Results 11 to 20 of about 172,267 (159)

Response of Leaf Water Potential, Stomatal Resistance, and Leaf Rolling to Water Stress [PDF]

open access: yesPlant Physiology, 1980
Numerous studies have associated increased stomatal resistance with response to water deficit in cereals. However, consideration of change in leaf form seems to have been neglected. The response of adaxial and abaxial stomatal resistance and leaf rolling in rice to decreasing leaf water potential was investigated.
J C, O'toole, R T, Cruz
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

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 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

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

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

Hydraulic trade-off and coordination strategies mediated by leaf functional traits of desert shrubs

open access: yesFrontiers 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
doaj   +1 more source

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

Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants [PDF]

open access: yesCiência e Agrotecnologia, 2020
Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and
Gabriel Martins Almeida   +5 more
doaj   +1 more source

Comparisons of Leaf Water Potential and Xylem Water Potential in tomato Plants [PDF]

open access: yesAustralian 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
openaire   +1 more source

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