Annals of Forest Science

, Volume 68, Issue 8, pp 1277–1290 | Cite as

Walnut (Juglans spp.) ecophysiology in response to environmental stresses and potential acclimation to climate change

Review Paper

Abstract

Context

Walnuts (Juglans spp.) are ecologically and commercially important trees, yet synthesis of past and current research findings on walnut ecophysiology is lacking, especially in terms of potential acclimation to climate change.

Aims

This study aims to (1) investigate walnut ecophysiology by comparing its attributes to associated deciduous angiosperms, (2) address potential acclimation of walnut to climate change, and (3) identify areas for prioritization in future research.

Results

There is considerable uncertainty regarding the magnitude of potential effects of climate change on walnut. Some studies tend to indicate walnut could be negatively impacted by climate change, while others do not. Walnut may be at a disadvantage due to its susceptibility to drought and frost injury in current growing regions given the projected increases in temperature and extreme climatic events. Other regions that are currently considered cold for walnut growth may see increased establishment and growth depending upon the rate of temperature increase and the frequency and severity of extreme climatic events.

Conclusion

Research investigating a combination of environmental factors, such as temperature, carbon dioxide, ozone, water, and nitrogen is needed to (1) better project climate change effects on walnut and (2) develop management strategies for walnut acclimation and adaptation to climate change.

