Results 11 to 20 of about 15,879,080 (292)
Temperature Effect on Leaf Water Potential Measurements [PDF]
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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Accounting for sap flow from different parts of the root system improves the prediction of xylem ABA concentration in plants grown with heterogeneous soil moisture. [PDF]
When soil moisture is heterogeneous, sap flow from, and ABA status of, different parts of the root system impact on leaf xylem ABA concentration ([X-ABA]leaf). The robustness of a model for predicting [X-ABA]leaf was assessed.
Egea, Gregorio +2 more
core +5 more sources
MONITORING ON PLANT LEAF WATER POTENTIAL USING NIR SPECTROSCOPY FOR WATER STRESS MANAGEMENT [PDF]
The performance of the calibration model with temperature compensation for on-plant leaf water potential (LWP) determination in tomato plants was evaluated. During a cycle of water stress, the on-plant LWP measurement was conducted.
Diding Suhandy
doaj +2 more sources
Leaf Water Potential of Differentially Salinized Plants [PDF]
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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PHYSIOLOGICAL RESPONSES OF COFFEE TREE UNDER DIFFERENT IRRIGATION LEVELS [PDF]
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
doaj +2 more sources
Influence of Temperature Gradients on Leaf Water Potential [PDF]
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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Chloroplast Response to Low Leaf Water Potentials [PDF]
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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Acclimation of Photosynthesis to Low Leaf Water Potentials [PDF]
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]
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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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
doaj +1 more source

