The Botanical Review

, Volume 68, Issue 2, pp 270–334 | Cite as

Acclimation and adaptive responses of woody plants to environmental stresses

  • T. T. Kozlowski
  • S. G. Pallardy

Abstract

The predominant emphasis on harmful effects of environmental stresses on growth of woody plants has obscured some very beneficial effects of such stresses. Slowly increasing stresses may induce physiological adjustment that protects plants from the growth inhibition and/or injury that follow when environmental stresses are abruptly imposed. In addition, short exposures of woody plants to extreme environmental conditions at critical times in their development often improve growth. Furthermore, maintaining harvested seedlings and plant products at very low temperatures extends their longevity.

Drought tolerance: Seedlings previously exposed to water stress often undergo less inhibition of growth and other processes following transplanting than do seedlings not previously exposed to such stress. Controlled wetting and drying cycles often promote early budset, dormancy, and drought tolerance. In many species increased drought tolerance following such cycles is associated with osmotic adjustment that involves accumulation of osmotically active substances. Maintenance of leaf turgor often is linked to osmotic adjustment. A reduction in osmotic volume at full turgor also results in reduced osmotic potential, even in the absence of solute accumulation. Changes in tissue elasticity may be important for turgor maintenance and drought tolerance of plants that do not adjust osmotically.

Water deficits and nutrient deficiencies promote greater relative allocation of photosynthate to root growth, ultimately resulting in plants that have higher root:shoot ratios and greater capacity to absorb water and minerals relative to the shoots that must be supported.

At the molecular level, plants respond to water stress by synthesis of certain new proteins and increased levels of synthesis of some proteins produced under well-watered conditions. Evidence has been obtained for enhanced synthesis under water stress of water-channel proteins and other proteins that may protect membranes and other important macromolecules from damage and denaturation as cells dehydrate.

Flood tolerance: Both artificial and natural flooding sometimes benefit woody plants. Flooding of orchard soils has been an essential management practice for centuries to increase fruit yields and improve fruit quality. Also, annual advances and recessions of floods are crucial for maintaining valuable riparian forests. Intermittent flooding protects bottomland forests by increasing groundwater supplies, transporting sediments necessary for creating favorable seedbeds, and regulating decomposition of organic matter. Major adaptations for flood tolerance of some woody plants include high capacity for producing adventitious roots that compensate physiologically for decay of original roots under soil anaerobiosis, facilitation of oxygen uptake through stomata and newly formed lenticels, and metabolic adjustments. Halophytes can adapt to saline water by salt tolerance, salt avoidance, or both.

Cold hardiness: Environmental stresses that inhibit plant growth, including low temperature, drought, short days, and combinations of these, induce cold hardening and hardiness in many species. Cold hardiness develops in two stages: at temperatures between 10° and 20°C in the autumn, when carbohydrates and lipids accumulate; and at subsequent freezing temperatures. The sum of many biochemical processes determines the degree of cold tolerance. Some of these processes are hormone dependent and induced by short days; others that are linked to activity of enzyme systems are temperature dependent. Short days are important for development of cold hardiness in species that set buds or respond strongly to photoperiod. Nursery managers often expose tree seedlings to moderate water stress at or near the end of the growing season. This accelerates budset, induces early dormancy, and increases cold hardiness.

Pollution tolerance: Absorption of gaseous air pollutants varies with resistance to flow along the pollutant’s diffusion path. Hence, the amount of pollutant absorbed by leaves depends on stomatal aperture, stomatal size, and stomatal frequency. Pollution tolerance is increased when drought, dry air, or flooding of soil close stomatal pores.

Heat tolerance: Exposure to sublethal high temperature can increase the thermotolerance of plants. Potential mechanisms of response include synthesis of heat-shock proteins and isoprene and antioxidant production to protect the photosynthetic apparatus and cellular metabolism.

Breaking of dormancy: Seed dormancy can be broken by cold or heat. Embryo dormancy is broken by prolonged exposure of most seeds to temperatures of 1° to 15°C. The efficiency of treatment depends on interactions between temperature and seed moisture content. Germination can be postponed by partially dehydrating seeds or altering the temperature during seed stratification. Seed-coat dormancy can be broken by fires that rupture seed coats or melt seedcoat waxes, hence promoting water uptake. Seeds with both embryo dormancy and seed-coat dormancy may require exposure to both high and low temperatures to break dormancy. Exposure to smoke itself can also serve as a germination cue in breaking seed dormancy in some species.

Bud dormancy of temperate-zone trees is broken by winter cold. The specific chilling requirement varies widely with species and genotype, type of bud (e.g., vegetative or floral bud), depth of dormancy, temperature, duration of chilling, stage of plant development, and daylength. Interruption of a cold regime by high temperature may negate the effect of sustained chilling or breaking of bud dormancy. Near-lethal heat stress may release buds from both endodormancy and ecodormancy.

Pollen shedding: Dehiscence of anthers and release of pollen result from dehydration of walls of anther sacs. Both seasonal and diurnal pollen shedding are commonly associated with shrinkage and rupture of anther walls by low relative humidity. Pollen shedding typically is maximal near midday (low relative humidity) and low at night (high relative humidity). Pollen shedding is low or negligible during rainy periods.

Seed dispersal: Gymnosperm cones typically dehydrate before opening. The cones open and shed seeds because of differential shrinkage between the adaxial and abaxial tissues of cone scales. Once opened, cones may close and reopen with changes in relative humidity. Both dehydration and heat are necessary for seed dispersal from serotinous (late-to-open) cones. Seeds are stored in serotinous cones because resinous bonds of scales prevent cone opening. After fire melts the resinous material, the cone scales can open on drying. Fires also stimulate germination of seeds of some species. Some heath plants require fire to open their serotinous follicles and shed seeds. Fire destroys the resin at the valves of follicles, and the valves then reflex to release the seeds. Following fire the follicles of some species require alternate wetting and drying for efficient seed dispersal.

Stimulation of reproductive growth: Vegetative and reproductive growth of woody plants are negatively correlated. A heavy crop of fruits, cones, and seeds is associated with reduced vegetative growth in the same or following year (or even years). Subjecting trees to drought during early stages of fruit development to inhibit vegetative growth, followed by normal irrigation, sometimes favors reproductive growth. Short periods of drought at critical times not only induce formation of flower buds but also break dormancy of flower buds in some species. Water deficits may induce flowering directly or by inhibiting shoot flushing, thereby limiting the capacity of young leaves to inhibit floral induction. Postharvest water stress often results in abundant return bloom over that in well-irrigated plants. Fruit yields of some species are not reduced or are increased by withholding irrigation during the period of shoot elongation. In several species, osmotic adjustment occurs during deficit irrigation. In other species, increased fruit growth by imposed drought is not associated largely with osmotic adjustment and maintenance of leaf turgor.

Seedling storage: Tree seedlings typically are stored at temperatures just above or below freezing. Growth and survival of cold-stored seedlings depend on such factors as: date of lifting from the nursery; species and genotype; storage temperature, humidity, and illumination; duration of storage; and handling of planting stock after storage. Seedlings to be stored over winter should be lifted from the nursery as late as possible. Dehydration of seedlings before, during, and after storage adversely affects growth of outplanted seedlings. Long-term storage of seedlings may result in depletion of stored carbohydrates by respiration and decrease of root growth potential. Although many seedlings are stored in darkness, a daily photoperiod during cold storage may stimulate subsequent growth and increase survival of outplanted seedlings. For some species, rapid thawing may decrease respiratory consumption of carbohydrates (over slowly thawed seedlings) and decrease development of molds.

Pollen storage: Preservation of pollen is necessary for insurance against poor flowering years, for gene conservation, and for physiological and biochemical studies. Storage temperature and pollen moisture content largely determine longevity of stored pollen. Pollen can be stored successfully for many years in deep freezers at temperatures near −15°C or in liquid nitrogen (−196°C). Cryopreservation of pollen with a high moisture content is difficult because ice crystals may destroy the cells. Pollens of many species do not survive at temperatures below −40°C if their moisture contents exceed 20–30%. Pollen generally is air dried, vacuum dried, or freeze dried before it is stored. To preserve the germination capacity of stored pollen, rehydration at high humidity often is necessary.

Seed storage: Seeds are routinely stored to provide a seed supply during years of poor seed production, to maintain genetic diversity, and to breed plants. For a long time, seeds were classified as either orthodox (relatively long-lived, with capacity for dehydration to very low moisture contents without losing viability) or recalcitrant (short-lived and requiring a high moisture content for retention of viability). More recently, some seeds have been reclassified as suborthodox or intermediate because they retain viability when carefully dried. True orthodox seeds are preserved much more easily than are nonorthodox seeds. Orthodox seeds can be stored for a long time at temperatures between 2° and −20°C, with temperatures below −5°C preferable. Some orthodox seeds have been stored at superlow temperatures, although temperatures of −40°, −70°, or −196°C have not been appreciably better than −20°C for storage of seeds of a number of species. Only relatively short-term storage protocols have been developed for nonorthodox seeds. These treatments typically extend seed viability to as much as a year. The methods often require cryopreservation of excised embryos. Responses to cryopreservation of nonorthodox seeds or embryos vary with species and genotype, rate of drying, use of cryoprotectants, rates of freezing and thawing, and rate of rehydration.

Fruit storage: Storing fruits at low temperatures above freezing, increasing the CO2 concentration, and lowering the O2 concentration of fruit storage delays senescence of fruits and prolongs their life. Fruits continue to senesce and decay while in storage and become increasingly susceptible to diseases. Both temperate-zone and tropical fruits may develop chilling injury characterized by lesions, internal discoloration, greater susceptibility to decay, and shortened storage life. Chilling injury can be controlled by chemicals, temperature conditioning, and intermittent warming during storage. Stored fruits may become increasingly susceptible to disease organisms. Fruit diseases can be controlled by cold, which inhibits growth of microorganisms and maintains host resistance. Exposure of fruits to high CO2 and low O2 during storage directly suppresses disease-causing fungi. Pathogens also can be controlled by exposing fruits to heat before, during, and after storage. Scald that often develops during low-temperature storage can be controlled by chemicals and by heat treatments.