Keywords

Climate change Ecophysiology Environmental stress Juglans Walnut 

References

  1. Allen CD, Macalady AK, Chenchouni H, Bachelet D, McDowell N, Vennetier M, Kitzberger T, Rigling A, Breshears DD, Hogg EH, Gonzalez P, Fensham R, Zhang Z, Castro J, Demidova N, Lim J-H, Allard G, Running SW, Semerci A, Cobb N (2010) A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests. For Ecol Manage 259:660–684Google Scholar
  2. Alves G, Améglio T, Guilliot A, Fleurat-Lessard P, Lacointe A, Sakr S, Pétel G, Julien J-L (2004) Winter variation in xylem sap pH of walnut trees: involvement of plasma membrane H+-ATPase of vessel-associated cells. Tree Physiol 24:99–105PubMedGoogle Scholar
  3. Alves G, Decourteix M, Fleurat-Lessard P, Sakr S, Bonhomme M, Améglio T, Lacointe A, Julien J-L, Pétel G, Guilliot A (2007) Spatial activity and expression of plasma membrane H+-ATPase in stem xylem of walnut during dormancy and growth resumption. Tree Physiol 27:1471–1480PubMedGoogle Scholar
  4. Améglio T, Cochard H, Ewers FW (2001a) Stem diameter variations and cold hardiness in walnut trees. J Exp Bot 52:2135–2142PubMedGoogle Scholar
  5. Améglio T, Cochard H, Lacointe A, Vandame M, Bodet C, Cruiziat P, Sauter J, Ewers F, Martignac M (2001b) Adaptation to cold temperature and response to freezing in walnut tree. Acta Hort 544:247–254Google Scholar
  6. Améglio T, Ewers FW, Cochard H, Martignac M, Vandame M, Bodet C, Cruiziat P (2001c) Winter stem pressures in walnut trees: effects of carbohydrates, cooling and freezing. Tree Physiol 21:387–394PubMedGoogle Scholar
  7. Améglio T, Bodet C, Lacointe A, Cochard H (2002) Winter embolism, mechanisms of xylem hydraulic conductivity recovery and springtime growth patterns in walnut and peach trees. Tree Physiol 22:1211–1220PubMedGoogle Scholar
  8. Améglio T, Decourteix M, Alves G, Valentin V, Sakr S, Julien J-L, Pétel G, Guilliot A, Laco A (2004) Temperature effects on xylem sap osmolarity in walnut trees: evidence for a vitalistic model of winter embolism repair. Tree Physiol 24:785–793PubMedGoogle Scholar
  9. Baker FS (1948) A revised tolerance table. J For 45:179–181Google Scholar
  10. Baldocchi D, Wong S (2008) Accumulated winter chill is decreasing in the fruit growing regions of California. Clim Chang 87:153–166Google Scholar
  11. Bonhomme M, Peuch M, Améglio T, Rageau R, Guilliot A, Decourteix M, Alves G, Sakr S, Lacointe A (2010) Carbohydrate uptake from xylem vessels and its distribution among stem tissues and buds in walnut (Juglans regia L). Tree Physiol 30:89–102PubMedGoogle Scholar
  12. Bréda N, Huc R, Granier A, Dreyer E (2006) Temperate forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequences. Ann For Sci 63:625–644Google Scholar
  13. Carpenter SB, Hanover JW (1974) Comparative growth and photosynthesis of black walnut and honeylocust seedlings. For Sci 20:317–324Google Scholar
  14. Chenevard D, Frossard JS, Lacointe A (1994) Lipid utilization and carbohydrate partitioning during germination of English walnut (Juglans regia). Ann For Sci 51:373–379Google Scholar
  15. Chenevard D, Frossard JS, Jay-Allemand C (1997) Carbohydrate reserves and CO2 balance of hybrid walnut (Juglans nigra no. 23 × Juglans regia) plantlets during acclimatization. Sci Hort 68:207–217Google Scholar
  16. Christensen JH, Hewitson B, Busuioc A, Chen A, Gao X, Held I, Jones R, Kolli RK, Kwon W-T, Laprise R, Magaña Rueda V, Mearns L, Menéndez CG, Räisänen J, Rinke A, Sarr A, Whetton P (2007) Regional Climate Projections. In: Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M, Miller HL (eds) Climate change 2007: The physical science basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, pp 847–940Google Scholar
  17. Cochard H, Lemoine D, Améglio T, Granier A (2001) Mechanisms of xylem recovery from winter embolism in Fagus sylvatica. Tree Physiol 21:27–33PubMedGoogle Scholar
