Summary
Lupins (Lupinus angustifolius and L. cosentinii) growing in 321 containers in a glasshouse were exposed to drought by withholding water. Leaf water potential (Ψ1), and leaf osmotic potential (Ψs) were measured daily as soil water became depleted. Leaf water relations were further assessed by a pressure-volume technique and by measuring Ψs and relative water content of leaves after rehydration. Analysis by pressure-volume or cryoscopic techniques showed that leaf osmotic potential at saturation (Ψs100) decreased from -0.6 MPa in well watered to -0.9 MPa in severely droughted leaves, and leaf water potential at zero turgor (Ψzt) decreased from about -0.7 to -1.1 MPa in well watered and droughted plants, respectively. Relative water content at zero turgor (RWCzt) was high (88%) and tended to be decreased by drought. The ratio of turgid leaf weight to dry weight was not influenced by drought and was high at about 8.0. The bulk elastic modulus (ɛ) was approximately halved by drought when related to leaf turgor potential (Ψp) and probably mediated turgor maintenance during drought. The latter was found to be negatively influenced by rate of drought. Supplying the plants with high levels of K salts did not promote adjustment or turgor maintenance.
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References
Ackerson RC (1982) Synthesis and movement of abscisic acid in water-stressed cotton leaves. Plant Physiol 69:609–613
Boyer JS (1967) Matric potentials of leaves. Plant Physiol 42:213–217
Campbell GS, Papendick RI, Rabie E, Shayo-Ngowi AJ (1979) A comparison of osmotic potential, elastic modulus, and apoplastic water in leaves of dryland winter wheat. Agron J 71:31–36
Cutler JM, Rains DW, Loomis RS (1977) The importance of cell size in the water relations of plants. Physiol Plant 40:255–260
Elston J, Karamanos AJ, Kassam AH, Wardsworth RM (1976) The water relations of the field bean crop. Phil Trans R Soc Lond B 273:581–591
Farrington P, Pate JS (1981) Fruit set in Lupinus angustifolius cv. Unicrop. I. Phenology and growth during flowering and early fruiting. Aust J Plant Physiol 8:293–305
Flower DJ, Ludlow MM (1986) Contribution of osmotic adjustment to the dehydration tolerance of water-stressed pigeonpea (Cajanus cajan (L.)millsp.) leaves. Plant Cell Env 9:33–40
Ford CW (1984) Accumulation of low molecular weight solutes in water-stressed tropical legumes. Phytochemistry 23:1007–1015
Forseth IN, Ehleringer JR (1982) Ecophysiology of two solar tracking desert winter annuals. II. Leaf movements, water relations and microclimate. Oecologia (Berlin) 54:41–49
Gladstones JS (1974) Lupins of the Mediterranean region and Africa. Western Australia Department of Agriculture Bull 26:1–48
Greenway H, Munns R (1980) Mechanisms of salt tolerance in nonhalophytes. Ann Rev Plant Physiol 31:149–190
Hamblin AP, Hamblin J (1985) Root characteristics of some temperate legume species and varieties on deep, free-draining Entisols. Aust J Agric Res 36:63–72
Hellkvist R, Richards GP, Jarvis PG (1974) Vertical gradients of water potential and tissue water relations in Sitka spruce trees measured with the pressure chamber. J Appl Ecol 11:637–667
Henson IE, Jensen CR, Turner NC (1989a) Influence of leaf age and light environment on the leaf gas exchange of lupins and wheat. Physiol Plant (submitted)
Henson IE, Jensen CR, Turner NC (1989b) Leaf gas exchange and water relations of lupins and wheat. I. Shoot responses to soil water deficits. Aust J Plant Physiol 16:401–413
Jane GT, Green TGA (1983) Utilisation of pressure volume techniques and non-linear least squares analysis to investigate site induced stress in evergreen trees. Oecologia (Berlin) 57:380–390
Jensen CR (1981) Influence of water and salt stress on water relationships and carbon dioxide exchange of top and roots in beans. New Phytol 87:285–295
Jensen CR (1982) Effect of soil water osmotic potential on growth and water relations in barley during soil water depletion. Irrig Sci 3:111–121