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Literature Cited

  1. Abdul-Baki, A. A. &J. D. Anderson. 1972. Physiological and biochemical deterioration of seeds. Pp. 283–315in T. T. Kozlowski (ed.), Seed biology. Vol. 2. Germination control, metabolism, and pathology. Academic Press, New York.Google Scholar
  2. Abrams, M. D. 1988a. Genetic variation in leaf morphology and plant and tissue water relations during drought inCercis canadensis L. Forest Sci. 34: 200–207.Google Scholar
  3. —. 1988b. Comparative plant and tissue water relations of three successional hardwood species in central Wisconsin. Tree Physiol. 4: 263–273.PubMedGoogle Scholar
  4. — 1988c. Sources of variation in osmotic potentials with special reference to North American tree species. Forest Sci. 34: 1030–1046.Google Scholar
  5. — &A. K. Knapp. 1986. Seasonal water relations of three gallery forest hardwood species in northeast Kansas. Forest Sci. 32: 687–696.Google Scholar
  6. Adriansz, T. D., J. M. Rummey &I. J. Bennett. 2000. Solid phase extraction and subsequent identification by gas-chromatography-mass spectrometry of a germination cue present in smoky water. Analytical Lett. 33: 2793–2804.Google Scholar
  7. Agashe, S. N. &A. G. Alfadil. 1989. Atmospheric biopollutant monitoring in relation to meteorological parameters. Grana 28: 97–104.Google Scholar
  8. Ahuja, M. R. 1986. Storage of forest tree germplasm in liquid nitrogen (-196°C). Silvae Genet. 35: 249–251.Google Scholar
  9. Akihama, T. &M. Omura. 1986. Preservation of fruit tree pollen. Pp. 101–112in Y. P. S. Bajaj (ed.), Biotechnology in agriculture and forestry. Vol. 1. Trees. Springer-Verlag, Berlin.Google Scholar
  10. ——. &I. Kozaki. 1979. Long-term storage of fruit tree pollen and its application in breeding. Jap. Agric. Res. Quart. 13: 238–241.Google Scholar
  11. Al-Ani, A., F. Bruzau, P. Raymond, V. Saint-Ges, J. M. LeBlanc &A. Pradet. 1985. Germination, respiration and adenylate energy charge of seeds at various oxygen partial pressures. Pl. Physiol. (Lancaster) 79: 885–890.Google Scholar
  12. Alam, M. T. &W. F. Grant. 1971. Pollen longevity in birch (Betula). Canad. J. Bot. 49: 797–798.Google Scholar
  13. Aldhous, J. R. 1964. Cold storage of forest nursery plants: An account of experimental trials, 1958–63. Forestry (Oxford) 37: 47–63.Google Scholar
  14. Allen, J. A., J. L. Chambers &M. Stine. 1994. Prospects for increasing the salt tolerance of forest trees: A review. Tree Physiol. 14: 843–853.PubMedGoogle Scholar
  15. Allen, R. &A. B. Wardrop. 1964. The opening and shedding mechanism of the female cones ofPinus radiata. Austral. J. Bot. 12: 125–134.Google Scholar
  16. Altman, P. L. & D. S. Dittmer (comps. &eds.). 1972. Life spans: Pollen. P. 1: 242in Biology data book. Ed. 2. Fed. of Amer. Societies for Exp. Biol., Bethesda, MD.Google Scholar
  17. Alvira, P.de T. &R. Alvim. 1978. Relation of climate to growth periodicity in tropical trees. Pp. 445–464in P. B. Tomlinson & M. H. Zimmermann (eds.), Tropical trees as living systems. Cambridge Univ. Press, Cambridge.Google Scholar
  18. Anderson, J. L., E. A. Richardson &C. D. Kesner. 1986. Validation of chill unit and flower bud phenology models for Montmorency sour cherry. Acta Hort. 184: 71–77.Google Scholar
  19. Anderson, R. E. 1979. The influence of storage temperature and warming during storage on peach and nectarine fruit quality. J. Amer. Soc. Hort. Sci. 104: 459–461.Google Scholar
  20. —. 1982. Long-term storage of peaches and nectarines intermittently warmed during controlledatmosphere storage. J. Amer. Soc. Hort. Sci. 107: 214–216.Google Scholar
  21. Angeles, G. 1992. The periderm of flooded and non-floodedLudwigea octovalvis (Onagraceae). IAWA Bull. 13: 195–200.Google Scholar
  22. —,R. F. Evert &T. T. Kozlowski. 1986. Development of lenticels and adventitious roots in floodedUlmus americana seedlings. Canad. J. Forest Res. 16: 585–590.Google Scholar
  23. Angelov, M. N., S. S. Sung, R. L. Doong, W. R. Harms, P. P. Kormanik &C. C. Black Jr. 1996. Long and short-term flooding effects on survival and sink-source relationships of swamp adapted tree species. Tree Physiol. 16: 477–484.PubMedGoogle Scholar
  24. Aphalo, P. J. &P. G. Jarvis. 1991. Do stomata respond to relative humidity? Pl. Cell Environ.14: 127–132.Google Scholar
  25. Armstrong, W., R. Brandie &M. B. Jackson. 1994. Mechanisms of flood tolerance in plants. Acta Bot. Neerl. 43: 307–358.Google Scholar
  26. Aronsson, A. 1975. Influence of photo- and thermoperiod on the initial stages of frost hardening and dehardening of phytotron-grown seedlings of Scots pine (Pinus silvestris L.) and Norway spruce (Picea abies (L.) Karst.) Stud. Forest Suec. 128: 1–20.Google Scholar
  27. — &L. Eliasson. 1970. Frost hardiness in Scotch pine, I. Conditions for test on hardy plant tissues and for evaluation of injuries by conductivity measurements. Stud. Forest Suec. 36: 127–132.Google Scholar
  28. Arora, R. &M. E. Wisniewski. 1994. Cold acclimation in genetically related (sibling) deciduous and evergreen peach (Prunus persica (L.) Batsch.), II. A 60-kilodalton bark protein in cold-acclimated tissues of peach. Pl. Physiol. (Lancaster)105: 95–101.Google Scholar
  29. Ashby, W. C. 1962. Budbreak and growth of basswood as influenced by daylength, chilling, and gibberellic acid. Bot. Gaz. 123: 162–170.Google Scholar
  30. —,D. F. Bresnan, C. A. Huetteman, J. E. Preece &P. L. Roth. 1991. Chilling and bud break in silver maple. J. Environm. Hort. 9: 1–4.Google Scholar
  31. Atkinson, C. J. J., W. E. Winner &H. A. Mooney. 1988. Gas exchange and SO2 fumigation studies with irrigated and unirrigated field grownDiplacus aurianticus andHeteromeles arbutifolia. Oecologia 75: 386–393.Google Scholar
  32. Augé, R. M. &J. W. Stodola. 1990. An apparent increase in symplastic water contributes to greater turgor in mycorrhizal roots of draughtedRosa plants. New Phytol. 115: 285–296.Google Scholar
  33. —,K. A. Schekel &R. L. Wample. 1986. Osmotic adjustment in leaves of VA mycorrhizal and nonmycorrhizal rose plants in response to drought stress. Pl. Physiol. (Lancaster) 82: 765–770.Google Scholar
  34. Austin, M. E., B. G. Mullinix &J. S. Mason. 1982. Influence of chilling on growth and flowering of rabbiteye blueberries. HortScience 17: 768–769.Google Scholar
  35. Bahari, Z. A., S. G. Pallardy &W. C. Parker. 1985. Photosynthesis, water relations, and drought adaptation in six woody species of oak-hickory forests in central Missouri. Forest Sci. 31: 557–569.Google Scholar
  36. Barbera, G., G. Fatta del Bosco &B. LoCascio. 1985. Effects of water stress on lemon summer bloom. The “Forzatura” technique in the Sicilian citrus industry. Acta Hort. 171: 391–397.Google Scholar
  37. Barbosa, W., F. A. Campo-Dallorto, M. Ojiima, F. P. Martins &Y. M. S. Boaventura. 1991. Pollen storage and germination, pollination and fruit set in subtropical peaches and nectarines. Bragantia 50: 17–28.Google Scholar
  38. Barden, L. S. 1979. Serotiny and seed viability ofPinus pungens in the southern Appalachians. Castanea 44: 44–47.Google Scholar
  39. Bartels, D., K. Schneider, G. Terstappen, D. Piatkowski &F. Salamini. 1990. Molecular cloning of abscisic acid-modulated genes which are induced during desiccation of the resurrection plantCraterostigma plantagineum. Planta 181: 27–34.Google Scholar
  40. Bates, R. M., A. X. Niemiera &J. R. Seiler. 1994. Cold storage method affects root and shoot water potential of bare-root hawthorn and maple trees. J. Environm. Hort. 12: 219–222.Google Scholar
  41. Bayley, P. B. 1995. Understanding large river-floodplain ecosystems. BioScience 45: 153–158.Google Scholar
  42. Beaufait, W. R. 1960. Some effects of high temperatures on the cones and seeds of jack pine. Forest Sci. 6: 194–199.Google Scholar
  43. Beckman, C, R. L. Perry &J. A. Flore. 1992. Short-term flooding affects gas exchange characteristics of containerized sour cherry trees. HortScience 27: 1297–1301.Google Scholar
  44. Bedinger, M. S. 1981. Hydrology of the bottomland forests of the Mississippi embayment. Pp. 161–176in J. R. Clark & J. Benforado (eds.), Wetlands of bottomland hardwood forests. Elsevier, New York.Google Scholar
  45. Bell, D. T., J. A. Plummer &S. K. Taylor. 1993. Seed germination ecology in western Australia. Bot. Rev. (Lancaster) 59: 24–54.Google Scholar
  46. Bellani, L. M. &P. R. Bell. 1986. Cytoplasmic differences between the pollen grains of two cultivars ofMalus domestica Borkh. correlated with viability and germination. Ann. Bot. (London), n.s., 58: 563–568.Google Scholar
  47. Bengston, G. W. 1965. Effects of intensive culture on nutrition, growth and flower production of young slash pine. U.S. Forest Serv., Prog. Rep. FS-l-f9. Southeastern Forest Exp. Sta., Asheville, NC.Google Scholar
  48. Berjak, P., J. M. Farrant, D. J. Maycock &N. W. Pammenter. 1990. Recalcitrant (homoiohydrous) seeds: The enigma of their desiccation-sensitivity. Seed Sci. & Technol. 18: 279–310.Google Scholar
  49. —,N. W. Pammenter &C. Vertucci. 1992. Homoiohydrous (recalcitrant) seeds: Development status, desiccation sensitivity and the state of water in axes ofLandolphia kirkii Dyer. Planta 186: 249–261.Google Scholar
  50. Berninger, F., A. Makela &P. Hari. 1996. Optimal control of gas exchange during drought: Empirical evidence. Ann. Bot. (London), n.s., 77: 469–476.Google Scholar
  51. Berry, J. A. &O. Björkman. 1980. Photosynthetic response and adaptation to temperature in higher plants. Annual Rev. Pl. Physiol. 31: 491–543.Google Scholar
  52. Bewley, J. D. &M. Black. 1982. Physiology and biochemistry of seeds in relation to germination. Vol. 2. Viability, dormancy, and environmental control. Springer-Verlag, New York.Google Scholar
  53. —,K. M. Larsen &J. E. Papp. 1983. Water-stress-induced changes in the pattern of protein synthesis in maize seedling mesocotyls: A comparison with the effects of heat shock. J. Exp. Bot. 34: 1126–1133.Google Scholar
  54. Bigras, F. J. &A. L. D’Aoust. 1993. Influence of photoperiod on shoot and root frost tolerance and bud phenology of white spruce seedlings (Picea glauca). Canad. J. Forest Res. 23: 219–228.Google Scholar
  55. Biswell, H. H. 1974. Effects of fire on chaparral. Pp. 321–364in T. T. Kozlowski & C. E. Ahlgren (eds.), Fire and ecosystems. Academic Press, New York.Google Scholar
  56. —. 1989. Prescribed burning in California wildlands vegetation management. Univ. of California Press, Berkeley.Google Scholar
  57. Blake, J., J. B. Zaerr &S. Hee. 1979. Controlled moisture stress to improve cold hardiness and morphology of Douglas-fir seedlings. Forest Sci. 25: 576–582.Google Scholar
  58. Blake, T. J. &T. J. Tschaplinski. 1992. Water relations. Pp. 66–94in C. P. Mitchell, J. B. FordRobertson, T. M. Hinckley & L. Sennerby-Forsse (eds.), Ecophysiology of short rotation forest crops. Elsevier, Amsterdam.Google Scholar
  59. Blazich, F. A. &L. E. Hinesley. 1984. Low temperature germination of Fraser fir seed. Canad. J. Forest Res. 14: 948–949.Google Scholar
  60. Boland, A.-M., P. D. Mitchell, P. H. Jerie &I. Goodwin. 1993. The effect of regulated deficit irrigation on tree water use and growth of peach. J. Hort. Sci. 68: 261–274.Google Scholar
  61. Bonner, F. 1986. Technologies to maintain tree germplasm diversity. Pp. 2: 630–672in Technologies to maintain biological diversity. Office of Technology Assessment, Washington, DC.Google Scholar
  62. —. 1990. Storage of seeds: Potential and limitations for germplasm conservation. Forest Ecol. & Managern. 35: 35–43.Google Scholar
  63. Botkin, D. B. 1993. Forest dynamics: An ecological model. Oxford Univ. Press, Oxford.Google Scholar
  64. Bradstock, R. A. 1991. The role of fire in establishment of seedlings of serotinous species from the Sydney region. Austral. J. Bot. 39: 347–356.Google Scholar
  65. —,A. M. Gill, S. M. Hastings &P. H. Moore. 1994. Survival of serotinous seedbanks during bushfires: Comparative studies ofHakea species from southeastern Australia. Austral. J. Ecol. 19: 276–282.Google Scholar
  66. Bramlage, W. J. &S. Meir. 1990. Chilling injury of crops of temperate origin. Pp. 37–49in C.-Y. Wang (ed.), Chilling injury of horticultural crops. CRC Press, Boca Raton, FL.Google Scholar
  67. — &C. D. Watkins. 1993. Warming apples during cold storage: Its potential as a non-chemical procedure to reduce losses from superficial scald. HortScience 28: 235.Google Scholar
  68. Bramlett, D. L. &F. R. Matthews. 1991. Storing loblolly pine pollen. Southern J. Appl. Forest. 15: 153–157.Google Scholar
  69. Bray, E., J. Bailey-Serres &E. Weretilynk. 2000. Response to abiotic stresses. Pp. 1158–1203in B. B. Buchanan, W. Gruissem & R. L. Jones (eds.), Biochemistry and molecular biology of plants. Amer. Soc. Pl. Physiol., Rockville, MD.Google Scholar
  70. Brown, N. A. &J. Van Staden. 1997. Smoke as a germination cue: A review. Pl. Growth Regulation 22: 115–124.Google Scholar
  71. Brown, R. M. 1971. Cold storage of forest plants. Quart. J. Forest. 65: 305–315.Google Scholar
  72. Buckley, G. P. &P. H. Lovell. 1974. The effect of cold storage on subsequent growth of one-year-old seedlings ofPicea sitchensis. Ann. Bot. (London), n.s., 38: 657–660.Google Scholar
  73. Bullock, S. 1982. Reproductive ecology ofCeanothus cordulatus. M.A. thesis, California State Univ., Fresno.Google Scholar
  74. Burke, J. J., P. J. O’Mahony, &M. J. Oliver. 2000. Isolation ofArabidopsis mutants lacking components of acquired thermotolerance. Pl. Physiol.(Lancaster) 123: 575–587.Google Scholar
  75. Buxton, G. F., D. R. Cyr &E. B. Dumbroff. 1985. Physiological responses of three northern conifers to rapid and slow induction of moisture stress. Canad. J. Bot. 63: 1171–1176.Google Scholar
  76. Camm, E. L., D. C. Goetze, S. N. Silim &D. P. Lavender. 1994. Cold storage of conifer seedlings: An update from the British Columbia perspective. Forest Chron. 70: 311–316.Google Scholar
  77. —,R. D. Guy, D. S. Kubien, D. C. Goetze, S. N. Silim &P. J. Burton. 1995. Physiological recovery of freezer-stored white and Engelmann spruce seedlings planted following different thawing regimes. New Forests 10: 55–77.Google Scholar
  78. Campbell, R. K. &F. C. Sorenson. 1973. Cold-acclimation in seedling Douglas-fir related to phenology and provenance. Ecology 54: 1148–1151.Google Scholar
  79. Campbell, S. A. &T. J. Close. 1997. Dehydrins: Genes, proteins, and associations with phenotypic traits. New Phytol. 137: 61–74.Google Scholar
  80. Cannell, M. G. 1989. Chilling, thermal time and the date of flowering of trees. Pp. 99–113in C. J. Wright (ed.), Manipulation of fruiting. Butterworths, London.Google Scholar
  81. — &L. J. Sheppard. 1982. Seasonal changes in the frost hardiness of provenances ofPicea sitchensis in Scotland. Forestry (Oxford) 55: 137–153.Google Scholar
  82. ——.R. I. Smith &M. B. Murray. 1985. Autumn frost damage on youngPicea sitchensis, 2. Shoot frost hardening, and the probability of frost damage in Scotland. Forestry (Oxford) 58: 145–166.Google Scholar
  83. —,P. B. Tabbush, J. D. Deans, M. K. Hollingsworth, L. J. Sheppard, J. J. Philipson &M. B. Murray. 1990. Sitka spruce and Douglas-fir seedlings in the nursery and in cold storage: Root growth potential, carbohydrate content, dormancy, frost hardiness, and mitotic index. Forestry (Oxford) 63: 9–27.Google Scholar
  84. Caspari, H. W., M. H. Behboudian &D. J. Chalmers. 1994. Water use, growth, and fruit yield of Hosui Asian pears under deficit irrigation. J. Amer. Soc. Hort. Sci. 119: 383–388.Google Scholar
  85. Cayford, J. H. &D. J. McRae. 1983. The ecological role of fire risk in jack pine forests. Pp. 183–199in R. W. Wein & D. A. MacLean (eds.), The role of fire in northern circumpolar ecosystems. Wiley, New York.Google Scholar
  86. Cellier, F., G. Conejero, J. C. Breitler &F. Casse. 1998. Molecular and physiological responses to water deficit in drought-tolerant and drought-sensitive lines of sunflower: Accumulation of dehydrin transcripts correlates with tolerance. Pl. Physiol. (Lancaster) 116: 319–328.Google Scholar
  87. Chalmers, D. J., K. A. Olsson &T. R. Jones. 1983. Water relations of peach trees and orchards. Pp. 197–232in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 3. Plant responses and control of water balance. Academic Press, New York.Google Scholar