  18. Cochard H, Coll L, Le Roux X, Améglio T (2002) Unraveling the effects of plant hydraulics on stomatal closure during water stress in walnut. Plant Physiol 128:282–290PubMedGoogle Scholar
  19. Cochard H, Venisse J-S, Barigah TS, Brunel N, Herbette S, Guilliot A, Tyree MT, Sakr S (2007) Putative role of aquaporins in variable hydraulic conductance of leaves in response to light. Plant Physiol 143:122–133PubMedGoogle Scholar
  20. Crepinsek Z, Solar M, Stampar F, Solar A (2009) Shifts in walnut (Juglans regia L.) phenology due to increasing temperatures in Slovenia. J Hort Sci Biotech 84:59–64Google Scholar
  21. Daudet F-A, Le Roux X, Sinoquet H, Adam B (1999) Wind speed and leaf boundary layer conductance variation within tree crown—consequences on leaf-to-atmosphere coupling and tree functions. Agric For Meteorol 97:171–187Google Scholar
  22. Davies WJ, Kozlowski TT (1977) Variations among woody plants in stomatal conductance and photosynthesis during and after drought. Plant Soil 46:435–444Google Scholar
  23. Dean TJ, Pallardy SG, Cox GS (1982) Photosynthetic responses of black walnut (Juglans nigra) to shading. Can J For Res 12:725–730Google Scholar
  24. Decourteix M, Alves G, Brunel N, Améglio T, Guilliot A, Lemoine R, Pétel G, Sakr S (2006) JrSUT1, a putative xylem sucrose transporter, could mediate sucrose influx into xylem parenchyma cells and be upregulated by freeze–thaw cycles over the autumn–winter period in walnut tree (Juglans regia L). Plant Cell Environ 29:36–47PubMedGoogle Scholar
  25. Decourteix M, Alves G, Bonhomme M, Peuch M, Baaziz KB, Brunel N, Guilliot A, Rageau R, Améglio T, Pétel G, Sakr S (2008) Sucrose (JrSUT1) and hexoses (JrHT1 and 2) transporters in walnut xylem parenchyma cells: their potential role in early events of growth resumption. Tree Physiol 28:215–224PubMedGoogle Scholar
  26. Delaire M, Frak E, Sigogne M, Adam B, Beaujard F, Le Roux X (2005) Sudden increase in atmospheric CO2 concentration reveals strong coupling between shoot carbon uptake and root nutrient uptake in young walnut trees. Tree Physiol 25:229–235PubMedGoogle Scholar
  27. Deng X, Weinbaum SA, DeJong TM (1989) Use of labeled nitrogen to monitor transition in nitrogen dependence from storage to current-year uptake in mature walnut trees. Trees 3:11–16Google Scholar
  28. Dreyer E, Le Roux X, Montpied P, Daudet F-A, Masson F (2001) Temperature response of leaf photosynthetic capacity in seedlings from seven temperate tree species. Tree Physiol 21:223–232PubMedGoogle Scholar
  29. Dudek DM, McClenahen JR, Mitsch WJ (1998) Tree growth responses of Populus deltoides and Juglans nigra to streamflow and climate in a bottomland hardwood forest in central Ohio. Ame Mid Nat 140:233–244Google Scholar
  30. Ewers FW, Améglio T, Cochard H, Beaujard F, Martignac M, Vandame M, Bodet C, Cruiziat P (2001) Seasonal variation in xylem pressure of walnut trees: root and stem pressures. Tree Physiol 21:1123–1132PubMedGoogle Scholar
  31. Fady B, Duccy F, Aleta N, Becquey J, Diaz Vazquez R, Fernandez Lopez F, Jay-Allemand C, Lefèvre F, Ninot A, Panetsos K, Paris P, Pisanelli A, Rumpf H (2003) Walnut demonstrates strong genetic variability for adaptive and wood quality traits in a network of juvenile field tests across Europe. New For 25:211–225Google Scholar
  32. Frak E, Le Roux X, Millard P, Dreyer E, Jaouen G, Saint-Joanis B, Wendler R (2001) Changes in total leaf nitrogen and partitioning of leaf nitrogen drive photosynthetic adaptation to light in fully developed walnut leaves. Plant Cell Environ 24:1279–1288Google Scholar
  33. Frak E, Le Roux X, Millard P, Adam B, Dreyer E, Escuit C, Sinoquet H, Vandame M, Varlet-Grancher C (2002a) Spatial distribution of leaf nitrogen and photosynthetic capacity within the foliage of individual trees: disentangling the effects of local light quality, leaf irradiance, and transpiration. J Exp Bot 53:2207–2216PubMedGoogle Scholar
