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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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Measuring Leaf Water Potential
EDIS, 2021 This article summarizes the basic concepts of leaf water potential measurements and two available methods for measuring leaf water potential under field and laboratory conditions. Written by Christian Bartell, Haimanote K.
Christian Bartell +4 more
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Exploring aquaporin functions during changes in leaf water potential. [PDF]
Front Plant Sci, 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 CS +5 more
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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 +2 more
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Revista Brasileira de Engenharia de Biossistemas, 2022 For grasses and other crops in general, soil water potential has been widely studied to determine if there is a deficit or excess of water content in the soil. However, the plant water absorption process is not only modulated by soil water potential but
Sergio André Tapparo +5 more
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Leaf water potential of coffee estimated by landsat-8 images. [PDF]
PLoS One, 2020 Traditionally, water conditions of coffee areas are monitored by measuring the leaf water potential (ΨW) throughout a pressure pump. However, there is a demand for the development of technologies that can estimate large areas or regions. In this context, the objective of this study was to estimate the ΨW by surface reflectance values and vegetation ...
Maciel DA +11 more
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Influence of Temperature Gradients on Leaf Water Potential [PDF]
Plant Physiology, 1977 Water potential was monitored at nine locations along single maize (Zea mays L.) leaf blades with aluminum block in situ thermocouple hygrometers. Water potential showed a continuous decrease toward the tip, with a 2- to 4-bar difference between leaf base and tip under both moist and dry soil conditions.
Herman H. Wiebe, Rex J. Prosser
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The Components of Leaf Water Potential II. Pressure Potential and Water Potential [PDF]
Australian Journal of Biological Sciences, 1967 The relation between the relative water content (R) and the pressure potential can be expressed through the coefficient of enlargement (e). The assumption that e does not vary with R is for many leaves a useful first approximation even when R is so low that pressure potential is negative. e is estimated at between 7 and 84 bars for various leaf types.
J. W. Wilson
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NOTE ON THE DETERMINATION OF LEAF WATER‐POTENTIAL [PDF]
New Phytologist, 1967 SummaryA simplified modification of the micro‐osmometer of Macklon and Weatherley (1965a) for the determination of depressions of water‐potential in leaves, ΔW (DPD), is described.The apparent minimum ΔW of 31/2 atm for non‐transpiring water‐culture plants of Ricinus communis reported by Tinklin and Weatherley (1966) is considered further.
R. Tinklin
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Environmental Factors Influencing Leaf Water Potential of Chrysanthemum1
Journal of the American Society for Horticultural Science, 1983 Abstract A study was conducted to investigate environmental factors which affect leaf water potential (LWP) response of chrysanthemums ( Chrysanthemum × morifolium Ramat).
C. D. Stanley +2 more
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