  88. —,P. D. Mitchell &P. H. Jerie. 1984. The physiology of growth of peach and pear trees using reduced irrigation. Acta Hort. 146: 143–149.Google Scholar
  89. Chalutz, E., J. Waks &M. Schiffmann-Nade. 1985. Reducing the susceptibility of grapefruit to chilling injury during cold treatment. HortScience 20: 226–228.Google Scholar
  90. Chen, P. M., P. H. Li &M. J. Burke. 1977. Induction of frost hardiness in stem cortical tissues and water status in plants and soil. Pl. Physiol. (Lancaster) 59: 236–239.Google Scholar
  91. Chen, T. H., P. Murakami, P. Lombard &L. H. Fuchigami. 1991. Desiccation tolerance in barerooted apple trees prior to transplanting. J. Environm. Hort. 9: 13–17.Google Scholar
  92. Cherry, J. H. (ed.). 1989. Environmental stress in plants: Biochemical and physiological mechanisms. Springer-Verlag, Berlin.Google Scholar
  93. Ching, T. M. &K. K. Ching. 1962. Physical and physiological changes in maturing Douglas-fir cones and seeds. For. Sci. 8: 21–31.Google Scholar
  94. Chirkova, T. V. &T. S. Gutman. 1972. Physiological role of branch lenticels in willow and poplar under conditions of root anaerobiosis. Soviet Pl. Physiol. 19: 289–295.Google Scholar
  95. Choi, H. S. 1992. Variation in water potential components among half sib families of shortleaf pine (Pinus echinata) in response to soil drought. Canad. J. Forest Res. 22: 111–116.Google Scholar
  96. Christensen, N. L. 1995. Fire ecology. Pp. 2: 21–32in W. A. Nierenberg (ed.), Encyclopedia of environmental biology. Academic Press, San Diego, CA.Google Scholar
  97. Christersson, L. 1978. The influence of photoperiod and temperature on the development of frost hardiness in seedlings ofPinus sylvestris andPicea abies. Physiol. Pl. 44: 288–294.Google Scholar
  98. Clausen, J. J. &T. T. Kozlowski. 1965. Seasonal changes in moisture contents of gymnosperm cones. Nature 206: 112–113.Google Scholar
  99. Clemens, J. &P. G. Jones. 1978. Modification of drought resistance by water stress conditioning inAcacia andEucalyptus. J. Exp. Bot. 29: 895–904.Google Scholar
  100. Cline, R. G. &G. S. Campbell. 1976. Seasonal and diurnal water relations of selected forest species. Ecology 57: 367–373.Google Scholar
  101. Close, T. J. 1996. Dehydrins: Emergence of a biochemical role of a family of plant dehydration proteins. Physiol. Pl. 97: 795–803.Google Scholar
  102. —. 1997. Dehydrins: A commonality in the response of plants to dehydration and low temperature. Physiol. Pl. 100: 291–296.Google Scholar
  103. Cohen, E., M. Shueli &Y. Shalom. 1983. The effect of intermittent warming on the reduction of chilling injury of Villa Franca lemon fruit stored at cold temperature. J. Hort. Sci. 58: 593–598.Google Scholar
  104. Collier, D. E. &M. G. Boyer. 1989. The water relations ofThuja occidentalis L. from two sites of contrasting moisture availability. Bot. Gaz. 150: 445–448.Google Scholar
  105. Colombo, S. J. 1990. Bud dormancy status, frost hardiness, shoot moisture content and readiness of black spruce container seedlings for frozen storage. J. Amer. Soc. Hort. Sci. 115: 302–307.Google Scholar
  106. — &E. M. Raitanen. 1991. Frost hardening in white cedar container seedlings exposed to intermittent short days and cold temperatures. Forest Chron. 67: 542–544.Google Scholar
  107. Connor, K. F. &L. E. Towill. 1993. Pollen-handling protocol and hydration/dehydration characteristics of pollen for application to long-term storage. Euphytica 68: 77–84.Google Scholar
  108. Conway, W. S., C. E. Sams, C. Y. Wang &J. A. Abbott. 1994. Additive effects of postharvest calcium and heat treatment on reducing decay and maintaining quality in apples. J. Amer. Soc. Hort. Sci. 119: 49–53.Google Scholar
  109. Copes, D. L. 1985. Fertility of Douglas-fir pollen after one year of storage in liquid nitrogen. Forest Sci. 31: 569–574.Google Scholar
  110. —. 1987. Long-term storage of Douglas-fir pollens. Forest Sci. 33: 244–246.Google Scholar
  111. Courts, M. P. 1981. Effects of root or shoot exposure before planting on the water relations, growth and survival of Sitka spruce. Canad. J. Forest Res. 11: 703–709.Google Scholar
  112. — &J. J. Philipson. 1978. Tolerance of tree roots to waterlogging, II. Adaptation of Sitka spruce and lodgepole pine to waterlogged soil. New Phytol. 80: 71–77.Google Scholar
  113. Couvillon, G. A. &A. Erez. 1985. Effect of level and duration of high temperatures on rest in the peach. J. Amer. Soc. Hort. Sci. 110: 579–581.Google Scholar
  114. Cowling, R. M. &B. B. Lamont. 1985. Seed release inBanksia: The role of wet-dry cycles. Austral. J. Ecol. 10: 169–171.Google Scholar
  115. Cram, W. H. &C. H. Lundquist. 1981. Overwintering and spring storage of pine and spruce seedlings. Forest Chron. 57: 162–164.Google Scholar
  116. Crane, J. H. &F. S. Davies. 1988. Periodic and seasonal flooding effects on survival, growth, and stomatal conductance of young rabbiteye blueberry plants. J. Amer. Soc. Hort. Sci.113: 488–493.Google Scholar
  117. —. 1989. Flooding responses ofVaccinium species. HortScience 24: 203–210.Google Scholar
  118. Crawford, R. M. M. 1989. Studies in plant survival: Ecological case histories of plant adaptation to adversity. Blackwell Scientific, Oxford.Google Scholar
  119. —. 1993. Plant survival without oxygen. Biologist 40: 110–114.Google Scholar
  120. — &R. Braendle. 1996. Oxygen deprivation stress in a changing environment. J. Exp. Bot. 47: 145–159.Google Scholar
  121. Cripps, J. E. L. 1981. Biennial patterns in apple tree growth and cropping as related to irrigation and thinning. J. Hort. Sci. 56: 161–168.Google Scholar
  122. Crisosto, C. H., R. S. Johnson, J. G. Luza &G. M. Crisosto. 1994. Irrigation regimes affect fruit soluble solids concentration and rate of water loss of O’Henry peaches. HortScience 29: 1169–1171.Google Scholar
  123. Crivelli, A. J., P. Grilles &B. Lacaze. 1995. Responses of vegetation to a rise in water level at Kerkini Reservoir (1982–1991), a Ramsar site in northern Greece. Environm. Managern. 19: 417–430.Google Scholar
  124. Cromer, R. N. &P. G. Jarvis. 1990. Growth and biomass partitioning inEucalyptus grandis seedlings in response to nitrogen supply. Austral. J. P1. Physiol. 17: 503–516.Google Scholar
  125. D’Aoust, A. L. & S. E. Cameron. 1982. The effect of dormancy induction, low temperatures and moisture stress on cold hardening of containerized black spruce seedlings. Pp. 153–156in J. B. Scaratt, C. Glerum & C. A. Plexman (eds.), Proceedings of the Canadian Containerized Tree Seedling Symposium. Dept. of the Environm., Canad. Forest. Serv., Great Lakes Forest Res. Centre. COJFRC Symp. O-P-10.Google Scholar
  126. Dat, J. F., C. H. Foyer &I. M. Scott. 1998. Changes in salicylic acid and antioxidants during induced thermotolerance in mustard seedlings. Pl. Physiol. (Lancaster) 118: 1455–1461.Google Scholar
  127. Davenport, T. L. 1990. Citrus flowering. Hort. Rev. 12: 349–408.Google Scholar
  128. — 1994. Beneficial effects of water stress. Pp. 16–20in T. L. Davenport & H. M. Harrington (eds.), Plant stress in the tropical environment. U.S. Dept. Agric, Washington, DC.Google Scholar
  129. Davies, D. D. 1980. Anaerobic metabolism and the production of organic acids. Pp. 511–611in D. D. Davies (ed.), The biochemistry of plants. Vol. 2. Metabolism and respiration. Academic Press, New York.Google Scholar
  130. Davies, F. S. &L. G. Albrigo. 1983. Water relations of small fruits. Pp. 89–136in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 7. Additional woody crop plants. Academic Press, New York.Google Scholar
  131. — &J. A. Flore. 1986a. Flooding, gas exchange and hydraulic conductivity of highbush blueberry. Physiol. Pl. 67: 545–551.Google Scholar
  132. —. 1986b. Short-term flooding effects on gas exchange and quantum yield of rabbiteye blueberry (Vaccinium ashei Reade). Pl. Physiol. (Lancaster) 81: 289–292.Google Scholar
  133. — &A. N. Lakso. 1979. Diurnal and seasonal changes in leaf water potential components and elastic properties in response to water stress in apple trees. Physiol. Pl. 46: 109–114.Google Scholar
  134. Davies, H. V. &N. J. Pinfield. 1979. RNA and protein synthesis during after-ripening of seedsof Acer platanoides L. Z. Pflanzenphysiol. 92: 85–90.Google Scholar
  135. Davies, W. J. &T. T. Kozlowski. 1974. Stomatal responses of five woody angiosperms to light intensity and humidity. Canad. J. Bot. 52: 1525–1534.Google Scholar
  136. —. 1975a. Effects of applied abscisic acid and plant water stress on transpiration of woody angiosperms. Forest Sci. 22: 191–195.Google Scholar
  137. —. 1975b. Effect of applied abscisic acid and silicone on water relations and photosynthesis of woody plants. Canad. J. Forest Res. 5: 90–96.Google Scholar
  138. Davis, J. T. &D. Sparks. 1974. Assimilation and translocation patterns of carbon-14 in the shoots of fruiting pecan treesCarya illinoensis Koch. J. Amer. Soc. Hort. Sci. 99: 468–480.Google Scholar
  139. Deans, J. D., C. Lundberg, P. M. Tabbush, M. G. R. Cannell, L. J. Sheppard &M. B. Murray. 1990. The influence of desiccation, rough handling and cold storage on the quality and establishment of Sitka spruce planting stock. Forestry (Oxford) 63: 129–141.Google Scholar
  140. DeCastro, M. F.-G. &C. J. Martinez-Honduvilla. 1982. Biochemical changes inPinus pinea seeds during storing. Revista Española de Fisiología (Pamplona) 38: 13–20.Google Scholar
  141. — 1984. Ultrastructural changes in naturally agedPinus pinea seeds. Physiol. Pl. 62: 581–588.Google Scholar
  142. Deffenbacher, F. W. &E. Wright. 1954. Refrigerated storage of conifer seedlings in the Pacific Northwest. J. Forest. 52: 936.Google Scholar
  143. Dennis, C. (ed.). 1983. Post-harvest pathology of fruits and vegetables. Academic Press, New York.Google Scholar
  144. Dennis, F. G., Jr. 1996. A physiological comparison of seed and bud dormancy. Pp. 47–56in G. A. Lang (ed.), Plant dormancy: Physiology, biochemistry and molecular biology. CAB International, Oxford.Google Scholar
  145. Despain, D. G., D. L. Clark &J. J. Reardon. 1996. Simulation of crown fire effects on canopy seed bank in lodgepole pine. Int. J. Wildland Fire 6: 45–49.Google Scholar
  146. Dewers, R. S. &D. M. Moehring. 1970. Effects of soil water stress on initiation of ovulate primordia in loblolly pine. Forest Sci. 16: 219–221.Google Scholar
  147. Dewey, D. H. (ed.). 1977. Controlled atmospheres for the storage and transport of perishable agricultural commodities. Dept. of Hort., Rep. No. 28. Michigan State Univ., East Lansing.Google Scholar
  148. Dick, J. McP., P. G. Jarvis &R. R. B. Leakey. 1990. Influence of male cones on early season vegetative growth ofPinus contorta trees. Tree Physiol. 6: 105–117.PubMedGoogle Scholar
  149. Dickmann, D. I. &T. T. Kozlowski. 1970. Mobilization and incorporation of photoassimilated14C by growing vegetative and reproductive tissues of adultPinus resinosa Ait. trees. Pl. Physiol. (Lancaster) 45: 284–288.Google Scholar
  150. ——. 1973. Water, nutrient, and carbohydrate relations in growth ofPinus resinosa ovulate strobili. Pp. 195–209in Proceedings of the First All Union Symposium on Sexual Reproduction in Conifers. Novosibirsk, USSR.Google Scholar
  151. Di-Giovanni, F. &P. Kevan. 1991. Factors affecting pollen dynamics and its importance to pollen contamination: A review. Canad. J. Forest Res. 21: 1155–1170.Google Scholar
  152. Drake, S. R., F. E. Larsen &S. S. Higgins. 1991. Quality and storage of Granny Smith and Greenspur apples on seedling M.26 and MM.111 rootstocks. J. Amer. Soc. Hort. Sci. 116: 261–264.Google Scholar
  153. Dreyer, E., F. Bosquet &M. Ducrey. 1990. Use of pressure-volume curves in water relations analysis in woody shoots: Influence of rehydration and comparison of four European oak species. Ann. Sci. Forest. 47: 285–297.Google Scholar
  154. Dry, P. R. &B. R. Loveys. 1999. Grapevine shoot growth and stomatal conductance are reduced when part of the root system is dried. Vitis 38: 151–156.Google Scholar
  155. Duffield, J. W. &R. Z. Callaham. 1959. Deep-freezing pine pollen. Silvae Genet. 8: 22–24.Google Scholar
  156. Duncan, R. P. 1993. Flood disturbance and the coexistence of species in a lowland podocarp forest, south Westland, New Zealand. J. Ecol. 81: 403–416.Google Scholar
  157. Durand, G. 1990. Effects of RDI on apple tree (cv.Royal Gala) growth, yield, and fruit quality in a humid environment. Ph.D. diss., Massey Univ., Palmerston North, New Zealand.Google Scholar
  158. During, H. 1985. Osmotic adjustment in grapevines. Acta Hort. 171: 315–322.Google Scholar
  159. Duryea, M. L. & T. D. Landis (eds.). 1984. Forest nursery manual. M. Nijhoff / Dr. W. Junk, The Hague.Google Scholar
  160. — &K. M. McClain. 1984. Altering seedling physiology to improve reforestation success. Pp. 77–114in M. L. Duryea & G. N. Brown (eds.), Seedling physiology and reforestation success. M. Nijhoff/ Dr. W. Junk, Dordrecht, Netherlands.Google Scholar
  161. Ebel, R. C., E. L. Proebsting &M. E. Patterson. 1993. Regulated deficit irrigation may alter apple maturity, quality, and storage life. HortScience 28: 141–143.Google Scholar
  162. Edwards, D. G. W. 1986. Special prechilling techniques for tree seed. J. Seed Technol. 10: 151–171.Google Scholar
  163. Eis, S., E. H. Garman &L. F. Ebell. 1965. Relation between cone production and diameter increment of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), grand fir (Abies grandis (Dougl.) Lindl.) and western white pine (Pinus monticola Dougl.). Canad. J. Bot. 43: 1553–1559.Google Scholar
  164. El-Goorani, M. A. &N. F. Sommer. 1981. Effects of modified atmospheres on postharvest pathogens of fruits and vegetables. Hort. Rev. 3: 412–461.Google Scholar
  165. Ellis, R. H., T. D. Hong & E. H. Roberts. 1985. Handbook of seed technology for genebanks. 2 vols. Int. Board for Pl. Genet. Resources, Rome.Google Scholar
  166. Enright, N. J. &B. B. Lamont. 1989. Fire temperatures and follicle-opening requirements in 10Banksia species. Austral. J. Ecol. 14: 107–114.Google Scholar
  167. Epron, D. 1997. Effects of drought on photosynthesis and on the thermotolerance of photosystem II in seedlings of cedar (Cedrus atlantica andC. libani). J. Exp. Bot. 48: 1835.Google Scholar
  168. Erez, A. &G. A. Couvillon. 1987. Characterization of the moderate temperature effect on peach bud rest. J. Amer. Soc. Hort. Sci. 112: 677–680.Google Scholar
  169. —— &C. H. Hendershott. 1979. The effect of cycle length on chilling negation by high temperatures in dormant peach buds. J. Amer. Soc. Hort. Sci. 104: 573–576.Google Scholar
  170. Fahn, A. &E. Werker. 1972. Anatomical mechanisms of seed dispersal. Pp. 155–121in T. T. Kozlowski (ed.), Seed biology. Vol. 1. Importance, development, and germination. Academic Press, New York.Google Scholar
  171. Fallik, E., S. Grinberg, M. Gambourg, J. D. Klein &S. Lurie. 1996. Prestorage heat treatment reduces pathogenicityof Penicillium expansum in apple fruits. Pl. Pathol. (Oxford) 45: 92–97.Google Scholar
  172. Fan, S., T. J. Blake &E. Blumwald. 1994. The relative contribution of elastic and osmotic adjustments to turgor maintenance of woody species. Physiol. Pl. 90: 408–413.Google Scholar
  173. Fanjul, L. &H. G. Jones. 1982. Rapid stomatal responses to humidity. Planta 154: 135–138.Google Scholar
  174. — &P. H. Rosher. 1984. Effect of water stress on internal water relations of apple leaves. Physiol. Pl. 62: 321–328.Google Scholar
  175. Farmer, R. E., Jr. &P. E. Barnett. 1974. Low temperature storage of black walnut pollen. Cryobiology 11: 366–367.PubMedGoogle Scholar
  176. — &M. Cunningham. 1981. Seed dormancy of red maple in east Tennessee. Forest Sci. 27: 446–448.Google Scholar
  177. — &J. C. Goelz. 1984. Germination characteristics of red maple in northwestern Ontario. Forest Sci. 30: 670–672.Google Scholar
  178. Fenner, P., W. W. Brady &D. R. Patten. 1985. Effects of regulated water flows on regeneration of Fremont cottonwood. J. Range Managern. 38: 135–138.Google Scholar
  179. Fereres, E., G. Cruz-Romero, G. J. Hoffman &S. L. Rawlins. 1979. Recovery of orange trees following severe water stress. J. Appl. Ecol. 16: 833–842.Google Scholar