Jensen CR (1985) Potassium induced improvement of yield response in barley exposed to soil water stress. Irrig Sci 6:117–129
Kim JH, Lee-Stadelmann OY (1984) Water relations and cell wall elasticity quantities in Phaseolus vulgaris leaves. J Exp Bot 35:841–858
Kikuta SB, Richter H (1986) Graphical evaluation and partitioning of turgor responses to drought in leaves of durum wheat. Planta 168:36–42
Ladiges PV (1975) Some aspects of tissue water relations in three populations of Eucalyptus viminalis Labill. New Phytol 75:53–62
Ludlow MM (1980) Stress physiology of tropical pasture plants. Trop Grassl 14:136–145
Ludlow MM, Chu ACP, Clements RJ, Kerslake RG (1983) Adaptation of species of Centrosema to stress. Aust J Plant Physiol 10:119–130
Markhart AH (1985) Comparative water relations of Phaseolus vulgaris L. and Phaseolus acutifolius Gray. Plant Physiol 77:113–117
Mengel K, Arneke W-W (1982) Effect of potassium on the water potential, the pressure potential, the osmotic potential and cell elongation in leaves of Phaseolus vulgaris. Physiol Plant 54:402–408
Morgan JM (1984) Osmoregulation and water stress in higher plants. Ann Rev Plant Physiol 35:299–319
Muchow RC (1985) Stomatal behaviour in grain legumes grown under different soil water regimes in a semi-arid tropical environment. Field Crops Res 11:291–307
Oertli JJ (1984) Water relations in cell walls and cells in the intact plant. Z Pflanzenernaehr Bodenk 147:187–197
Richter H (1978) A diagram for the description of water relations in plant cells and organs. J Exp Bot 29:1197–1203
Shackel KA, Hall AE (1983) Comparison of water relations and osmotic adjustment in sorghum and cowpea under field conditions. Aust J Plant Physiol 10:423–435
Snedecor GW, Cochran WG (1967) Statistical Methods. Sixth Ed. The Iowa State Univ Press, Ames, USA
Stadelmann EJ (1984) The derivation of the cell wall elasticity function from the cell turgor potential. J Exp Bot 35:859–868
Turner NC (1988) Measurement of plant water status by the pressure chamber technique. Irrig Sci 9:289–308
Turner NC, Jones MM (1980) Turgor maintenance by osmotic adjustment: a review and evaluation. In: Turner NC, Kramer PJ (eds) Adaptation of Plants to Water and High Temperature Stress. John Wiley, New York, pp 87–103
Turner NC, Henson IE (1989) Comparative water relations and gas exchange of wheat and lupins in the field. In: Kreeb KH, Richter H, Hinckley TM (eds) Structural and Functional Responses to Environmental Stresses: Water Shortage. SPB Academic Publishing: The Hague, pp 293–304
Turner NC, Begg JE, Rawson HM English SD, Hearn AB (1978) Agronomic and physiological responses of soybean and sorghum crops to water deficits. III. Components of leaf water potential, leaf conductance, 14CO2 photosynthesis and adaptation to water deficits. Aust J Plant Physiol 5:179–194
Turner NC, Stern WR, Evans P (1987) Water relations and osmotic adjustment of leaves and roots of lupins in response to water deficits. Crop Sci 27:977–983
Tyree MT, Richter H (1982) Alternate methods of analysing water potential isotherms. Some cautions and clarifications. II. Curvilinearity in water potential isotherms. Can J Bot 60:911–916
Wenkert W (1980) Measurement of tissue osmotic pressure. Plant Physiol 65:614–617
Wilson JR, Ludlow MM, Fisher MJ, Schulze E-D (1980) Adaptation to water stress of the leaf water relations of four tropical forage species. Aust J Plant Physiol 7:207–220
Wilson JR, Ludlow MM (1983) Time trends of solute accumulation and the influence of potassium fertilizer on osmotic adjustment of water-stressed leaves of three tropical grasses. Aust J Plant Physiol 10:523–537
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Jensen, C.R., Henson, I.E. Leaf water relations characteristics of Lupinus angustifolius and L. cosentinii . Oecologia 82, 114–121 (1990). https://doi.org/10.1007/BF00318542
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DOI: https://doi.org/10.1007/BF00318542