Results 11 to 20 of about 15,879,080 (292)

Temperature Effect on Leaf Water Potential Measurements [PDF]

open access: yes, 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.
openaire   +3 more sources

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]

open access: yes, 2008
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]

open access: yesJurnal Teknologi & Industri Hasil Pertanian, 2012
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]

open access: yesPlant 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
openaire   +2 more sources

PHYSIOLOGICAL RESPONSES OF COFFEE TREE UNDER DIFFERENT IRRIGATION LEVELS [PDF]

open access: yesEngenharia 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
doaj   +2 more sources

Influence of Temperature Gradients on Leaf Water Potential [PDF]

open access: yesPlant 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
openaire   +2 more sources

Chloroplast Response to Low Leaf Water Potentials [PDF]

open access: yesPlant 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
openaire   +5 more sources

Acclimation of Photosynthesis to Low Leaf Water Potentials [PDF]

open access: yesPlant 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
openaire   +2 more sources

Leaf water potential and leaf extension in a sudax crop [PDF]

open access: yesNew 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
openaire   +1 more source

Differential water-use efficiency and growth among Eucalyptus grandis hybrids under two different rainfall conditions

open access: yesForest 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
doaj   +1 more source

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