  180. Fernandez, R. T., R. L. Perry &J. A. Flore. 1997. Drought response of young apple trees on three rootstocks, 2. Gas exchange, chlorophyll fluorescence, water relations, and leaf abscisic acid. J. Amer. Soc. Hort. Sci. 122: 841–848.Google Scholar
  181. Fidler, J. C. 1973. The biology of apple and pear storage. Commonw. Bur. Hort. & Plantation Crops, Res. Rev. No. 3. Commonw. Agric. Bur., Farnham Royal, UK.Google Scholar
  182. — &G. Mann. 1972. Refrigerated storage of apples and pears: A practical guide. Commonw. Bur. Hort. & Plantation Crops, Res. Rev. No. 2. Commonw. Agric. Bur., Farnham Royal, UK.Google Scholar
  183. Fielding, J. M. 1947. The seeding and natural regeneration of Monterey pine in South Australia. Austral. Forest. & Timber Bur. Bull. 29: 1–60.Google Scholar
  184. —. 1957. Notes on the dispersal of pollen by Monterey pine. Austral. Forest. 21: 17–22.Google Scholar
  185. Fimbel, R. A., C. C. Fimbel &J. E. Kuser. 1995. Selection and processing of serotinous pitch pine cones. Northern J. Appl. Forest. 12: 64–68.Google Scholar
  186. Fishman, S., A. Erez &G. A. Couvillon. 1987a. The temperature dependence of dormancy breaking in plants: Mathematical analysis of a two-step model involving a cooperative transition. J. Theor. Biol. 124: 473–483.Google Scholar
  187. —. 1987b. The temperature dependence of dormancy breaking in plants: Computer simulation of processes studied under controlled temperatures. J. Theor. Biol. 126: 309–321.Google Scholar
  188. Fitter, A. H. &R. K. M. Hay. 1987. Environmental physiology of plants. Ed. 2. Academic Press, London.Google Scholar
  189. Flint, H. L. &J. J. McGuire. 1962. Response of rooted cuttings of several woody ornamental species to overwinter storage. Proc. Amer. Soc. Hort. Sci. 80: 625–629.Google Scholar
  190. Fraser, B., S. Haywood-Farmer &C. Kooistra. 1990. Thawing guidelines for frozen stock. Pp. 61–64in R. Scagel & R. Evans (eds.), Consumers guide to tree seedlings: A workbook on production, testing and handling. Canada-British Columbia Forest Resource Development Agreement. Victoria, BC.Google Scholar
  191. Fraver, S. 1992. The insulating value of serotinous cones in protecting pitch pine (Pinus rigida) seeds from high temperatures. J. Pennsylvania Acad. Sci. 65: 112–116.Google Scholar
  192. Fray, R. G., A. Wallace, D. Grierson &G. W. Lycett. 1994. Nucleotide sequence and expression of a ripening and water stress-related cDNA from tomato with homology to the MIP class of membrane channel proteins. Pl. Molec. Biol. 24: 539–543.Google Scholar
  193. Fuchigami, L. H. &C. C. Nee. 1987. Degree of growth stage model and rest breaking mechanisms in temperate woody perennials. HortScience 22: 836–845.Google Scholar
  194. —,D. R. Evert &C. J. Weiser. 1971. A translocatable cold hardiness promoter. Pl. Physiol. (Lancaster) 47: 164–167.Google Scholar
  195. Ganeshan, S. 1986. Cryogenic preservation of papaya pollen. Sci. Hort. 28: 65–70.Google Scholar
  196. Garber, M. P. &J. G. Mexal. 1980. Lift and storage practices: Their impact on successful establishment of Southern pine plantations. New Zealand J. Forest Sci. 10: 72–82.Google Scholar
  197. Gauthier, S., Y. Bergeron &J.-P. Simon. 1993. Cone serotiny in jack pine ontogenetic position and environmental effects. Canad. J. Forest Res. 23: 394–401.Google Scholar
  198. ———. 1996. Effects of fire regime on the serotiny level of jack pine. J. Ecol. 84: 539–548.Google Scholar
  199. Gebre, G. M. &M. R. Kuhns. 1991. Seasonal and clonal variations in drought tolerance ofPopulus deltoides. Canad. J. Forest Res. 21: 910–916.Google Scholar
  200. — &J. R. Brandie. 1994. Organic solute accumulation and dehydration tolerance in three water stressedPopulus deltoides clones. Tree Physiol.14: 575–587.PubMedGoogle Scholar
  201. Geiger, D. R., K. E. Koch &W. J. Shieh. 1996. Effect of environmental factors on whole plant assimilate partitioning and associated gene expression. J. Exp. Bot. 47: 1229–1238.Google Scholar
  202. George, A. S. 1981. The genusBanksia L.f. (Proteaceae). Nuytsia 3: 239–474.Google Scholar
  203. Gill, A. M. 1976. Fire and the opening ofBanksia ornata F. Muell. follicles. Austral. J. Bot. 24: 329–335.Google Scholar
  204. —. 1981. Adaptive responses of Australian vascular plant species to fires. Pp. 243–272in A. M. Gill, R. H. Groves & I. R. Noble (eds.), Fire and the Australian biota. Austral. Acad. Sci., Canberra.Google Scholar
  205. — &R. H. Groves. 1980. Fire regimes in heathlands and their plant-ecological effects. Pp. 61–84in R. L. Specht (ed.), Heathlands and related shrublands. Ecosystems of the world, 9B. Elsevier, Amsterdam.Google Scholar
  206. Girona, J., M. Mata, D. A. Goldhamer, R. S. Johnson &T. J. DeJong. 1993. Patterns of soil and tree water status and leaf functioning during regulated deficit irrigation scheduling in peach. J. Amer. Soc. Hort. Sci. 118: 580–586.Google Scholar
  207. Givnish, T. J. 1981. Serotiny, geography and fire in the pine barrens of New Jersey. Evolution 35: 101–123.Google Scholar
  208. Gongolly, S. R., R. Singh, S. L. Katyal &D. Singh. 1957. The mango. ICAR, New Delhi.Google Scholar
  209. Gonzalez-Benito, M. E. &C. Perez-Ruiz. 1992. Cryopreservation ofQuercus faginea embryonic axes. Cryobiology 29: 685–690.Google Scholar
  210. Goode, J. E. 1975. Water storage, water stress and crop responses to irrigation. Pp. 51–62in H. C. Pereira (ed.), Climate and the orchard. Commonw. Bur. Hort. & Plantation Crops, Res. Rev. No. 3. Commonw. Agric. Bur., Farnham Royal, UKGoogle Scholar
  211. — &K. H. Higgs. 1973. Water, osmotic and pressure potential relationships in apple leaves. J. Hort. Sci. 48: 203–215.Google Scholar
  212. — &K. J. Hyrycz. 1964. The response of Laxton’s Superb apple trees to different soil moisture conditions. J. Hort. Sci. 39: 254–276.Google Scholar
  213. — &J. Ingram. 1971. The effect of irrigation on the growth, cropping, and nutrition of Cox’s Orange Pippin apple trees. J. Hort. Sci. 46: 195–208.Google Scholar
  214. Gosling, P. G. 1991. Beechnut storage: A review and practical interpretation of the scientific literature. Forestry (Oxford) 64: 51–59.Google Scholar
  215. — &P. Rigg. 1990. The effect of moisture content and prechill duration on the efficiency of dormancy breakage in Sitka spruce (Picea sitchensis) seed. Seed Sci. & Technol. 18: 337–343.Google Scholar
  216. Grace, J. 1987. Climatic tolerance and distribution of plants. New Phytol. 106 (Suppl.): 113–130.Google Scholar
  217. —. 1988. Temperature as a determinant of plant productivity. Pp. 91–107in S. P. Long & F. I. Woodward (eds.), Plants and temperature. Dept. of Zoology, Univ. of Cambridge, Cambridge.Google Scholar
  218. Grace, J. D., C. Malcolm &I. K. Bradbury. 1975. The effect of wind and humidity on leaf diffusive resistance in Sitka spruce seedlings. J. Appl. Ecol. 12: 931–940.Google Scholar
  219. Grant, B. W. W., K. Shelton &H. W. Pritchard. 1983. Orthodox behaviour of oil palm seed and cryopreservation of the excised embryo for genetic conservation. Ann. Bot. (London), n.s., 52: 381–384.Google Scholar
  220. Gratkowski, H. 1974. Origin of mountain whitethorn brush fields on burns and cuttings in Pacific Northwest forests. Proc. Western Soc. Weed Sci. 27: 5–8.Google Scholar
  221. Greer, D. H. 1983. Temperature regulation of the development of frost hardiness inPinus radiata. Austral. J. Pl. Physiol. 10: 539–547.Google Scholar
  222. — &C. J. Stanley. 1985. Regulation of the loss of frost hardiness inPinus radiata by photoperiod and temperature. Pl. Cell Environ. 8: 111–116.Google Scholar
  223. — &I. J. Warrington. 1982. Effect of photoperiod, night temperature, and frost incidence on development of frost hardiness inPinus radiata. Austral. J. Pl. Physiol. 9: 333–342.Google Scholar
  224. —,C. J. Stanley &I. J. Warrington. 1989. Photoperiod control of the initial phase of frost hardiness development inPinus radiata. Pl. Cell Environ. 12: 661–665.Google Scholar
  225. Grierson, W., J. Soule &K. Kawada. 1982. Beneficial aspects of physiological stress. Hort. Rev. 4: 247–271.Google Scholar
  226. Griffin, A. R., P. Whiteman, T. Rudge, I. P. Burgess &M. Moncur. 1993. Effect of paclobutrazol on flower-bud production and vegetative growth in two species ofEucalyptus. Canad. J. Forest Res. 23: 640–647.Google Scholar
  227. Grochowska, M. J. 1973. Comparative studies on physiological and morphological features of bearing and non-bearing spurs of the apple tree, I. Changes in starch content during growth. J. Hort. Sci. 48: 347–356.Google Scholar
  228. Gucci, R., L. Lombardini &M. Tattini. 1997. Analysis of leaf water relations of two olive (Olea europaea) cultivars differing in tolerance to salinity. Tree Physiol. 17: 13–21.PubMedGoogle Scholar
  229. Guerrero, F. D. &J. E. Mullet. 1988. Reduction of turgor induces rapid changes in leaf translatable RNA. Pl. Physiol. (Lancaster) 88: 401–408.Google Scholar
  230. Guicherd, P., J. P. Peltier, E. Gout, R. Bligny &G. Marigo. 1997. Osmotic adjustment inFraxinus excelsior L.: Malate and mannitol accumulation in leaves under drought conditions. Trees 11: 155–161.Google Scholar
  231. Gusta, L. V. &C. J. Weiser. 1972. Nucleic acid and protein changes in relation to cold acclimation and freezing injury of Korean boxwood leaves. Pl. Physiol. (Lancaster) 49: 91–96.Google Scholar
  232. Gutsell, S. L. &E. A. Johnson. 1993. A heat budget model for opening of serotinous cones inPinus banksiana andPinus contorta var.latifolia. Bull. Ecol. Soc. Amer. 74(Suppl.): 261.Google Scholar
  233. Gutteridge, C. G. &I. G. Montgomerie. 1971. Survival of strawberry plants during and after cold storage. Hort. Res. (Edinburgh) 11: 52–59.Google Scholar
  234. Hahn, G. G., C. Hartley &A. S. Rhoads. 1920. Hypertrophied lenticels on roots of conifers and their relation to moisture and aeration. J. Agric. Res. 20: 253–265.Google Scholar
  235. Hale, C. R. &R. J. Weaver. 1962. The effect of developmental stage on direction of translocation of photosynthate inVitis vinifera. Hilgardia 33: 89–131.Google Scholar
  236. Hall, A. E., S. E. Camacho-B. &M. R. Kaufmann. 1975. Regulation of water loss by Citrus leaves. Physiol. Pl. 33: 62–65.Google Scholar
  237. Hall, G. C. &R. E. Farmer Jr. 1971.In vitro germination of black walnut pollen. Canad. J. Bot. 49: 799–802.Google Scholar
  238. Hance, B. A. &J. M. Bevington. 1992. Changes in protein synthesis during stratification and dormancy release in embryos of sugar maple (Acer saccharum). Physiol. Pl. 86: 365–371.Google Scholar
  239. Hänninen, H. &R. Backman. 1994. Rest break in Norway spruce seedlings: Test of a dynamic temperature response hypothesis. Canad. J. Forest Res. 24: 558–563.Google Scholar
  240. Harlow, W. M., W. A. Coté Jr. &A. C. Day. 1964. The opening mechanism of pine cone scales. J. Forest. 62: 538–540.Google Scholar
  241. Harrington, J. F. 1970. Seed and pollen storage for conservation of plant gene resources. Pp. 501–521in O. H. Frankel & E. Bennett (eds.), Genetic resources in plants: Their exploration and conservation. Blackwell, Oxford.Google Scholar
  242. —. 1972. Seed storage and longevity. Pp. 145–240in T. T. Kozlowski (ed.), Seed biology. Vol. 3. Insects, and seed collection, storage, testing, and certification. Academic Press, New York.Google Scholar
  243. Hart, M. L., J. E. Wentworth &J. P. Bailey. 1994. The effects of tree height and weather variables on recorded pollen concentration at Leicester. Grana 33: 100–103.Google Scholar
  244. Hatton, T. T., P. L. Davis, R. H. Cubbedge &K. A. Munroe. 1981. Temperature management and carbon dioxide treatments that reduce chilling injury in grapefruit stored at low temperatures, Proc. Int. Soc. Citric. 1: 728–731.Google Scholar
  245. Havaux, M. 1993. Characterization of thermal damage to the photosynthetic electron transport system in potato leaves. Pl. Sci. (Elsevier)94: 19–33.Google Scholar
  246. Heckathorn, S. A.,C. A. Downs, T. D. Sharkey &J. S. Coleman. 1998. The small, methionine-rich chloroplast heat-shock protein protects photosystem II electron transport during heat stress. Pl. Physiol. (Lancaster) 116: 439–444.Google Scholar
  247. Heide, O. M. 1993a. Daylength and thermal time responses of budburst during dormancy release in some northern deciduous trees. Physiol. Pl. 88: 531–540.Google Scholar
  248. — 1993b. Dormancy release in beech buds (Fagus sylvatica) requires both chilling and long days. Physiol. Pl. 89: 187–191.Google Scholar
  249. Hellmers, H. 1962. Physiological changes in stored pine seedlings. Tree Planter’s Notes 53: 9–10.Google Scholar
  250. Hennessey, T. C., P. Dougherty, S. Kossuth &J. Johnson (eds.). 1986. Stress physiology and forest productivity. M. Nijhoff, Dordrecht, Netherlands.Google Scholar
  251. Hewett, E. W. &C. J. Thompson. 1988. Modified atmosphere storage for reduction of bitter pit in some New Zealand apple cultivars. New Zealand J. Exp. Agric. 16: 271–278.Google Scholar
  252. Hilgeman, R. H. &W. Reuther. 1967. Evergreen tree fruits. Amer. Soc. Agron. Monogr. 11: 704–718.Google Scholar
  253. Hinckley, T. M., F. Duhme, A. R. Hinckley &H. Richter. 1980. Water relations of drought hardy shrubs: Osmotic potential and stomatal reactivity. Pl. Cell Environ. 3: 131–140.Google Scholar
  254. Hocking, D. 1972. Nursery practices in cold storage of conifer seedlings in Canada and the United States: A survey. Tree Planter’s Notes 73(2): 26–29.Google Scholar
  255. — &R. D. Nyland. 1971. Cold storage of coniferous seedlings: A review. AFRI Res. Rept. No. 6. Appl. Forest. Res. Inst., Coll. of Forestry at Syracuse, NY.Google Scholar
  256. Hook, D. D. 1984. Adaptations to flooding with fresh water. Pp. 265–294in T. T. Kozlowski (ed.), Flooding and plant growth. Academic Press, Orlando, FL.Google Scholar
  257. — &C. L. Brown. 1973. Root adaptations and relative flood tolerance of five hardwood species. Forest Sci. 19: 225–229.Google Scholar
  258. Hosner, J. F. 1962. The southern bottomland region. Pp. 296–333in J. W. Barrett (ed.), Regional silviculture of the United States. Ronald Press, New York.Google Scholar
  259. Houck, L. G., J. F. Jenner &J. Bianchi. 1990. Holding lemon fruit at 5°C or 15°C before cold treatment reduces chilling injury. HortScience 25: 1174.Google Scholar
  260. Howell, G. S. &C. J. Weiser. 1970. The environmental control of cold acclimation in apple. Pl. Physiol. (Lancaster) 45: 390–394.Google Scholar
  261. Hulbert, C., E. A. Funkhouser, E. J. Soltes &R. J. Newton. 1988. Inhibition of protein synthesis in loblolly pine hypocotyls by mannitol-induced water stress. Tree Physiol. 4: 19–26.PubMedGoogle Scholar
  262. Ibrahim, L. M., F. Proe &A. D. Cameron. 1997. Main effects of nitrogen supply, and drought stress upon whole plant carbon allocation in poplar. Canad. J. Forest Res. 27: 1413–1419.Google Scholar
  263. Ichikawa, S., K. Kaji &Y. Kubota. 1970. Studies on the storage of larch (Larix leptolepis) pollen at superlow temperatures. Bull. Hokkaido For. Exp. Sta. 8: 11.Google Scholar
  264. Ingle, M. &M. C. D’Souza. 1989. Physiology and control of superficial scald of apples: A review. HortScience 24: 28–31.Google Scholar
  265. Insley, H. &G. P. Buckley. 1985. The influence of desiccation and root pruning on the survival and growth of broadleaved seedlings. J. Hort. Sci. 60: 377–387.Google Scholar
  266. Irving, D. E. &J. H. Drost. 1987. Effects of water deficits on vegetative growth, fruit growth, and fruit quality in Cox’s Orange Pippin apple. J. Hort. Sci. 62: 427–432.Google Scholar
  267. Iwasaki, T., A. Awada &Y. Tiya. 1959. Studies on the differentiation and development of the flower bud in citrus. Bull. Tokai-Kinki Agric. Exp. Hort. Sta. 5: 1–76.Google Scholar
  268. Jackson, M. B. &W. Armstrong. 1999. Formation of aerenchyma and the processes of plant ventilation in relation to soil flooding and submergence. Pl. Biol. 1: 274–287.Google Scholar
  269. — &M. C. Drew. 1984. Effects of flooding on growth and metabolism of herbaceous plants. Pp. 47–128in T. T. Kozlowski (ed.), Flooding and plant growth. Academic Press, Orlando, FL.Google Scholar
  270. Jager, A., K. A. Strydom &J. Van Staden. 1996. The effect of ethylene, octanoic acid and a plant derived smoke extract on the germination of light sensitive lettuce seeds. Pl. Growth Regulation 19: 197–201.Google Scholar
  271. Jensen, K. F. &T. T. Kozlowski. 1975. Absorption and translocation of sulfur dioxide by seedlings of four forest tree species. J. Environ. Qual. 4: 379–381.Google Scholar