  34. Frak E, Millard P, Le Roux X, Guillaumie S, Wendler R (2002b) Coupling sap flow velocity and amino acid concentrations as an alternative method to 15N labeling for quantifying nitrogen remobilization by walnut trees. Plant Physiol 130:1043–1053PubMedGoogle Scholar
  35. Frak E, Le Roux X, Millard P, Guillaumie S, Wendler R (2005) Nitrogen availability, local light regime and leaf rank effects on the amount and sources of N allocated within the foliage of young walnut (Juglans nigra × regia) trees. Tree Physiol 26:43–49Google Scholar
  36. Frossard JS, Lacointe A (1988) Les variations saisonnières de l’utilisation du carbone chez les arbres au stade végétatif, en zone tempérée. Bull Soc Bot Fr 135:9–24Google Scholar
  37. Frossard JS, Charron A, Lacointe A (1989) Growth relationships between root and shoot in walnut seedlings (Juglans regia L.). Ann For Sci 46:297s–300sGoogle Scholar
  38. Gauthier M-M, Jacobs DF (2009) Short-term physiological responses of black walnut (Juglans nigra L) to plantation thinning. For Sci 55:221–229Google Scholar
  39. Gauthier M-M, Jacobs DF (2010) Ecophysiological responses of black walnut (Juglans nigra) to plantation thinning along a vertical canopy gradient. For Ecol Manage 259:867–874Google Scholar
  40. George MF, Hong SG, Burke MJ (1977) Cold hardiness and deep supercooling of hardwoods: its occurrence in provenance collections of red oak, yellow birch, black walnut, and black cherry. Ecol 58:674–680Google Scholar
  41. Ginter-Whitehouse DL, Hinckley TM, Pallardy SG (1983) Spatial and temporal aspects of water relations of three tree species with different vascular anatomy. For Sci 29:317–329Google Scholar
  42. Goldfarb D, Hendrick R, Pregitzer K (1990) Seasonal nitrogen and carbon concentrations in white, brown and woody fine roots of sugar maple (Acer saccharum Marsh). Plant Soil 126:144–148Google Scholar
  43. Green SR (1993) Radiation balance, transpiration and photosynthesis of an isolated tree. Agric For Meteorol 64:201–221Google Scholar
  44. Green DS, Kruger EL (2001) Light-mediated constraints on leaf function correlate with leaf structure among deciduous and evergreen tree species. Tree Physiol 21:1341–1346PubMedGoogle Scholar
  45. Hardin JW, Leopold DJ, White FM (2001) Harlow & Harrar’s textbook of dendrology, 9th edn. McGraw Hill, New YorkGoogle Scholar
  46. Hemery GE, Clark JR, Aldinger E, Claessens H, Malvolti ME, O’Connor E, Raftoyannis Y, Savill PS, Brus R (2010) Growing scattered broadleaved tree species in Europe in a changing climate: a review of risks and opportunities. For 83:65–81Google Scholar
  47. Hinckley TM, Bruckerhoff DN (1975) The effects of drought on water relations and stem shrinkage of Quercus alba. Can J Bot 53:62–72Google Scholar
  48. Hinckley TM, Dougherty PM, Lassoie JP, Roberts JE, Teskey RO (1979) A severe drought: impact on tree growth, phenology, net photosynthetic rate and water relations. Ame Mid Nat 102:307–316Google Scholar
  49. Huntington TG, Richardson AD, McGuire KJ, Hayhoe K (2009) Climate and hydrological changes in the northeastern United States: recent trends and implications for forested and aquatic systems. Can J For Res 39:199–212Google Scholar
  50. Jacobs DF, Seifert JR (2004) Facilitating nutrient acquisition of black walnut and other hardwoods at plantation establishment. In: Michler CH, Pijut PM, Van Sambeek JW, Coggeshall MV, Seifert J, Woeste K, Overton R, Ponder F Jr (eds) Black walnut in a new century. Proceedings of the 6th Walnut Council Research Symposium, 25–28 July 2004, Lafayette, IN. USDA For Serv, Gen Tech Rep NC-243, St Paul, pp 66–70Google Scholar
  51. Jacobs DF, Salifu KF, Seifert JR (2005) Growth and nutritional response of hardwood seedlings to controlled-release fertilization at outplanting. For Ecol Manage 214:28–39Google Scholar
