Results 11 to 20 of about 1,275,779 (302)
Soil moisture and soybean physiology affected by drought in an integrated crop-livestock system [PDF]
Pesquisa Agropecuária Brasileira, 2016 : The objective of this work was to evaluate the impact of grazing intensities after 11 years of an integrated crop-livestock system, under no-tillage, on soil moisture and soybean physiological parameters during a summer season affected by drought.
Amanda Posselt Martins +8 more
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PHYSIOLOGICAL RESPONSES OF COFFEE TREE UNDER DIFFERENT IRRIGATION LEVELS [PDF]
Engenharia Agrícola, 2018 The plant water potential and the leaf temperature are physiological responses of the coffee tree that can be used as indicative of the irrigation management of this crop.
Jéfferson de O. Costa +4 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.
H H, Wiebe, R J, Prosser
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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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Chloroplast Response to Low Leaf Water Potentials [PDF]
Plant Physiology, 1973 Electron transport in chloroplasts isolated from desiccated sunflower (Helianthus annuus L. cv. Russian Mammoth) leaves was compared with electron transport in sunflower chloroplasts in sorbitol-containing media having various osmotic potentials. In media having low osmotic potentials and dichloroindophenol as electron acceptor, the activity for ...
J R, Potter, J S, Boyer
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New Phytologist, 2020 Root access to bedrock water storage or groundwater is an important trait allowing plant survival in seasonally dry environments. However, the degree of coordination between water uptake depth, leaf-level water use efficiency (WUEi) and water potential ...
Ya-Li Ding +4 more
semanticscholar +1 more source
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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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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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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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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