  272. Jett, J. B. &L. J. Frampton Jr. 1990. Effect of rehydration onin vitro germination of loblolly pine pollen. Southern J. Appl. Forest.14: 48–51.Google Scholar
  273. Johansson, I., C. Larsson, B. Ek &P. Kjellbom. 1996. The major integral proteins of spinach leaf plasma membranes are putative aquaporins and are phosphorylated in response to Ca2+ and apoplastic water potential. Pl. Cell 8: 1181–1191.Google Scholar
  274. —,M. Karlsson, V. K. Shukla, M. J. Chrispeels, C. Larsson &P. Kjellbom. 1998. Water transport activity of the plasma membrane aquaporin pm28a is regulated by phosphorylation. Pl. Cell 10: 451–459.Google Scholar
  275. Johnson, E. A. &S. L. Outsell. 1993. Heat budget and pine behaviour associated with the opening of serotinous cones in twoPinus species. J. Veg. Sci. 4: 745–750.Google Scholar
  276. Johnson, J. D. 1982. The effects of photoperiod during cold storage on the survival and growth of loblolly pine seedlings. Pp. 401–408in Proceedings of the 2d Biennial Southern Silvicultural Research Conference. U.S. Forest Serv., Gen. Tech. Rept. SE-24. Southeastern Forest Exp. Sta., Asheville, NC.Google Scholar
  277. — &W. K. Ferrell. 1983. Stomatal response to vapour pressure deficit and the effect of plant water stress. Pl. Cell Environ. 6: 451–456.Google Scholar
  278. Johnson, J. S. &E. A. Johnson. 1994. Opening of semi-serotinous cones ofPicea mariana by fire and ambient heating. Bull. Ecol. Soc. Amer. 75: 123.Google Scholar
  279. Joly, R. J. &J. B. Zaerr. 1987. Alteration of cell-wall water content and elasticity in Douglas-fir during periods of water deficit. Pl. Physioi. (Lancaster) 83: 418–422.Google Scholar
  280. Jones, H. G. 1987. Repeat flowering in apple caused by water stress or defoliation. Trees 1: 135–138.Google Scholar
  281. —,T. J. Flowers &M. B. Jones. 1989. Plants under stress: Biochemistry, physiology, and ecology and their application to plant improvement. Cambridge Univ. Press, Cambridge.Google Scholar
  282. Jorgensen, J. 1990. Conservation of valuable gene resources by cryopreservation in some forest tree species. J. Pl. Physiol. 136: 373–376.Google Scholar
  283. Justice, O. L. &L. N. Bass. 1978. Principles and practices of seed storage. USDA Agric. Handb. 506. U.S. Gov. Printing Office, Washington, DC.Google Scholar
  284. Kandiko, R. A., R. Timmis &J. Worrall. 1980. Pressure-volume curves of shoots and roots of normal and drought conditioned western hemlock seedlings. Canad. J. Forest Res. 10: 10–16.Google Scholar
  285. Käpyla, M. 1984. Diurnal variation of tree pollen in the air in Finland. Grana 23: 167–176.Google Scholar
  286. Katterman, F. (ed.). 1990. Environmental injury to plants. Academic Press, San Diego, CA.Google Scholar
  287. Katterman, F. 1992. Environmental injury to plants. Pp. 2: 153–162in W. A. Nierenberg (ed.), Encyclopedia of earth system science. Academic Press, San Diego, CA.Google Scholar
  288. Kawase, M. 1981. Anatomical and morphological adaptation of plants to waterlogging. HortScience 16: 30–34.Google Scholar
  289. Kays, S. J. 1991. Postharvest physiology of perishable plant products. Van Nostrand Reinhold, New York.Google Scholar
  290. Keeley, J. E. &W. J. Bond. 1997. Convergent seed germination in South African fynbos and Californian chaparral. Pl. Ecol. 133: 153–167.Google Scholar
  291. — &C. J. Fotheringham. 1997. Trace gas emissions and smoke induced seed germination. Science 276: 1248–1250.Google Scholar
  292. ——. 1998. Smoke induced seed germination in California chaparral. Ecology 79: 2320–2336.Google Scholar
  293. — &P. H. Zedler. 1978. Reproduction of chaparral shrubs after fire: A comparison of sprouting and seeding strategies. Amer. Midl. Naturalist 99: 142–161.Google Scholar
  294. Kellomaki, S. &K. Y. Wang. 1996. Photosynthetic responses to needle water potentials in Scots pine after a four year exposure to elevated CO2 and temperature. Tree Physioi. 16: 765–772.Google Scholar
  295. Keyes, M. R. &C. C. Grier. 1981. Aboveand below-ground net production in 40-year-old Douglas-fir stands on low and high productivity sites. Canad. J. Forest Res. 11: 599–605.Google Scholar
  296. Khairi, M. M. A. &A. E. Hall. 1976a. Temperature and humidity effects on net photosynthesis and transpiration of citrus. Physioi. Pl. 36: 29–34.Google Scholar
  297. ——. 1976b. Comparative studies of net photosynthesis and transpiration of some citrus species and relatives. Physioi. Pl. 36: 35–39.Google Scholar
  298. Kimmerer, T. W. &T. T. Kozlowski. 1981. Stomatal conductance and sulfur uptake of five clones ofPopulus tremuloides exposed to sulfur dioxide. Pl. Physioi. (Lancaster) 67: 990–995.Google Scholar
  299. King, J. R. 1961. The freeze-drying of pollens. Econ. Bot. 15: 91–98.Google Scholar
  300. King, M. W. &E. H. Roberts. 1979. The storage of recalcitrant seeds: Achievements and possible approaches. Int. Board for Pl. Genet. Resources, Rome.Google Scholar
  301. Klein, J. D., W. S. Conway, B. D. Whitaker &C. E. Sams. 1997.Botrytis cinerea decay in apples is inhibited by postharvest heat and calcium treatments. J. Amer. Soc. Hort. Sci. 122: 91–94.Google Scholar
  302. Knee, M. &S. G. S. Hatfield. 1981. Benefits of ethylene removal during apple storage. Ann. Appl. Biol. 98: 157–165.Google Scholar
  303. Kobayashi, K. D., L. H. Fuchigami &M. J. English. 1982. Modeling temperature requirements for rest development inCornus sericea. J. Amer. Soc. Hort. Sci. 107: 914–918.Google Scholar
  304. Koppenaal, R. S., T. J. Tschaplinski &S. J. Colombo. 1991. Carbohydrate accumulation and turgor maintenance in seedling shoots and roots of two boreal forest conifers subjected to water stress. Canad. J. Bot. 69: 2522–2528.Google Scholar
  305. Kozlowski, T. T. 1964. Water metabolism in plants. Harper & Row, New York.Google Scholar
  306. -. 1967. Physiological implications in afforestation. Pp. 2: 1304–1316in Proceedings of the 6th World Forestry Congress.Google Scholar
  307. —. 1972a. Shrinking and swelling of plant tissues. Pp. 1–64in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 3. Plant responses and control of water balance. Academic Press, New York.Google Scholar
  308. —. 1972b. Physiology of water stress. Pp. 229–244in C. M. McKell, J. P. Blaisdell & J. R. Goodin (eds.), Wildland shrubs: Their biology and utilization. U.S. Forest Serv., Gen. Tech. Rept. INT-1. Intermountain Forest & Range Exp. Sta., Ogden, UT.Google Scholar
  309. —. 1976a. Drought resistance and transplantability of shade trees. Pp. 77–90in F. S. Santamour, H. Gerhold & S. Little (eds.), Better trees for metropolitan landscapes. U.S. Forest Serv., Gen. Tech. Rept. NE-22. Northeast Forest Exp. Sta., Newtown Square, PA.Google Scholar
  310. —. 1976b. Water relations and tree improvement. Pp. 307–327in M. G. R. Cannell & F. T. Last (eds.), Tree physiology and yield improvement. Academic Press, New York.Google Scholar
  311. —. 1978. How healthy plants grow. Pp. 19–51in J. G. Horsfall & E. B. Cowling (eds.), Plant disease: An advanced treatise. Vol. 3. How plants suffer from diseases. Academic Press, New York.Google Scholar
  312. — 1979. Tree growth and environmental stresses. Univ. of Washington Press, Seattle.Google Scholar
  313. —. 1980. Impacts of air pollution on forest ecosystems. BioScience 30: 88–93.Google Scholar
  314. —. 1982a. Water supply and tree growth, Part I. Water deficits. Forest. Abstr. 43: 57–95.Google Scholar
  315. —. 1982b. Water supply and tree growth, Part II. Flooding. Forest. Abstr. 43: 145–161.Google Scholar
  316. —. 1983. Reduction in yield of forest and fruit trees by water and temperature stress. Pp. 67–88in C. D. Raper & P. J. Kramer (eds.), Crop reactions to water and temperature stresses in humid, temperate climates. Westview Press, Boulder, CO.Google Scholar
  317. —. 1984. Responses of woody plants to flooding. Pp. 129–163in T. T. Kozlowski (ed.), Flooding and plant growth. Academic Press, Orlando, FL.Google Scholar
  318. —. 1992. Carbohydrate sources and sinks in woody plants. Bot. Rev. (Lancaster) 58: 107–222.Google Scholar
  319. -. 1997. Responses of woody plants to flooding and salinity. Tree Physiol. Monogr. No. 1.http: //www.heronpublishing.com/tp/monograph/kozlowski.pdf.
  320. — &H. A. Constantinidou. 1986a. Responses of woody plants to environmental pollution, Part I. Sources, types of pollutants, and plant responses. Forest. Abstr. 47: 5–51.Google Scholar
  321. ——. 1986b. Responses of woody plants to environmental pollution, Part II. Factors affecting responses to pollution. Forest. Abstr. 47: 105–132.Google Scholar
  322. — &S. G. Pallardy. 1979. Stomatal responses ofFraxinus pennsylvanica seedlings during and after flooding. Physiol. Pl. 46: 155–158.Google Scholar
  323. ——. 1984. Effect of flooding on water, carbohydrate and mineral relations. Pp. 165–193in T. T. Kozlowski (ed.), Flooding and plant growth. Academic Press, Orlando, FL.Google Scholar
  324. ——. 1997a. Physiology of woody plants. Ed. 2. Academic Press, San Diego, CA.Google Scholar
  325. ——. 1997b. Growth control in woody plants. Academic Press, San Diego, CA.Google Scholar
  326. —,P. J. Kramer &S. G. Pallardy. 1991. The physiological ecology of woody plants. Academic Press, San Diego, CA.Google Scholar
  327. Kramer, P. J. &J. S. Boyer. 1995. Water relations of plants and soils. Academic Press, San Diego, CA.Google Scholar
  328. Kriedemann, P. E. &H. D. Barrs. 1981. Citrus orchards. Pp. 325–417in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 6. Woody plant communities. Academic Press, New York.Google Scholar
  329. —,B. R. Loveys, G. L. Fuller &A. C. Leopold. 1972. Abscisic acid and stomatal regulation. Pl. Physiol. (Lancaster) 79: 842–847.Google Scholar
  330. Kubiske, M. E. &M. D. Abrams. 1993. Stomatal and nonstomatal limitations of photosynthesis in 19 temperate tree species on contrasting sites during wet and dry years. Pl. Cell Environ. 16: 1123–1129.Google Scholar
  331. Kuhns, M. R., W. W. Stroup &G. M. Gebre. 1993. Dehydration tolerance of 5 bur oak (Quercus macrocarpa) seed sources from Texas, Nebraska, Minnesota, and New York. Canad. J. Forest Res. 23: 387–393.Google Scholar
  332. Kulkarni, V. J. 1988. Chemical control of tree vigour and the promotion of flowering and fruiting in mango (Mangifera indica L.) using paclobutrazol. J. Hort. Sci. 63: 557–566.Google Scholar
  333. Kurian, R. M. &C. P. A. Iyer. 1993a. Chemical regulation of tree size in mango (Mangifera indica L.) cv.Alphonso, II. Effects of growth retardants on flowering and fruit set. J. Hort. Sci. 68: 355–360.Google Scholar
  334. Kurian, R. M. &C. P. A. Iyer. 1993b. Chemical regulation of tree size in mango (Mangifera indica L.) cv.Alphonso, III. Effects of growth retardants on yield and quality of fruits. J. Hort. Sci. 68: 361–364.Google Scholar
  335. Kwon, K. W. &S. G. Pallardy. 1989. Temporal changes in tissue water relations of seedlingsof Quercus acutissima, Q. alba, andQ. stellata subjected to chronic water stress. Canad. J. Forest Res. 19: 622–626.Google Scholar
  336. Lakso, A. N. 1979. Seasonal changes in stomatal response to leaf water potential in apple. J. Amer. Soc. Hort. Sci. 104: 58–60.Google Scholar
  337. —,A. S. Geyer &S. G. Carpenter. 1984. Seasonal osmotic relations in apple leaves of different ages. J. Amer. Soc. Hort. Sci. 109: 541–547.Google Scholar
  338. Lamont, B. B. &M. J. Barker. 1988. Seed bank dynamics of a serotinous, fire-sensitiveBanksia species. Austral. J. Bot. 36: 193–204.Google Scholar
  339. —,D. C. LeMaitre, R. M. Cowling &N. J. Enright. 1991. Canopy seed storage in woody plants. Bot. Rev. (Lancaster) 57: 277–317.Google Scholar
  340. Lampinen, B. D., K. A. Shackel, S. M. Southwick, B. Olson &J. T. Yeager. 1995. Sensitivity of yield and fruit quality of French prune to water deprivation at different growth stages. J. Amer. Soc. Hort. Sci. 120: 139–147.Google Scholar
  341. Landsberg, J. J. &H. G. Jones. 1981. Apple orchards. Pp. 419–469in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 6. Woody plant communities. Academic Press, New York.Google Scholar
  342. Lang, G. A. 1989. Dormancy: Models and manipulations of environmental/physiological regulation. Pp. 79–98in C. J. Wright (ed.), Manipulation of fruiting. Butterworths, London.Google Scholar
  343. —,J. D. Early, N. J. Arroyave, R. L. Darnell, G. C. Martin &G. W. Stutte. 1985. Dormancy: Toward a reduced universal terminology. HortScience 20: 809–812.Google Scholar
  344. Lanteri, S., P. Belletti &S. Lotito. 1993. Storage of pollen of Norway spruce and different pine species. Silvae Genet. 42: 104–109.Google Scholar
  345. Larcher, W. 1995. Physiologícal plant ecology: Ecophysiology and stress physiology of functional groups. Ed. 3. Springer-Verlag, Berlin.Google Scholar
  346. Larson, K. D., T. M. DeJong &R. S. Johnson. 1988. Physiological growth responses of mature peach trees to postharvest water stress. J. Amer. Soc. Hort. Sci. 113: 296–300.Google Scholar
  347. —,B. Schaffer &F. S. Davies. 1991. Flooding, leaf gas exchange and growth of mango in containers. J. Amer. Soc. Hort. Sci. 116: 156–160.Google Scholar
  348. Lavender, D. P. 1985. Bud dormancy. Pp. 7–15in M. L. Duryea (ed.), Evaluating seedling quality: Principles and predictive abilities of major tests. Forest Res. Lab., Oregon State Univ., Corvallis, OR.Google Scholar
  349. — &S. G. Stafford. 1985. Douglas-fir seedlings: Some factors affecting chilling requirement, bud activity, and new foliage production. Canad. J. Forest Res. 15: 309–312.Google Scholar
  350. — &P. F. Wareing. 1972. Effects of daylength and chilling on the responses of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings to root damage and storage. New Phytol. 71: 1055–1071.Google Scholar
  351. Lee, C. W., J. C. Thomas &S. L. Buchmann. 1985. Factors affectingin vitro germination and storage ofJojoba-Simmondsia chinensis pollen. J. Amer. Soc. Hort. Sci. 110: 671–676.Google Scholar
  352. Lemcoff, J. H., A. B. Guarnaschelli, A. M. Garau, M. E. Bascialli &C. M. Ghersa. 1994. Osmotic adjustment and its use as a selection criterion inEucalyptus seedlings. Canad. J. Forest Res. 24: 2404–2408.Google Scholar
  353. Lev-Yadun, S. 1995. Living serotinous cones inCupressus sempervirens. Int. J. PI. Sci. 156: 50–54.Google Scholar
  354. Levitt, J. 1980. Responses of plants to environmental stresses. Ed. 2. 2 vols. Academic Press, New York.Google Scholar
  355. Li, J. X., X. Q. Wang, M. B. Watson &S. M. Assmann. 2000. Regulation of abscisic acid-induced stomatal closure and anion channels by guard cell AAPK kinase. Science 287: 300–303.PubMedGoogle Scholar
  356. Li, S.-H., J.-G. Huguet, P. G. Schoch &P. Orlando. 1989. Response of peach tree growth and cropping to soil water deficit at various phenological stages of fruit development. J. Hort. Sci. 64: 541–552.Google Scholar
  357. Ligon, F. K., W. E. Dietrich &W. J. Thrush. 1995. Downstream ecological effects of dams. BioScience 45: 183–192.Google Scholar
  358. Lin, T.-P. 1996. Seed storage behaviour deviating from the orthodox and recalcitrant type. Seed Sci. & Technol. 24: 523–532.Google Scholar
  359. —,M.-H. Chen &C.-H. Lin. 1994. Dormancy in seeds ofPhellodendron wilsonii is mediated in part by abscisic acid. Pl. Cell Physiol. 35: 115–119.Google Scholar
  360. Little, E. L., Jr. &K. W. Dorman. 1952. Geographic differences in cone-opening in sand pine. J. Forest. 50: 204–205.Google Scholar
  361. Livingston, G. G. &K. K. Ching. 1967. The longevity and fertility of freeze-dried Douglas-fir pollen. Silvae Genet. 16: 98–101.Google Scholar
  362. Logan, B. A. &R. K. Monson. 1999. Thermotolerance of leaf discs from four isoprene-emitting species is not enhanced by exposure to exogenous isoprene. Pl. Physiol. (Lancaster) 120: 821–825.Google Scholar
  363. Loreto, F. &T. D. Sharkey. 1990. A gas-exchange study of photosynthesis and isoprene emission inQuercus rubra L. Planta 182: 523–531.Google Scholar
  364. Lösch, R. &B. Schenk. 1978. Humidity response of stomata and the potassium content of guard cells. J. Exp. Bot. 29: 781–787.Google Scholar
  365. Lotan, J. E. 1967. Cone serotiny of lodgepole pine near West Yellowstone, Montana. Forest Sci. 13: 55–59.Google Scholar