  52. King JS, Kubiske ME, Pregitzer KS, Hendrey GR, McDonald EP, Giardina CP, Quinn VS, Karnosky DF (2005) Tropospheric O3 compromises net primary production in young stands of trembling aspen, paper birch and sugar maple in response to elevated atmospheric CO2. New Phytol 168:623–636PubMedGoogle Scholar
  53. Kozlowski TT, Pallardy SG (1997) Physiology of woody plants, 2nd edn. Academic Press, San DiegoGoogle Scholar
  54. Kramer PJ (1983) Water relations of plants. Academic Press, New YorkGoogle Scholar
  55. Kuhns MR, Garrett HE, Teskey RO, Hinckley TM (1985) Root growth of black walnut trees related to soil temperature, soil water potential, and leaf water potential. For Sci 31:617–629Google Scholar
  56. Lacointe A (1989) Assimilate allocation and carbon reserves in Juglans regia L. seedlings. Ann For Sci 46:832s–836sGoogle Scholar
  57. Lacointe A (2000) Carbon allocation among tree organs: a review of basic processes and representation in functional–structural tree models. Ann For Sci 57:521–533Google Scholar
  58. Lacointe A, Kajji A, Améglio T, Daudet FA, Cruiziat P, Archer P, Frossard JS (1993) Storage and mobilization of carbon reserves in walnut and its consequences on the water status during dormancy. Acta Hort 311:201–209Google Scholar
  59. Lacointe A, Kajji A, Daudet F-A, Archer P, Frossard J-S (1995) Seasonal variation of photosynthetic carbon flow rate into young walnut and its partitioning among the plant organs and functions. J Plant Physiol 146:222–230Google Scholar
  60. Le Roux X, Grand S, Dreyer E, Daudet F-A (1999a) Parameterization and testing of a biochemically based photosynthesis model for walnut (Juglans regia) trees and seedlings. Tree Physiol 19:481–492PubMedGoogle Scholar
  61. Le Roux X, Sinoquet H, Vandame M (1999b) Spatial distribution of leaf dry weight per area and leaf nitrogen concentration in relation to local radiation regime within an isolated tree crown. Tree Physiol 19:181–188PubMedGoogle Scholar
  62. Le Roux X, Bariac T, Sinoquet H, Genty B, Piel C, Mariotti A, Girardin C, Richard P (2001) Spatial distribution of leaf water-use efficiency and carbon isotope discrimination within an isolated tree crown. Plant Cell Environ 24:1021–1032Google Scholar
  63. Lechowicz MJ (1984) Why do temperate deciduous trees leaf out at different times? Adaptation and ecology of forest communities. Ame Nat 124:821–842Google Scholar
  64. Lemprière TC, Bernier PY, Carroll AL, Flannigan MD, Gilsenan RP, McKenney DW, Hogg EH, Pedlar JH, Blain D (2008) The importance of forest sector adaptation to climate change. Nat Resour Can, Can For Serv, North For Cent, Edmonton, AB, Inf Rep NOR-X-416EGoogle Scholar
  65. Lennon JM, Aber JD, Melillo JM (1985) Primary production and nitrogen allocation of field grown sugar maples in relation to nitrogen availability. Biogeochem 1:135–154Google Scholar
  66. Lindner M, Maroschek M, Netherer S, Kremer A, Barbati A, Garcia-Gonzalo J, Seidl R, Delzon S, Corona P, Kolströma M, Lexer MJ, Marchetti M (2010) Climate change impacts, adaptive capacity, and vulnerability of European forest ecosystems. For Ecol Manage 259:698–709Google Scholar
  67. Loach K (1967) Shade tolerance in tree seedlings. I Leaf photosynthesis and respiration in plants raised under artificial shade. New Phytol 66:607–621Google Scholar
  68. Loacker K, Kofler W, Pagitz K, Oberhuber W (2007) Spread of walnut (Juglans regia L.) in an Alpine valley is correlated with climate warming. Flora 202:70–78Google Scholar
  69. Loewenstein NJ, Pallardy SG (1998a) Drought tolerance, xylem sap abscisic acid and stomatal conductance during soil drying: a comparison of canopy trees of three temperate deciduous angiosperms. Tree Physiol 18:431–439PubMedGoogle Scholar
  70. Loewenstein NJ, Pallardy SG (1998b) Drought tolerance, xylem sap abscisic acid and stomatal conductance during soil drying: a comparison of young plants of four temperate deciduous angiosperms. Tree Physiol 18:421–430PubMedGoogle Scholar
