Results 11 to 20 of about 200,037 (304)
Should we delay leaf water potential measurements after excision? Dehydration or equilibration? [PDF]
BMC Plant BiologyBackground Accurate leaf water potential (Ψw) determination is crucial in studying plant responses to water deficit. After excision, water potential decreases, even under low evaporative demand conditions, which has been recently attributed to the ...
Alicia V. Perera-Castro +3 more
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Exploring aquaporin functions during changes in leaf water potential [PDF]
Frontiers in Plant Science, 2023 Maintenance of optimal leaf tissue humidity is important for plant productivity and food security. Leaf humidity is influenced by soil and atmospheric water availability, by transpiration and by the coordination of water flux across cell membranes throughout the plant.
Byrt, C.S. +5 more
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The Relationship between Transpiration, Root Water Uptake, and Leaf Water Potential
Journal of Experimental Botany, 1979 The effect of changing the transpiration rate on leaf water potential and water balance has been examined to show if permeability of the plant (predominantly the roots) is constant or varies with the transpiration rate. Measurements of leaf effective thickness, water potential, transpiration, and uptake of water by roots were made on sunflower, barley,
Aston, M. J., Lawlor, D. W.
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Temperature Effect on Leaf Water Potential Measurements
, 1973 Silver foil psychrometers were used to monitor water potential in different portions of maize leaves which were subjected to temperature gradients. The psychrometers were preliminarily calibrated over standard NaCI solutions at temperatures ranging from 5°C to 45°C in an aluminum plate apparatus designed to provide uniform temperatures within each ...
Prosser, Rex J.
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Acclimation of Photosynthesis to Low Leaf Water Potentials [PDF]
Plant Physiology, 1984 Photosynthesis is reduced at low leaf water potentials (Psi(l)) but repeated water deficits can decrease this reduction, resulting in photosynthetic acclimation. The contribution of the stomata and the chloroplasts to this acclimation is unknown. We evaluated stomatal and chloroplast contributions when soil-grown sunflower (Helianthus annuus L.) plants
M A, Matthews, J S, Boyer
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Leaf water potential and leaf extension in a sudax crop [PDF]
New Zealand Journal of Agricultural Research, 1977 Abstract Leaf water potentials were measured on leaves at three canopy heights in dryland and irrigated sudax plots. Leaf water potentials of basal tillers ranged from ‐2 to ‐5 bars and those of upper leaves on the main stem fell to ‐13 bars during the daytime. Mid‐canopy leaf water potential ranged from ‐4 to ‐7 bars.
A. C. P. Chu, J. P. Kerr
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Leaf Water Potential of Differentially Salinized Plants [PDF]
Plant Physiology, 1969 Water and osmotic potential energies were measured with thermocouple psychrometers, at intervals during a 4-week period, in growing leaves of bean (Phaseolus vulgaris, var. Blue Lake) and barley (Hordeum vulgare, var. Liberty) plants having roots equally split between 2 differentially salinized nutrient solutions.
M B, Kirkham, W R, Gardner, G C, Gerloff
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Forest Systems, 2020 Aim of the study: To analyze the course of leaf water status, water-use efficiency and growth in Eucalyptus grandis and hybrids throughout seasons with different rainfall. Area of study: The study was conducted in northern Uruguay.
José Gándara +6 more
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Hydraulic trade-off and coordination strategies mediated by leaf functional traits of desert shrubs
Frontiers in Plant Science, 2022 Desert shrubs play important roles in desertification control and vegetation restoration, which are particularly affected by droughts caused by climate change. However, the hydraulic strategies associated with hydraulic functional traits of desert shrubs
Jianqiang Huo +9 more
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Comparisons of Leaf Water Potential and Xylem Water Potential in tomato Plants [PDF]
Australian Journal of Biological Sciences, 1970 The rapidity and convenience of the pressure chamber technique for estimating leaf water potentials, especially under field conditions, has been remarked (Boyer 1967; Kaufmann 1968a, 1968b) and demonstrated (Klepper and Ceccato 1969). However, Kaufmann (1968a) showed that it is necessary to exercise caution .in using measurements made with the pressure
HD Barrs +3 more
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