  366. —. 1976. Cone serotiny: Fire relationships in lodgepole pine. Proc. Tall Timbers Fire Ecol. Conf. 14: 267–278.Google Scholar
  367. Lurie, S., J. D. Klein &R. B. Arie. 1991. Prestorage heat treatment delays development of superficial scald on Granny Smith apples. HortScience 26: 166–167.Google Scholar
  368. Lyons, J. M. &R. W. Breidenbach. 1987. Chilling injury. Pp. 305–326in J. Weichmann (ed.), Postharvest physiology of vegetables. M. Dekker, New York.Google Scholar
  369. Maggs, D. H. 1963. The reduction in growth of apple trees brought about by fruiting. J. Hort. Sci. 38: 119–128.Google Scholar
  370. Maier-Maercker, U. 1998. Dynamics of change in stomatal response and water status ofPicea abies during a persistent drought period: A contribution to the traditional view of plant water relations. Tree Physiol. 18: 211–222.PubMedGoogle Scholar
  371. Mansfield, T. A. &W. J. Davies. 1981. Stomata and stomatal mechanisms. Pp. 315–346in L. G. Paleg & D. Aspinall (eds.), The physiology and biochemistry of drought resistance in plants. Academic Press, Sydney, Australia.Google Scholar
  372. — &O. Majernik. 1970. Can stomata play a part in protecting plants against air pollutants? Environ. Pollut. 1: 149–154.Google Scholar
  373. Marsal, J. &J. Girona. 1997. Effects of water stress cycles on turgor maintenance processes in pear leaves. Tree Physiol. 17: 327–333.PubMedGoogle Scholar
  374. Marschner, H. 1995. Mineral nutrition of higher plants. Ed. 2. Academic Press, London.Google Scholar
  375. Marshall, J. G., J. B. Scarratt &E. B. Dumbroff. 1991. Induction of drought resistance by abscisic acid and paclobutrazol in jack pine. Tree Physiol. 8: 415–421.Google Scholar
  376. Martin, U., S. G. Pallardy &Z. A. Bahari. 1987. Dehydration tolerance of leaf tissues of six woody angiosperm species. Physiol. Pl. 69: 182–186.Google Scholar
  377. Matthews, F. R. &J. F. Kraus. 1981. Pollen storage. Pp. 37–39in E. C. Franklin (ed.), Pollen management handbook. USDA Handbook No. 587. U.S. Gov. Printing Office, Washington, DC.Google Scholar
  378. Mattson, A. &E. Troeng. 1986. Effects of different overwinter storage regimes on shoot growth and net photosynthetic capacity inPinus sylvestris seedlings. Scand. J. Forest Res. 1: 75–84.Google Scholar
  379. Maurel, C. 1997. Aquaporins and water permeability of plant membranes. Annual Rev. Pl. Physiol. Pl. Molec. Biol. 48: 399–429.Google Scholar
  380. McBride, J. R. &J. Strahan. 1984. Establishment and survival of woody riparian species on gravel bars of an intermittent stream. Amer. Midl. Naturalist 112: 235–245.Google Scholar
  381. McCracken, I. J. 1979a. Changes in the carbohydrate concentration of pine seedlings after cool storage. New Zealand J. Forest Sci. 9: 34–43.Google Scholar
  382. —. 1979b. Packaging and cool storage of tree seedlings. New Zealand J. Forest. 24: 278–287.Google Scholar
  383. McKersie, B. D. &Y. Y. Leshem. 1994. Stress and stress coping in cultivated plants. Kluwer, Dordrecht, Netherlands.Google Scholar
  384. McLaughlin, J. M. &D. W. Greene. 1991. Fruit and hormones influence flowering of apple, I. Effect of cultivar. J. Amer. Soc. Hort. Sci. 116: 446–449.Google Scholar
  385. McMaster, G. S. &P. H. Zedler. 1981. Delayed seed dispersal inPinus torreyana (Torrey pine). Oecologia 51: 62–66.Google Scholar
  386. Meier, C. E., R. J. Newton, J. D. Puryear &S. Sen. 1992. Physiological responses of loblolly pine (Pinus taeda L.) seedlings to drought stress: Osmotic adjustment and tissue elasticity. J. Pl. Physiol. 140: 754–760.Google Scholar
  387. Meinzer, F. C. 1982. The effect of vapor pressure on stomatal control of gas exchange in Douglas fir (Pseudotsuga menziesii) saplings. Oecologia 54: 236–242.Google Scholar
  388. T. M. Hinckley &R. Ceulemans. 1997. Apparent responses of stomata to transpiration and humidity in a hybrid poplar canopy. Pl. Cell Environ. 20: 1301–1308.Google Scholar
  389. Menzel, C. M. 1983. The control of floral initiation in lychee: A review. Sci. Hort. 21: 201–215.Google Scholar
  390. — &D. R. Simpson. 1990. Effect of environment on growth and flowering of lychee (Litchi chinensis Sonn.). Acta Hort. 275: 161–166.Google Scholar
  391. Mexal, J. G. &D. B. South. 1991. Bareroot seedling culture. Pp. 89–115in M. L. Duryea & P. M. Dougherty (eds.), Forest regeneration manual. Kluwer, Dordrecht, Netherlands.Google Scholar
  392. —,R. Timmis &W. G. Morris. 1979. Coldhardiness of containerized loblolly pine seedlings: Its effect on field survival and growth. Southern J. Appl. Forest. 3: 15–19.Google Scholar
  393. Mitchell, P. D., P. H. Jerie &D. J. Chalmers. 1984. The effects of regulated water deficits on pear tree growth, flowering, fruit growth and yield. J. Amer. Soc. Hort. Sci. 109: 604–606.Google Scholar
  394. —,D. J. Chalmers, P. H. Jerie &G. Burge. 1986. The use of initial withholding of irrigation and tree spacing to enhance the effect of regulated deficit irrigation in pear trees. J. Amer. Soc. Hort. Sci. 111: 854–864.Google Scholar
  395. Mitchum, E. J. &Y. M. Wu. 1993. Prestorage heat treatments for scald control in apples. HortScience 28: 85.Google Scholar
  396. Mochizuki, T. 1962. Studies on the elucidation of factors affecting the decline in tree vigor in apples as induced by fruit load. Bull. Fac. Agric, Hirosaki Univ. 8: 40–124.Google Scholar
  397. Moline, H. E. (ed.). 1984. Postharvest pathology of fruits and vegetables: Postharvest losses in perishable crops. Agric. Exp. Sta., Div. of Agric. & Nat. Resources., Univ. of California, Berkeley.Google Scholar
  398. Monselise, S. P. &A. H. Halevy. 1964. Chemical inhibition and promotion of citrus flower bud induction. Proc. Amer. Soc. Hort. Sci. 84: 141–146.Google Scholar
  399. Monson R. K &R. Fall. 1989. Isoprene emission from aspen leaves. The influence of environment and relation to photosynthesis and photorespiration. Pl. Physiol. (Lancaster) 90: 267–274.Google Scholar
  400. Monteith, J. L. 1995. A reinterpretation of stomatal responses to humidity. Pl. Cell Environ. 18: 357–364.Google Scholar
  401. Moody, R. W. &J. B. Jett. 1990. Effects of pollen viability and vigor on seed production of loblolly pine. Southern J. Appl. Forest. 14: 33–38.Google Scholar
  402. Mooney, H. A., W. E. Winner &E. J. Pell (eds.). 1991. Response of plants to multiple stresses. Academic Press, San Diego, CA.Google Scholar
  403. Moreno-Casasola, P., J. P. Grime &M. I. Martinez. 1994. A comparative study of the effects of fluctuations in temperature and moisture supply on hard coat dormancy in seeds of coastal tropical legumes in Mexico. J. Trop. Ecol. 10: 67–86.Google Scholar
  404. Mori, I. C, N. Uozumi &S. Muto. 2000. Phosphorylation of the inward-rectifying potassium channel KAT1 by ABR kinase inVicia guard cells. Pl. Cell Physiol. 41: 850–856.Google Scholar
  405. Morris, L. L. 1982. Chilling injury of horticultural crops: An overview. HortScience 17: 161–162.Google Scholar
  406. Morse, S. R., P. Wayne, S. L. Miao &F. A. Bazzaz. 1993. Elevated CO2 and drought alter tissue water relations of birch (Betula populifolia Marsh.) seedlings. Oecologia 95: 599–602.Google Scholar
  407. Mott, K. A. &D. F. Parkhurst. 1991. Stomatal responses to humidity in air and helox. Pl. Cell Environ. 14: 509–515.Google Scholar
  408. Muir, P. S. &J. E. Lotan. 1985a. Disturbance history and serotiny ofPinus contorta in western Montana. Ecology 66: 1658–1668.Google Scholar
  409. —— 1985b. Serotiny and life-history ofPinus contorta var.latifolia. Canad. J. Bot. 63: 938–945.Google Scholar
  410. Mullin, R. E. 1966. Overwinter storage of baled nursery stock in northern Ontario. Commonw. Forest. Rev. 45: 224–230.Google Scholar
  411. Murata, K., K. Mitsuoka, T. Hirai, T. Walz, P. Agre, J. B. Heymann, A. Engel &Y. Fujiyoshi. 2000. Structural determinants of water permeation through aquaporin 1. Nature 407: 599–605.PubMedGoogle Scholar
  412. Muthalif, M. M. &L. J. Rowland. 1994. Identification of dehydrin like proteins responsive to chilling in floral buds of blueberry (Vaccinium, sectionCyanococcus). Pl. Physiol. (Lancaster) 104: 1439–1447.Google Scholar
  413. Myers, B. A. &T. F. Neales. 1986. Osmotic adjustment induced by drought in seedlings of threeEucalyptus species. Austral. J. Pl. Physiol. 13: 597–604.Google Scholar
  414. Naiman, R. J., R. E. Bilby &P. A. Bisson. 2000. Riparian ecology and management in the Pacific coastal rain forest. BioScience 50: 996–1011.Google Scholar
  415. Nelson, E. A. &D. P. Lavender. 1979. The chilling requirement of western hemlock seedlings. Forest Sci. 25: 485–490.Google Scholar
  416. Newsome, R. D., T. T. Kozlowski &Z. C. Tang. 1982. Responses ofUlmus americana seedlings to flooding of soil. Canad. J. Bot. 60: 1688–1695.Google Scholar
  417. Nguyen, A. &A. Laniont. 1989. Variation in growth and osmotic regulation of roots of water-stressed maritime pine (Pinus pinaster Ait.) provenances. Tree Physiol. 5: 123–133.PubMedGoogle Scholar
  418. Ni, B. R. &S. G. Pallardy. 1992. Stomatal and nonstomatal limitations to net photosynthesis in seedlings of woody angiosperms. Pl. Physiol. (Lancaster) 99: 1502–1508.Google Scholar
  419. Nilsson, J. E. &G. Eriksson. 1986. Freeze testing and field mortalityof Pinus sylvestris (L.) seedlings in northern Sweden. Scand. J. Forest Res. 1: 205–218.Google Scholar
  420. Nir, I., R. Goren &B. Leshem. 1972. Effects of water stress, gibberellic acid and 2-chloroethyl triethylammonium chloride (CCC) on flower differentiation in Eureka lemon trees. J. Amer. Soc. Hort. Sci. 97: 774–778.Google Scholar
  421. Noland, T. L. &T. T. Kozlowski. 1979. Influence of potassium nutrition on susceptibility of silver maple to ozone. Canad. J. Forest Res. 9: 501–503.Google Scholar
  422. Norby, R. J. &T. T. Kozlowski. 1982. The role of stomata in sensitivity ofBetula papyrifera Marsh. seedlings to SO2 at different humidities. Oecologia 53: 34–39.Google Scholar
  423. ——. 1983. Flooding and SO2-stress interaction inBetula papyrifera andB. nigra seedlings. Forest Sci. 29: 739–750.Google Scholar
  424. O’Mahony, P. J. &M. J. Oliver. 1999. The involvement of ubiquitin in vegetative desiccation tolerance. Pl. Molec. Biol. 41: 657–667.Google Scholar
  425. Office of Technology Assessment 1984. Wetlands: Their use and regulation. Gov. Printing Office, Washington, DC. OTA-O-206.Google Scholar
  426. Omi, S. K., R. Rose &T. E. Sabine. 1991a. Effectiveness of freezer storage in fulfilling the chilling requirement of fall-lifted ponderosa pine seedlings. New Forests 5: 307–326.Google Scholar
  427. —,B. Yoder &R. Rose. 1991b. Fall lifting and long-term freezer storage of ponderosa pine seedlings: Effects on post-storage leaf water potential, stomatal conductance, and root growth potential. Tree Physiol. 8: 315–325.PubMedGoogle Scholar
  428. Osborne, D. J. 1980. Senescence in seeds. Pp. 13–37in K. V. Thimann (ed.), Senescence in plants. CRC Press, Boca Raton, FL.Google Scholar
  429. Osonubi, O. &W. J. Davies. 1978. Solute accumulation in leaves and roots of woody plants subjected to water stress. Oecologia 32: 323–332.Google Scholar
  430. Pallardy, S. G. &T. T. Kozlowski. 1979. Relationships of leaf diffusion resistance ofPopulus clones to leaf water potential and environment. Oecologia 40: 371–380.Google Scholar
  431. ——. 1981. Water relationsoiPopulus clones. Ecology 62: 159–169.Google Scholar
  432. —,W. C. Parker, R. K. Dixon &H. E. Garrett. 1982. Tissue water relations of roots and shoots of draughted ectomycorrhizal shortleaf pine seedlings. Pp. 368–373in B. A. Thielges (ed.), Proceedings of the Seventh North American Forest Biology Workshop. Univ. of Kentucky, Lexington.Google Scholar
  433. Parfitt, D. E. &A. A. Almehdi. 1983. Cryogenic storage of grape pollen. Amer. J. Enol. Viticult. 34: 227–228.Google Scholar
  434. ——. 1984a. Liquid nitrogen storage of pollen from five cultivatedPrunus species. HortScience 19: 69–70.Google Scholar
  435. ——. 1984b. Cryogenic storage of olive pollen. Fruit Varieties J. 38: 14–16.Google Scholar
  436. Parker, D., D. Ziberman &K. Moulton. 1991. How quality relates to price in California fresh peaches. Calif. Agric. 45(2): 14–16.Google Scholar
  437. Parker, W. C. &S. G. Pallardy. 1985. Genotypic variation in tissue water relations of leaves and roots of black walnut (Juglans nigra) seedlings. Physiol. PL 64: 105–110.Google Scholar
  438. ——. 1988. Pressure-volume analysis of leaves ofRobinia pseudoacacia L. with the sap expression and free transpiration methods. Canad. J. Forest Res. 18: 1211–1213.Google Scholar
  439. ——,T. M. Hinckley &R. O. Teskey. 1982. Seasonal changes in tissue water relations of three woody species of theQuercus-Carya forest type. Ecology 63: 1259–1268.Google Scholar
  440. Peltier, J. P. &G. Marigo. 1999. Drought adaptation inFraxinus excelsior L.: Physiological basis of the elastic adjustment. J. PL Physiol. 154: 529–535.Google Scholar
  441. Pence, V. C. 1995. Cryopreservation of recalcitrant seeds. Pp. 29–50in Y. P. S. Bajaj (ed.), Biotechnology in agriculture and forestry. Vol. 32. Cryopreservation of germplasm I. Springer-Verlag, New York.Google Scholar
  442. Pereira, J. S. &T. T. Kozlowski. 1977. Variations among woody angiosperms in response to flooding. Physiol. Pl. 41: 184–192.Google Scholar
  443. Perry, D. A. &J. E. Lotan. 1979. A model of fire selection for serotiny in lodgepole pine. Evolution 33: 958–960.Google Scholar
  444. Perry, T. O. 1971. Dormancy of trees in winter. Science 171: 29–36.PubMedGoogle Scholar
  445. — &C. W. Wang. 1960. Genetic variation in the winter chilling requirement for date of dormancy break forAcer rubrum. Ecology 41: 790–794.Google Scholar
  446. Pezeshki, S. R. 1993. Differences in patterns of photosynthetic responses to hypoxia in flood-tolerant and flood-sensitive tree species. Photosynthetica 28: 423–430.Google Scholar
  447. — &J. L. Chambers. 1985a. Stomatal and photosynthetic response of sweet gum (Liquidambar styraciflua) to flooding. Canad. J. Forest Res. 15: 371–375.Google Scholar
  448. ——. 1985b. Responses of cherrybark oak (Quercus falcata var.pagodaefolia) seedlings to short-term flooding. Forest Sci. 31: 760–771.Google Scholar
  449. —,J. H. Pardue &R. D. De Laune. 1996. Leaf gas exchange and growth of flood-tolerant and flood-sensitive tree species under low soil redox conditions. Tree Physiol. 16: 453–458.PubMedGoogle Scholar
  450. Pfundt, M. 1909. Der Einfluss der Luftfeuchtigkeit auf die Lebensdauer des Blütenstaubes. Jahrb. Wiss. Bot. 47: 1–40.Google Scholar
  451. Piringer, A. A. &H. A. Borthwick. 1955. Photoperiodic responses in coffee. Turrialba 5: 72–77.Google Scholar
  452. Poff, I. R., J. D. Allan, M. B. Bain, J. R. Karr, K. L. Prestegaard, B. D. Richter, R. E. Sparks &J. C. Stromberg. 1997. The natural flow regime. BioScience 47: 769–784.Google Scholar
  453. Pollock, M. M., R. J. Naiman &T. A. Hanley. 1998. Plant species richness in forested and emergent wetlands: A test of biodiversity theory. Ecology 79: 94–105.Google Scholar
  454. Poole, D. K. &P. C. Miller. 1978. Water related characteristics of some evergreen sclerophyll shrubs in central Chile. Oecol. Pl. 13: 289–299.Google Scholar
  455. Portlock, C. C., S. R. Shea, J. D. Majer &D. T. Bell. 1990. Stimulation of germination ofAcer pulchella: Laboratory basis for forest management options. J. Appl. Ecol. 27: 319–324.Google Scholar
  456. Powell, G. R. 1977. Biennial strobilus production in balsam fir: A review of its morphogenesis and a discussion of its apparent physiological basis. Canad. J. Forest Res. 7: 547–555.Google Scholar
  457. Priestley, D. A. 1986. Seed aging: Implications for seed storage and persistence in the soil. Comstock Associates, Ithaca, NY.Google Scholar
  458. Pritchard, J. 1994. Tansley review no. 68: The control of cell expansion in roots. New Phytol. 127: 3–26.Google Scholar
  459. — &A. D. Tomos. 1993. Correlating biophysical and biochemical control of root expansion. Pp. 53–72in J. A. C. Smith & H. Griffiths (eds.), Water deficits: Plant responses from cell to community. Bios Scientific Publishers, Oxford.Google Scholar
  460. Pukacka, S. &P. J. C. Kuiper. 1988. Phospholipid composition and fatty acid peroxidation during ageing ofAcer platanoides seeds. Physiol. Pl. 72: 89–93.Google Scholar