  71. Loewenstein NJ, Pallardy SG (2002) Influence of a drying cycle on post-drought xylem sap abscisic acid and stomatal responses in young temperate deciduous angiosperms. New Phytol 156:351–361Google Scholar
  72. Lucier AA, Hinckley TM (1982) Phenology, growth and water relations of irrigated and non-irrigated black walnut. For Ecol Manage 4:127–142Google Scholar
  73. Luedeling E, Zhang M, McGranahan G, Leslie C (2009a) Validation of winter chill models using historic records of walnut phenology. Agric For Meteorol 149:1854–1864Google Scholar
  74. Luedeling E, Gebauer J, Buerkert A (2009b) Climate change effects on winter chill for tree crops with chilling requirements on the Arabian Peninsula. Clim Chang 96:219–237Google Scholar
  75. Luedeling E, Steinmann KP, Zhang M, Brown PH, Grant J, Girvetz EH (2011) Climate change effects on walnut pests in California. Global Change Biol 17:228–238Google Scholar
  76. Maillard P, Deléens E, Daudet FA, Lacointe A, Frossard JS (1994a) Carbon economy in walnut seedlings during the acquisition of autotrophy studied by long-term labelling with 13CO2. Physiol Plantarum 91:359–368Google Scholar
  77. Maillard P, Deléens E, Daudet FA, Lacointe A, Frossard JS (1994b) Carbon and nitrogen partitioning in walnut seedlings during the acquisition of autotrophy through simultaneous 13CO2 and 15NO3 long-term labeling. J Exp Bot 45:203–210Google Scholar
  78. Maillard P, Deléens E, Castell F, Daudet F-A (1999) Source-sink relationships for carbon and nitrogen during early growth of Juglans regia L seedlings: analysis at two elevated CO2 concentrations. Ann For Sci 56:59–69Google Scholar
  79. Mapelli S, Lombardi L, Brambilla I, Lulini A, Bertani A (1997) Walnut plant selection to hypoxic soil resistance. Acta Hortic 442:129–136Google Scholar
  80. Martin GC, Uriu K, Nishijima C (1980) The effect of drastic reduction of water input on mature walnut trees. Hort Sci 15:157–158Google Scholar
  81. Martin U, Pallardy SG, Bahari ZA (1987) Dehydration tolerance of leaf tissues of six woody angiosperm species. Physiol Plantarum 69:182–186Google Scholar
  82. McKenney DW, Pedlar JP, Iverson LR, Hutchinson MF, Lawrence K, Campbell K (2007) Potential impacts of climate change on the distribution of North American trees. Biosci 57:939–948Google Scholar
  83. McLaughlin SB, Nosal M, Wullschleger SD, Sun G (2007a) Interactive effects of ozone and climate on tree growth and water use in a southern Appalachian forest in the USA. New Phytol 174:109–124PubMedGoogle Scholar
  84. McLaughlin SB, Wullschleger SD, Sun G, Nosal M (2007b) Interactive effects of ozone and climate on water use, soil moisture content and streamflow in a southern Appalachian forest in the USA. New Phytol 174:125–136PubMedGoogle Scholar
  85. Millard P, Grelet G-A (2010) Nitrogen storage and remobilization by trees: ecophysiological relevance in a changing world. Tree Physiol 30:1083–1095PubMedGoogle Scholar
  86. Mohan JE, Cox RM, Iverson LR (2009) Composition and carbon dynamics of forests in northeastern North America in a future, warmer world. Can J For Res 39:213–230Google Scholar
  87. Murray G, Byrnes WR (1975) Effect of night temperature on dehardening in black walnut seedlings. For Sci 21:313–317Google Scholar
  88. Naidu SL, DeLucia EH (1997) Acclimation of shade-developed leaves on sapling exposed to late-season canopy gaps. Tree Physiol 17:367–376PubMedGoogle Scholar
  89. Nakicenovic N, Alcamo J, Davis G, Vries Bd, Fenhann J, Gaffin S, Gregory K, Grübler A, Jung TY, Kram T, Rovere ELL, Michaelis L, Mori S, Morita T, Pepper W, Pitcher H, Price L, Riahi K, Roehrl A, Rogner H-H, Sankovski A, Schlesinger M, Shukla P, Smith S, Swart R, Rooijen Sv, Victor N, Dadi Z (2000) IPCC Special Report on Emissions Scenarios (SRES)Google Scholar