  461. Putnam, J. A., G. M. Furnival &J. S. McKnight. 1960. Management and inventory of southern hardwoods. U.S. Forest Serv. Agric. Handb. 181.Google Scholar
  462. Queitsch, C., S. W. Hong, E. Vierling &S. Lindquist. 2000. Heat shock protein 101 plays a crucial role in thermotolerance inArabidopsis. Pl. Cell 12: 479–492.Google Scholar
  463. Rao, I. M., R. E. Sharp &J. S. Boyer. 1987. Leaf magnesium alters photosynthetic response to low water potentials in sunflower. Pl. Physiol. (Lancaster) 84: 1214–1219.Google Scholar
  464. Rasmussen, R. A. 1970. Isoprene: Identified as a forest-type emission to the atmosphere. Environm. Sci. Tech. 4: 667–671.Google Scholar
  465. Regehr, D. L., F. A. Bazzaz &W. R. Boggess. 1975. Photosynthesis, transpiration and leaf conductance ofPopulus deltoides in relation to flooding and drought. Photosynthetica 9: 52–61.Google Scholar
  466. Reich, P. B. &R. Borchert. 1984. Water stress and tree phenology in a tropical dry forest in the lowlands of Costa Rica. J. Ecol. 72: 61–74.Google Scholar
  467. Reid, D. M. &K. J. Bradford. 1984. Effects of flooding on hormone relations. Pp. 195–219in T. T. Kozlowski (ed.), Flooding and plant growth. Academic Press, Orlando, FL.Google Scholar
  468. Richardson, C. J. 1995. Wetlands ecology. Pp. 3: 535–550in W. A. Nierenberg (ed.), Encyclopedia of environmental biology. Academic Press, San Diego, CA.Google Scholar
  469. Richardson, E. A., S. D. Seeley &D. R. Walker. 1974. A model for estimating the completion of rest for Redhaven and Elberta peach trees. HortScience 9: 331–332.Google Scholar
  470. Rieger, M. 1995. Offsetting effects of reduced hydraulic conductivity and osmotic adjustment following drought. Tree Physiol. 15: 379–385.PubMedGoogle Scholar
  471. Ritchie, G. A. 1982. Carbohydrate reserves and root growth potential in Douglas fir seedlings before and after cold storage. Canad. J. Forest Res. 12: 905–912.Google Scholar
  472. —. 1984. Effect of freezer storage on bud dormancy release in Douglas fir seedlings. Canad. J. Forest Res. 14: 186–190.Google Scholar
  473. —. 1987. Some effects of cold storage on seedling physiology. Tree Planter’s Notes. 38: 11–15.Google Scholar
  474. —,J. R. Roden &N. Kleyn. 1985. Physiological quality of lodgepole pine and interior spruce seedlings: Effect of lift date and duration of freezer storage. Canad. J. Forest Res. 15: 636–645.Google Scholar
  475. Roberts, D. P., P. Toivonen &S. M. Mclnnis. 1991. Discrete proteins associated with overwintering of interior spruce and Douglas fir seedlings. Canad. J. Bot. 69: 437–441.Google Scholar
  476. Roberts, E. H. 1973. Predicting the storage life of seeds. Seed Sci. & Technol. 1: 499–514.Google Scholar
  477. -& M. W. King. 1980. Storage of recalcitrant seeds. Pp. 39–48in L. A. Withers & J. T. Williams (eds.), Crop genetic resources: The conservation of difficult material. Int. Union Biol. Sciences, Series B 42.Google Scholar
  478. — &R. H. Ellis. 1984. Recalcitrant seeds: Their recognition and storage. Pp. 38–52in J. H. W. Holden & J. T. Williams (eds.), Crop genetic resources: Conservation and evaluation. Allen & Unwin, London.Google Scholar
  479. Roberts, S. W., B. R. Strain &K. R. Knoerr. 1980. Seasonal patterns of leaf water relations in four cooccurring forest tree species: Parameters from pressure-volume curves. Oecologia 46: 330–337.Google Scholar
  480. Robertson, P. A., G. T. Weaver &J. A Cavanaugh. 1978. Vegetation and tree species patterns near the northern terminus of southern floodplain forest. Ecol. Monogr. 48: 249–267.Google Scholar
  481. Ronco, F. 1973. Food reserves of Engelmann spruce planting stock. Forest Sci. 19: 213–219.Google Scholar
  482. Rood, S. B., J. M. Mahoney, D. E. Reid &L. Zim. 1994. Instream flows and the decline of riparian cottonwoods along the St. Mary River, Alberta. Canad. J. Bot. 73: 1250–1260.Google Scholar
  483. Roos, E. E. 1982. Induced genetic changes in seed germplasm during storage. Pp. 409–434in A. A. Khan (ed.), The physiology and biochemistry of seed development, dormancy, and germination. Elsevier, Amsterdam.Google Scholar
  484. Rose, R., S. K. Omi, B. Court &K. Yakimchuk. 1992. Dormancy release and growth responses of 3+0 bare root white spruce (Picea glauca) seedlings subjected to moisture stress before freezer storage. Canad. J. Forest Res. 22: 132–137.Google Scholar
  485. Ryugo, K. &L. D. Davis. 1959. The effect of the time of ripening on the starch content of bearing peach branches. Proc. Amer. Soc. Hort. Sci. 74: 130–133.Google Scholar
  486. Sakai, A. &W. Larcher. 1987. Frost survival of plants: Responses and adaptation to freezing stress. Springer-Verlag, Berlin.Google Scholar
  487. — &C. J. Weiser. 1973. Freezing resistance of trees in North America with reference to tree regions. Ecology 54: 118–126.Google Scholar
  488. Sale, P. J. M. 1970a. Growth, flowering and fruiting of cacao under controlled soil moisture conditions. J. Hort. Sci. 45: 99–118.Google Scholar
  489. — 1970b. Growth and flowering of cacao under controlled atmospheric relative humidities. J. Hort. Sci. 45: 119–132.Google Scholar
  490. Saliendra, N. Z., J. S. Sperry &J. Comstock. 1995. Influence of leaf water status on stomatal response to humidity, hydraulic conductance and soil drought inBetula occidentalis. Planta 196: 357–366.Google Scholar
  491. Santakumari, M. &G. A. Berkowitz. 1991. Chloroplast volume-cell water relationships and acclimation of photosynthesis to leaf water deficits. Photosynth. Res. 28: 9–20.Google Scholar
  492. Sarvas, R. 1962. Investigations on the flowering and seed crop ofPinus silvestris. Commun. Inst. Forest. Fenn. 53: 1–198.Google Scholar
  493. — 1968. Investigations on the flowering and seed crop ofPicea abies. Commun. Inst. For. Fenn. 67: 1–84.Google Scholar
  494. Schaffer, B. &P. C. Anderson (eds.). 1994. Handbook of environmental physiology of fruit crops. 2 vols. CRC Press, Boca Raton, FL.Google Scholar
  495. Schäffner, A. R. 1998. Aquaporin function, structure, and expression: Are there more surprises to surface in water relations? Planta 204: 131–139.PubMedGoogle Scholar
  496. Scholander, P. F., L. Van Dam &S. I. Scholander. 1955. Gas exchange in the roots of mangroves. Amer. J. Bot. 42: 92–98.Google Scholar
  497. Schulze, E.-D., O. L. Lange, U. Buschbom, L. Kappen &M. Evenari. 1972. Stomatal responses to changes in humidity in plants growing in the desert. Planta 108: 259–270.Google Scholar
  498. ——,M. Evenari, L. Kappen &U. Buschbom. 1974. The role of air humidity and leaf temperature in controlling stomatal resistance ofPrunus armeniaca L. under desert conditions, I. A simulation of the daily course of stomatal resistance. Oecologia 17: 159–170.Google Scholar
  499. Sedgley, M. &A. R. Griffin. 1989. Sexual reproduction of tree crops. Academic Press, London.Google Scholar
  500. — &J. Harbard. 1993. Pollen storage and breeding system in relation to controlled pollination of four species ofAcacia (Leguminosae: Mimosoideae). Austral. J. Bot. 41: 601–609.Google Scholar
  501. Sciler, J. R. 1985. Morphological and physiological changes in black alder induced by water stress. Pl. Cell Environ. 8: 219–222.Google Scholar
  502. — &B. H. Cozell. 1990. Influence of water stress on the physiology and growth of red spruce seedlings. Tree Physiol. 6: 69–77.Google Scholar
  503. — &J. D. Johnson. 1988. Physiological and morphological responses of three half-sib families of loblolly pine to water-stress conditioning. Forest Sci. 34: 487–495.Google Scholar
  504. Sena Gomes, A. R. & T. T. Kozlowski 1980a. Growth responses and adaptations ofFraxinus pennsylvanica seedlings to flooding. Pl. Physiol. (Lancaster) 66: 267–271.Google Scholar
  505. ——. 1980b. Responses ofMelaleuca quinquenvervia seedlings to flooding. Physiol. Pl. 49: 373–377.Google Scholar
  506. ——. 1980c. Effects of flooding in growth ofEucalyptus camaldulensis andE. globulus seedlings. Oecologia 46: 139–142.Google Scholar
  507. ——. 1980d. Responses ofPinus halepensis seedlings to flooding. Canad. J. Forest Res. 10: 308–311.Google Scholar
  508. ——. 1986. Effects of flooding on water relations and growth ofTheobroma cacao var.catongo seedlings. J. Hort. Sci. 61: 265–276.Google Scholar
  509. —— &P. B. Reich. 1987. Some physiological responses ofTheobroma cacao var.catongo seedlings to air humidity. New Phytol. 107: 591–602.Google Scholar
  510. Shalhevet, J. &Y. Levy. 1990. Citrus trees. Pp. 951–986in B. A. Stewart & D. R. Nielsen (eds.), Irrigation of agricultural crops. Amer. Soc. Agron., Madison, WI.Google Scholar
  511. Shalom, N. B., J. Hanzon, J. D. Klein &S. Lurie. 1993. A postharvest heat treatment inhibits cell wall degradation in apples during storage. Phytochemistry 34: 955–958.Google Scholar
  512. Shaltout, A. D. &C. R. Unrath. 1983. Rest completion prediction model for Starkrimson Delicious apples. J. Amer. Soc. Hort. Sci. 108: 957–961.Google Scholar
  513. Shannon, M. C., C. M. Grieve &L. E. Francois. 1994. Whole-plant response to salinity. Pp. 199–244in R. E. Wilkinson (ed.), Plant-environment interactions. Marcel Dekker, New York.Google Scholar
  514. Sharkey T. D. &E. L. Singsaas. 1995. Why plants emit isoprene. Nature 374: 769.Google Scholar
  515. — &S. Yeh. 2001. Isoprene emission from plants. Annual Rev. Pl. Physiol. Pl. Molec. Biol. 52: 407–436.Google Scholar
  516. —,E. L. Singsaas, P. J. Vanderveer &C. Geron. 1996. Field measurements of isoprene emission from trees in response to temperature and light. Tree Physiol. 16: 649–654.PubMedGoogle Scholar
  517. —,X. Y. Chen &S. Yeh. 2001. Isoprene increases thermotolerance of fosmidomycin-fed leaves. Pl. Physiol. (Lancaster) 125: 2001–2006.Google Scholar
  518. Shaybany, B. &G. C. Martin. 1977. Abscisic acid identification and its quantification in leaves ofJuglans seedlings during waterlogging. J. Amer. Soc. Hort. Sci. 102: 300–302.Google Scholar
  519. Sheriff, D. W. 1977. The effect of humidity on water uptake by, and viscous flow resistance of, excised leaves of a number of species: Physiological and anatomical observations. J. Exp. Bot. 28: 1399–1407.Google Scholar
  520. —. 1979. Stomatal aperture and the sensing of the environment by guard cells. Pl. Cell Environ. 2: 15–22.Google Scholar
  521. Shirazi, A. M. &L. H. Fuchigami. 1995. The relationship of a near-lethal stress on dormancy and stem cold hardiness in red-osier dogwood. Tree Physiol. 15: 275–279.PubMedGoogle Scholar
  522. Sholberg, P. L. &P. D. Haag. 1996. Incidence of postharvest pathogens of stored apples in British Columbia. Canad. J. Pl. Path. 18: 81–85.Google Scholar
  523. Silim, S. N. &D. P. Lavender. 1994. Seasonal patterns and environmental regulation of frost hardiness in shoots of seedlings ofThuja plicata, Chamaecyparis nootkatensis, andPicea glauca. Canad. J. Bot. 72: 309–316.Google Scholar
  524. Singh, L. B. 1948. Studies in biennial bearing, III. Growth studies in the “on” and “off” year trees. J. Hort. Sci. 24: 123–148.Google Scholar
  525. — 1960. The mango: Botany, cultivation, and utilization. Leonard Hill, London.Google Scholar
  526. Sitton, J. W. &M. E. Patterson. 1992. Effect of high carbon dioxide and low oxygen controlled atmospheres on postharvest decays of apples. Pl. Dis. 76: 992–995.Google Scholar
  527. Skreppa, T. 1991. Within-population variation in autumn frost hardiness and its relationship to bud-set and height growth inPicea abies. Scand. J. Forest Res. 6: 353–364.Google Scholar
  528. Smart, R. E. &B. G. Coombe. 1983. Water relations of grapevines. Pp. 137–196in T. T. Kozlowski (ed.), Water deficits and plant growth. Vol. 7. Additional woody crop plants. Academic Press, New York.Google Scholar
  529. Smit-Spinks, B., B. T. Swanson &A. H. Markhart. 1985. The effect of photoperiod and thermoperiod on cold acclimation and growth ofPinus sylvestris. Canad. J. Forest Res. 15: 453–460.Google Scholar
  530. Smith, D. W. &N. E. Linnartz. 1980. The southern hardwood region. Pp. 145–230in J. W. Barrett (ed.), Regional silviculture of the United States. Ed. 2. Wiley, New York.Google Scholar
  531. Smith, M. W. &P. L. Ager. 1988. Effects of soil flooding on leaf gas exchange of seedling pecan trees. HortScience 23: 370–372.Google Scholar
  532. Smith, W. K. &T. M. Hinckley (eds.). 1995. Ecophysiology of coniferous forests. Academic Press, San Diego, CA.Google Scholar
  533. Smock, R. M. 1979. Controlled atmosphere storage of fruits. Hort. Rev. 1: 301–336.Google Scholar
  534. Snyder, B. E. &K. E. Clausen. 1974. Pollen handling. Pp. 75–97in C. S. Schopmeyer (ed.), Seeds of woody plants in the United States. USDA Agric. Handb. 450. U.S. Gov. Printing Office, Washington, DC.Google Scholar
  535. Somerville, C., J. Browse, J. G. Jaworski &J. B. Ohlrogge. 2000. Lipids. Pp. 456–527in B. B. Buchanan, W. Gruissem & R. L. Jones (eds.), Biochemistry and molecular biology of plants. Amer. Soc. PL PhysioL, Rockville, MD.Google Scholar
  536. Sommer, N. F. 1985. Role of controlled environments in suppression of post harvest diseases. Canad. J. PL Pathol. 7: 331–339.Google Scholar
  537. South, D. B. 1986. Nursery management practices for the southern pines. Auburn Univ., Auburn, AL.Google Scholar
  538. —,J. N. Boyer &L. Bosch. 1985. Survival and growth of loblolly pine as influenced by seedling grade: 13-year results. Southern J. Appl. Forest. 9: 76–81.Google Scholar
  539. Southwick, S. M. &T. L. Davenport. 1986. Characterization of water stress and low temperature effects on flower induction in citrus. Pl. Physiol. (Lancaster) 81: 26–29.Google Scholar
  540. Spalding, D. H. &W. F. Reeder. 1983. Conditioning Tahiti limes to reduce chilling injury. Proc. Florida State Hort. Soc. 96: 231–232.Google Scholar
  541. Specht, R. L. 1981. Responses to fires in heathlands and related shrublands. Pp. 395–415in A. M. Gill, R. H. Groves & I. R. Noble (eds.), Fire and the Australian biota. Austral. Acad. Sci., Canberra.Google Scholar
  542. Spollen, W. G., R. E. Sharp, I. N. Saab &Y. Wu. 1993. Regulation of cell expansion in roots and shoots at low water potentials. Pp. 37–52in J. A. C. Smith & H. Griffiths (eds.), Water deficits: Plant responses from cell to community. Bios Scientific Publishers, Oxford.Google Scholar
  543. Spotts, R. A. 1984. Environmental modifications for control of postharvest decay. Pp. 67–72in H. E. Moline (ed.), Postharvest pathology of fruits and vegetables: Postharvest losses in perishable crops. Agric. Exp. Sta., Div. of Agric. & Nat. Resources., Univ. of California, Berkeley.Google Scholar
  544. Spremulli, L. 2000. Protein synthesis, assembly and degradation. Pp. 412–454in B. B. Buchanan, W. Gruissem & R. L. Jones (eds.), Biochemistry and molecular biology of plants. Amer. Soc. Pl. Physiol., Rockville, MD.Google Scholar
  545. Stanley, R. G. &E. G. Kirby. 1973. Shedding of pollen and seeds. Pp. 295–340in T. T. Kozlowski (ed.), Shedding of plant parts. Academic Press, New York.Google Scholar
  546. — &H. F. Linskens. 1974. Pollen: Biology, biochemistry, management. Springer-Verlag, New York.Google Scholar
  547. Stanwood, P. C. 1985. Cryopreservation of seed germplasm for genetic conservation. Pp. 199–226in K. K. Kartha (ed.), Cryopreservation of plant cells and organs. CRC Press, Boca Raton, FL.Google Scholar
  548. Stein, L. A., G. R. McEachern &J. B. Storey. 1989. Summer and fall moisture stress and irrigation scheduling influence pecan growth and production. HortScience 24: 607–611.Google Scholar
  549. Stewart, J. D., A. Z. Elabidine &P. Y. Bernier. 1995. Stomatal and mesophyll limitations in black spruce seedlings during multiple cycles of drought. Tree PhysioL 15: 57–64.PubMedGoogle Scholar
  550. Stoll, M., B. Loveys &P. Dry. 2000. Hormonal changes induced by partial rootzone drying of irrigated grapevine. J. Exp. Bot. 51: 1627–1634.PubMedGoogle Scholar
  551. Stone, E. C. &G. Juhren. 1951. The effect of fire on the germination ofRhus ovata Wats. Amer. J. Bot. 38: 368–372.Google Scholar
  552. —,J. L. Jenkinson &S. L. Krugman. 1962. Root-regenerating potential of Douglas-fir seedlings lifted at different times of the year. Forest Sci. 8: 288–297.Google Scholar
  553. —,G. H. Schubert, R. W. Benseler, F. J. Baron &S. L. Krugman. 1963. Variation in the rootregenerating potentials of ponderosa pine from four California nurseries. Forest Sci. 9: 217–225.Google Scholar