  90. Ni B-R, Pallardy SG (1990) Response of liquid-flow resistance to soil drying in seedlings of four deciduous angiosperms. Oecologia 84:260–264Google Scholar
  91. Ni B-R, Pallardy SG (1991) Response of gas exchange to water stress in seedlings of woody angiosperms. Tree Physiol 8:1–9PubMedGoogle Scholar
  92. Ni B-R, Pallardy SG (1992) Stomatal and nonstomatal limitations to net photosynthesis in seedlings of woody angiosperms. Plant Physiol 99:1502–1508PubMedGoogle Scholar
  93. Nicodemus MA, Salifu KF, Jacobs DF (2008a) Nitrate reductase activity and nitrogen compounds in xylem exudate of Juglans nigra seedlings: relation to nitrogen source and supply. Trees 22:685–695Google Scholar
  94. Nicodemus MA, Salifu KF, Jacobs DF (2008b) Growth, nutrition, and photosynthetic response of black walnut to varying nitrogen sources and rates. J Plant Nutr 31:1917–1936Google Scholar
  95. Niinemets U (2007) Photosynthesis and resource distribution through plant canopies. Cell Plant Environ 30:1052–1071Google Scholar
  96. Norby RJ, DeLucia EH, Gielen B, Calfapietra C, Giardina CP, King JS, Ledford J, McCarthy HR, Moore DJP, Ceulemans R, De Angelis P, Finzi AC, Karnosky DF, Kubiske ME, Lukac M, Pregitzer KS, Scarascia-Mugnozza GE, Schlesinger WH, Oren R (2005) Forest response to elevated CO2 is conserved across a broad range of productivity. Proc Natl Acad Sci USA 102:18052–18056PubMedGoogle Scholar
  97. Norby RJ, Warren JM, Iversen CM, Medlyn BE, McMurtrie RE (2010) CO2 enhancement of forest productivity constrained by limited nitrogen availability. Proc Natl Acad Sci USA 107:19368–19373PubMedGoogle Scholar
  98. Pallardy SG, Rhoads JL (1993) Morphological adaptations to drought in seedlings of deciduous angiosperms. Can J For Res 23:1766–1774Google Scholar
  99. Parker WC, Pallardy SG (1985a) Drought-induced leaf abscission and whole-plant drought tolerance of seedlings of seven black walnut families. Can J For Res 15:818–821Google Scholar
  100. Parker WC, Pallardy SG (1985b) Genotypic variation in tissue water relations of leaves and roots of black walnut (Juglans nigra) seedlings. Physiol Plantarum 64:105–110Google Scholar
  101. Parker WC, Pallardy SG (1991) Gas exchange during a soil drying cycle in seedlings of four black walnut (Juglans nigra L) families. Tree Physiol 9:339–348PubMedGoogle Scholar
  102. Paschke MW, Dawson JO, David MB (1989) Soil nitrogen mineralization in plantations of Juglans nigra interplanted with actinorhizal Elaeagnus umbellata or Alnus glutinosa. Plant Soil 118:33–42Google Scholar
  103. Picon-Cochard C, Nsourou-Obame A, Collet C, Guehl J-M, Ferhi A (2001) Competition for water between walnut seedlings (Juglans regia) and rye grass (Lolium perenne) assessed by carbon isotope discrimination and δ18O enrichment. Tree Physiol 21:183–191PubMedGoogle Scholar
  104. Piel C, Frak E, Le Roux X, Genty B (2002) Effect of local irradiance on CO2 transfer conductance of mesophyll in walnut. J Exp Bot 53:2423–2430PubMedGoogle Scholar
  105. Poirier M, Lacointe A, Améglio T (2010) A semi-physiological model of cold hardening and dehardening in walnut stem. Tree Physiol 30:1555–1569PubMedGoogle Scholar
  106. Ponder F Jr (1998) Fertilizer combinations benefit diameter growth of plantation black walnut. J Plant Nutr 21:1329–1337Google Scholar
  107. Rosati A, Metcalf SG, Lampinen BD (2004) A simple method to estimate photosynthetic radiation use efficiency of canopies. Ann Bot 93:567–574PubMedGoogle Scholar
  108. Sakr S, Alves G, Morillon R, Maurel K, Decourteix M, Guilliot A, Fleurat-Lessard P, Julien J-L, Chrispeels MJ (2003) Plasma membrane aquaporins are involved in winter embolism recovery in walnut tree. Plant Physiol 133:630–641PubMedGoogle Scholar
  109. Salifu KF, Jacobs DF, Pardillo G, Schott M (2006) Response of grafted Juglans nigra to increasing nutrient availability: growth, nutrition, and nutrient retention in root plugs. HortSci 41:1477–1480Google Scholar
  110. Salifu KF, Apostol KG, Jacobs DF, Islam MA (2008) Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings. Ann For Sci 65:1–8Google Scholar
  111. Salifu KF, Islam MA, Jacobs DF (2009) Retranslocation, plant, and soil recovery of nitrogen-15 applied to bareroot black walnut seedlings. Commun Soil Sci Plant Anal 40:1408–1417Google Scholar
  112. Schlesinger RC, Funk DT (1977) Manager’s handbook for black walnut. USDA For Serv Gen Tech Rep NC-GTR-38. USDA Forest Service, St PaulGoogle Scholar
  113. Sinoquet H, Le Roux X, Adam B, Améglio T, Daudet F-A (2001) RATP: a model for simulating the spatial distribution of radiation absorption, transpiration and photosynthesis within canopies: application to an isolated tree crown. Plant Cell Environ 24:395–406Google Scholar
  114. Smith CC, Follmer D (1972) Food preferences of squirrels. Ecol 53:82–91Google Scholar
  115. Sperry JS, Nichols KL, Sullivan JEM, Eastlack SE (1994) Xylem embolism in ring-porous, diffuse-porous, and coniferous trees of northern Utah and interior Alaska. Ecol 75:1736–1752Google Scholar
  116. Thompson GW, McComb AL (1962) Growth of plantation black walnut in relation to pH and certain chemical factors of the soil. For Sci 8:322–333Google Scholar
  117. Tinus RW (1976) Photoperiod and atmospheric CO2 level interact to control black walnut (Juglans nigra L.) seedling growth. Plant Physiol 57:106Google Scholar
  118. Tyree MT, Cochard H (1996) Summer and winter embolism in oak: impact on water relations. Ann For Sci 53:163–170Google Scholar
  119. Tyree MT, Cochard H, Cruiziat P, Sinclair B, Améglio T (1993) Drought-induced leaf shedding in walnut: evidence for vulnerability segmentation. Plant Cell Environ 16:879–882Google Scholar
  120. United States Department of Agriculture (USDA) (2009) Summary of California County Commissioner’s reports 2007–2008. USDA, SacramentoGoogle Scholar
  121. Warren JM, Norby RJ, Wullschleger SD (2011) Elevated CO2 enhances leaf senescence during extreme drought in a temperate forest. Tree Physiol 31:117–130PubMedGoogle Scholar
  122. Weinbaum S, Van Kessel C (1998) Quantitative estimates of uptake and internal cycling of 14N-labeled fertilizer in mature walnut trees. Tree Physiol 18:795–801PubMedGoogle Scholar
  123. Weinbaum SA, Muraoka TT, Plant RE (1994) Intracanopy variation in nitrogen cycling through leaves is influenced by irradiance and proximity to developing fruit in mature walnut trees. Trees 9:6–11Google Scholar
  124. Williams RD (1990) Black walnut (Juglans nigra L). In: Burns RM, Honkala BM (eds) Silvics of North America, volume 2—hardwoods. USDA Forest Service, Washington, DC, pp 391–399Google Scholar
  125. Winter M-B, Wolff B, Gottschling H, Cherubini P (2009) The impact of climate on radial growth and nut production of Persian walnut (Juglans regia L) in Southern Kyrgyzstan. Eur J For Res 128:531–542Google Scholar
  126. Wullschleger SD (1993) Biochemical limitations to carbon assimilation in C3 plants—a retrospective analysis of the A/Ci curves from 109 species. J Exp Bot 44:907–920Google Scholar
  127. Wullschleger SD, Post WM, King AW (1995) On the potential for a CO2 fertilization effect in forests: estimates of the biotic growth factors based on 58-controlled exposure studies. In: Woodwell GM, Mackenzie FT (eds) Biotic feedbacks in the global biotic system: will the warming feed the warming? Oxford University Press, Oxford, pp 85–108Google Scholar

Copyright information

© INRA and Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Hardwood Tree Improvement and Regeneration Center, Department of Forestry and Natural ResourcesPurdue UniversityWest LafayetteUSA
  2. 2.Direction de la recherche forestièreMinistère des Ressources naturelles et de la Faune du QuébecQuébecCanada

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