  554. Stow, J. 1986. Effects of rate of establishment of storage conditions and ethylene removal on the storage performance of a Cox’s Orange Pippin apple. Sci. Hort. 28: 369–378.Google Scholar
  555. — 1988. The effects of high carbon dioxide pretreatments and ethylene removal on the storage performance of apples Cox’s Orange Pippin. Sci. Hort. 35: 89–97.Google Scholar
  556. —. 1990. The effects of removal of ethylene from low oxygen storage atmospheres on the quality of Cox’s Orange Pippin apples. Sci. Hort. 43: 281–290.Google Scholar
  557. Styles, E. D., J. M. Burgess, C. Mason &B. M. Huber. 1982. Storage of seed in liquid nitrogen. Cryobiology 19: 195–199.PubMedGoogle Scholar
  558. Tanaka, Y. & R. Timmis. 1974. Effects of container density on growth and cold hardiness of Douglas-fir seedlings. Pp. 181–186in R. W. Tinus, W. I. Stein & W. E. Balmer (eds.), Proceedings of the North American Containerized Forest Tree Seedling Symposium. Great Plains Agric. Council Publ. 68.Google Scholar
  559. Tang, Z. C. &T. T. Kozlowski. 1982a. Some physiological and morphological responses ofQuercus macrocarpa to flooding. Canad. J. Forest Res. 12: 196–202.Google Scholar
  560. ——. 1982b. Physiological, morphological and growth responses ofPlatanus occidentalis seedlings to flooding. Pl. & Soil 66: 243–255.Google Scholar
  561. ——. 1982c. Some physiological and growth responses ofBetula papyrifera seedlings to flooding. Physiol. Pl. 55: 415–420.Google Scholar
  562. —— 1983. Responsesof Pinus banksiana andPinus resinosa seedlings to flooding. Canad. J. Forest Res. 13: 633–639.Google Scholar
  563. — 1984. Ethylene production and morphological adaptations of woody plants to flooding. Canad. J. Bot. 62: 1659–1664.Google Scholar
  564. Tardieu, F. &W. J. Davies. 1993. Integration of hydraulic and chemical signalling in the control of stomatal conductance and water status of droughted plants. Pl. Cell Environ. 16: 341–349.Google Scholar
  565. Taylor, M. A., H. V. Davies, S. B. Smith, A. Abruzzese &P. G. Gosling. 1993. Cold-induced changes in gene expression during dormancy breakage in seeds of Douglas fir (Pseudotsuga menziesii). J. Pl. Physiol. 142: 120–123.Google Scholar
  566. Teich, A. H. 1970. Cone serotiny and inbreeding in natural populations ofPinus banksiana andPinus contorta. Canad. J. Bot. 48: 1805–1809.Google Scholar
  567. Teller, A., P. Mathy &J. N. R. Jeffers (eds.). 1992. Responses of forest ecosystems to environmental changes. Elsevier, New York.Google Scholar
  568. Thanos, C. A., S. Marcow, D. Christodoulakis &A. Yannitsaros. 1989. Early post-fire regeneration inPinus brutia forest ecosystems of Samos Island (Greece). Acta Oecol., Oecol. Pl. 10: 79–94.Google Scholar
  569. Thomashow, M. F. 1999. Plant cold acclimation: Freezing tolerance genes and regulatory mechanisms. Annual Rev. Pl. Physiol. Pl. Molec. Biol. 50: 571–599.Google Scholar
  570. Timmis, R. &Y. Tanaka. 1976. Effects of container density and moisture stress on growth and cold hardiness of Douglas-fir seedlings. Forest Sci. 22: 167–172.Google Scholar
  571. — &J. Worrall. 1975. Environmental control of cold acclimation in Douglas-fir during germination, active growth and rest. Canad. J. Forest Res. 5: 464–477.Google Scholar
  572. Tompsett, P. B. 1982. The effect of desiccation on the longevity of seeds ofAraucaria hunsteinii andA. cunninghamii. Ann. Bot. (London), n.s., 50: 693–704.Google Scholar
  573. — 1992. A review of the literature on storage of dipterocarp seeds. Seed Sci. & Technol. 20: 251–267.Google Scholar
  574. Topa, M. A. &K. W. McLeod. 1986a. Responses ofPinus clausa, Pinus serotina, andPinus taeda seedlings to anaerobic solution culture, I. Changes in growth and root morphology. Physiol. Pl. 68: 532–539.Google Scholar
  575. ——. 1986b. Aerenchyma and lenticel formation in pine seedlings: A possible avoidance mechanism to anaerobic growth conditions. Physiol. Pl. 68: 540–550.Google Scholar
  576. Towill, L. E. 1985. Low temperature and freeze-vacuum drying preservation of pollen. Pp. 171–198in K. K. Kartha (ed.), Cryopreservation of plant cells and organs. CRC Press, Boca Raton, FL.Google Scholar
  577. Triboulot, M. B., J. Pritchard &D. Tomos. 1995. Stimulation and inhibition of pine root growth by osmotic stress. New Phytol. 130: 169–175.Google Scholar
  578. Tschaplinski, T. J. &T. J. Blake. 1989. Water-stress tolerance and late-season organic solute accumulation in hybrid poplar. Canad. J. Bot. 67: 1681–1688.Google Scholar
  579. — &G. A. Tuskan. 1994. Water-stress tolerance of black and eastern cottonwood clones and four hybrid progeny, II. Metabolites and inorganic ions that constitute osmotic adjustment. Canad. J. For. Res. 24: 681–687.Google Scholar
  580. — &G. A. Tuskan. &C. A. Gunderson. 1994. Water stress tolerance of black and eastern cottonwood clones and four hybrid progeny, I. Growth, water relations, and gas exchange. Canad. J. Forest Res. 24: 364–371.Google Scholar
  581. Tsukahara, H. &T. T. Kozlowski. 1985. Importance of adventitious roots to growth of floodedPlatanus occidentalis seedlings. Pl. & Soil 88: 123–132.Google Scholar
  582. Tukey, L. D. 1983. Vegetative control and fruiting on mature apple trees treated with PP-333. Acta Hort. 137: 103–109.Google Scholar
  583. —. 1986. Cropping characteristics of bearing apple trees annually sprayed with paclobutrazol (PP-333). Acta Hort. 179: 481–488.Google Scholar
  584. Tunstall, B. R. &D. J. Connor. 1975. Internal water balance of brigalow (Acacia harpophylla F. Muell.) under natural conditions. Austral. J. Pl. Physiol. 2: 489–499.Google Scholar
  585. Turner, N. C. &M. M. Jones. 1980. Turgor maintenance by osmotic adjustment. Pp. 87–104in N. C. Turner & P. J. Kramer (eds.), Adaptation of plants to water and high temperature stress. Wiley, New York.Google Scholar
  586. Tylkowski, T. 1985. Overcoming of seed dormancy in cherry plumPrunus cerasifera var.divaricata Bailey. Arbor. Kornickie 30: 339–350.Google Scholar
  587. Tyree, M. T., Y. N. S. Cheung, M. E. MacGregor &A. J. B. Talbot. 1978. The characteristics of seasonal and ontogenetic changes in the tissue-water relations ofAcer, Populus, Tsuga andPicea. Canad. J. Bot. 56: 635–647.Google Scholar
  588. Ushirozawa, K. &J. Shibukawa. 1948. On the germination and fertility of apple pollen. J. Jap. Soc. Hort. Sci. 17: 209–211.Google Scholar
  589. Van den Driessche, R. 1969. Influence of moisture supply, temperature, and light on frost-hardiness changes in Douglas-fir seedlings. Canad. J. Bot. 47: 1765–1772.Google Scholar
  590. — 1977. Survival of coastal and interior Douglas fir seedlings after storage at different temperatures, and effectiveness of cold storage in satisfying chilling requirements. Canad. J. Forest Res. 7: 125–131.Google Scholar
  591. — 1979. Respiration rate of cold-stored nursery stock. Canad. J. Forest Res. 9: 15–18.Google Scholar
  592. Van Eerden, E. &J. W. Gates. 1990. Seedling production and processing: Container. Pp. 226–234in D. P. Lavender, R. Parish, C. Johnson, G. Montgomery, A. Vyse, R. A. Willes & D. Winston (eds.), Regenerating British Columbia’s forests. Univ. British Columbia Press, Vancouver.Google Scholar
  593. Vidaver, W. E., W. Binder, R. C. Brooke, G. R. Lister &P. M. A. Toivonen. 1989. Assessment of photosynthetic activity of nursery grownPicea glauca (Moench.) Voss seedlings using an integrating fluorometer to monitor variable chlorophyll fluorescence. Canad. J. Forest Res. 19: 1478–1482.Google Scholar
  594. Vogl, R. J., P. W. Armstrong, K. L. White &K. L. Cole. 1977. The closed-cone pines and cypresses. Pp. 295–358in M. G. Barbour & J. Major (eds.), Terrestrial vegetation of California. Wiley, New York.Google Scholar
  595. Wagenbreth, D. 1965. Das Auftreten von zwei Letalstufen bei Hitzeeinwirkung auf Pappelblätter. Flora (Jena) 156A: 116–126.Google Scholar
  596. Waisel, Y. 1972. Biology of halophytes. Academic Press, New York.Google Scholar
  597. — 1991. Adaptation to salinity. Pp. 359–383in A. S. Raghavendra (ed.), Physiology of trees. Wiley, New York.Google Scholar
  598. A. Eshel &M. Agami. 1986. Salt balance of leaves of the mangroveAvicennia marina. Physiol. Pl. 67: 67–72.Google Scholar
  599. Wakabayashi, K., T. Hoson &S. Kamisaka. 1997. Osmotic stress suppresses cell wall stiffening and the increase in cell wall bound ferulic and diferulic acids in wheat coleoptiles. Pl. Physiol. (Lancaster) 113: 967–973.Google Scholar
  600. Wakeley, P. C. 1954. Planting the southern pines. Agric. Monogr. 18.U.S. Dept. of Agric, Washington, DC.Google Scholar
  601. Walkins, C. B., K. L. McMath, J. H. Bowen, C. J. Brennan, S. L. McMillan &D. P. Billing. 1991. Controlled atmosphere storage of Granny Smith apples. New Zealand J. Crop Hort. Sci. 19: 61–68.Google Scholar
  602. Walser, R. H. &T. D. Davis. 1989. Growth, reproductive development and dormancy characteristics of paclobutrazol-treated tart cherry trees. J. Hort. Sci. 64: 435–441.Google Scholar
  603. Wang, B. S. P., P. J. Charest &B. Downie. 1993.Ex situ storage of seeds, pollen andin vitro culture of perennial woody plants. FAO Forest. Pap. 113. Food & Agric. Org. of the United Nations, Rome.Google Scholar
  604. Wang, C.-Y. 1990. Alleviation of chilling injury in horticultural crops. Pp. 281–302in C.-Y. Wang (ed.), Chilling injury of horticultural crops. CRC Press, Boca Raton, FL.Google Scholar
  605. — 1993. Approaches to reducing chilling injury of fruits and vegetables. Hort. Rev. 15: 63–95.Google Scholar
  606. Wang, S. Y. &M. Faust. 1994. Changes in the antioxidant system associated with bud break in Anna apple (Malus domestica Borkh.) buds. J. Amer. Soc. Hort. Sci. 119: 735–741.Google Scholar
  607. Wang, Z. &G. W. Stutte. 1992. The role of carbohydrates in active osmotic adjustment in apple under water stress. J. Amer. Soc. Hort. Sci. 117: 816–823.Google Scholar
  608. —,B. Quebedeaux &G. W. Stutte. 1995. Osmotic adjustment: Effect of water stress on carbohydrates in leaves, stems and roots of apple. Austral. J. Pl. Physiol. 22: 747–754.Google Scholar
  609. Wardrop, A. B. 1983. The opening mechanism of follicles of some species ofBanksia. Austral. J. Bot. 31: 485–500.Google Scholar
  610. Waring, R. H. 1991. Responses of evergreen trees to multiple stresses. Pp. 371–390in H. A. Mooney, W. E. Winner & E. J. Pell (eds.), Response of plants to multiple stresses. Academic Press, San Diego, CA.Google Scholar
  611. Wazir, F. K., M. W. Smith &S. W. Akers. 1988. Effects of flooding on phosphorous levels in pecan seedlings. HortScience 23: 595–597.Google Scholar
  612. Webb, D. P. &F. W. Von Althen. 1980. Storage of hardwood planting stock: Effects of various storage regimes and packaging methods on root growth and physiological quality. New Zealand J. Forest Sci. 10: 83–89.Google Scholar
  613. Webster, A. D., J. D. Quinlan &P. J. Richardson. 1986. The influence of paclobutrazol on the growth and cropping of sweet cherry cultivars, I. The effect of annual soil treatments on the growth and cropping of cv.Early Rivers. J. Hort. Sci. 61: 471–478.Google Scholar
  614. Weichmann, J. 1986. The effect of controlled-atmosphere storage on the sensory and nutritional quality of fruits and vegetables. Hort. Rev. 8: 101–127.Google Scholar
  615. White, D. A., C. L. Beadle &D. Worledge. 1996. Leaf water relations ofEucalyptus globulus ssp.globulus andE. nitens: Seasonal, drought and species effects. Tree Physiol. 16: 469–476.PubMedGoogle Scholar
  616. Wildung, D. K., C. J. Weiser &H. M. Pellett. 1973. Temperature and moisture effects on hardening of apple roots. HortScience 8: 53–55.Google Scholar
  617. Williams, G. J., N. E. Pellett &R. M. Klein. 1972. Phytochrome control of growth cessation and initiation of cold acclimation in selected woody plants. Pl. Physiol. (Lancaster) 50: 262–265.Google Scholar
  618. Winjum, J. K. 1963. Effects of lifting date and storage on 2+0 Douglas fir and Noble fir. J. Forest. 61: 648–654.Google Scholar
  619. Winner, W. E., G. W. Koch &H. A. Mooney. 1982. Ecology of SO2 resistance, IV. Predicting metabolic responses of fumigated trees and shrubs. Oecologia 52: 16–21.Google Scholar
  620. Wisniewski, M., J. J. Sauter, V. Stepien &L. H. Fuchigami. 1994. Effects of near lethal heat stress on endodormancy and ecodormancy of peach and hybrid poplar. HortScience 29: 511.Google Scholar
  621. —,R. Arora &T. Artlip. 1995. Seasonal patterns of dehydrin in bark tissue of eight species of woody plants. HortScience 30: 851.Google Scholar
  622. —,L. H. Fuchigami, J. J. Sauter, A. Shirazi &L. Zhen. 1996. Near-lethal stress and bud dormancy in woody plants. Pp. 201–210in G. A. Lang (ed.), Plant dormancy: Physiology, biochemistry and molecular biology. CAB International, Oxford.Google Scholar
  623. —,J. Sauter, L. Fuchigami &V. Stepien. 1997. Effects of near-lethal heat stress on bud break, heat-shock proteins and ubiquitin in dormant poplar (Populus nigra charkowiensis ×P. nigra incrassata). Tree Physiol. 17: 453–460.PubMedGoogle Scholar
  624. Wood, B. W. 1988. Paclobutrazol suppresses shoot growth and influences nut quality and yield of young pecan trees. J. Amer. Soc. Hort. Sci. 113: 374–377.Google Scholar
  625. Worley, R. E. 1982. Tree yield and nut characteristics of pecans with drip irrigation under humid conditions. J. Amer. Soc. Hort. Sci. 107: 30–34.Google Scholar
  626. Yahia, E. M. 1994. Apple flavor. Hort. Rev. 16: 197–234.Google Scholar
  627. —,F. W. Liu &T. E. Acree. 1990. Changes of some odor-active volatiles in controlled atmosphere-stored apples. J. Food Qual. 13: 185–202.Google Scholar
  628. Yamada, S., T. Komori, P. N. Myers, S. Kuwata, T. Kubo &H. Imaseki. 1997. Expression of plasma membrane water channel genes under water stress inNicotiana excelsior. Pl. Cell Physiol. 38: 1226–1231.Google Scholar
  629. Yamaguchi-Shinozaki, K., M. Koizumi, S. Urao &K. Shinozaki. 1992. Molecular cloning and characterization of 9 cDNAs for genes that are responsive to desiccation inArabidopsis thaliana: Sequence analysis of one cDNA clone that encodes a putative transmembrane channel protein. Pl. Cell Physiol. 33: 217–224.Google Scholar
  630. Yamamoto, F., S. Sakata &K. Tenazawa. 1995. Physiological, morphological and anatomical responses ofFraxinus mandshurica seedlings to flooding. Tree Physiol. 15: 713–719.PubMedGoogle Scholar
  631. Yelenosky, G. 1979. Water-stress induced cold hardening of young citrus trees. J. Amer. Soc. Hort. Sci. 104: 270–273.Google Scholar
  632. Young, E. 1992. Timing of high temperature influences chilling negation in dormant apple shoots. J. Amer. Soc. Hort. Sci. 117: 271–272.Google Scholar
  633. Young, J. A. &C. G. Young. 1992. Seeds of woody plants in North America. Rev. & enl. ed. Dioscorides Press, Portland, Oregon.Google Scholar
  634. Zaerr, J. B. 1983. Short-term flooding and net photosynthesis in seedlings of three conifers. Forest Sci. 29: 71–78.Google Scholar
  635. Zedler, P. H. 1986. Closed-cone conifers of the chaparral. Fremontia 14(October): 14–17.Google Scholar
  636. Zhang, B. &D. D. Archbold. 1991. Solute accumulation in leaves ofFragaria chiloensis andF. virginiana in response to water deficit stress. HortScience 26: 176.Google Scholar
  637. Zhang, J. &W. J. Davies. 1989. Abscisic acid produced in dehydrating roots may enable the plant to measure the water status of the soil. Pl. Cell Environ. 12: 73–81.Google Scholar
  638. ——. 1990. Changes in the concentration of ABA in xylem sap as a function of changing soil water status can account for changes in leaf conductance and growth. Pl. Cell Environ. 13: 277–286.Google Scholar
  639. —,U. Schurr &W. J. Davies. 1987. Control of stomatal behaviour by abscisic acid which apparently originates in the roots. J. Exp. Bot. 38: 1174–1181.Google Scholar
  640. Zwiazek, J. J. &T. J. Blake. 1989. Effects of preconditioning on subsequent water relations, stomatal sensitivity and photosynthesis in osmotically stressed black spruce. Canad. J. Bot. 67: 2240–2246.Google Scholar

Copyright information

© The New York Botanical Garden 2002

Authors and Affiliations

  • T. T. Kozlowski
    • 1
  • S. G. Pallardy
    • 2
  1. 1.Department of Environmental Science, Policy and ManagementUniversity of California, BerkeleyBerkeleyUSA
  2. 2.School of Natural ResourcesUniversity of MissouriColumbiaUSA

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