Results 251 to 260 of about 1,275,779 (302)
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NOTE ON THE DETERMINATION OF LEAF WATER‐POTENTIAL
New Phytologist, 1967SummaryA 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.
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Australian Journal of Experimental Agriculture, 2000
The water potentials of canola branches and leaves were compared using a pressure chamber to determine whether they produced similar results. This study also investigated the magnitude of errors in the water status of canola resulting from re-cutting the branches, and the effects of delaying readings.
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The water potentials of canola branches and leaves were compared using a pressure chamber to determine whether they produced similar results. This study also investigated the magnitude of errors in the water status of canola resulting from re-cutting the branches, and the effects of delaying readings.
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Isopiestic Technique: Measurement of Accurate Leaf Water Potentials
Science, 1966Sunflower leaf tissue of known potential was obtained by equilibrating an interveinal leaf sample, at constant temperature in air, with a potential determined by sucrose solutions. Equilibration occurred within 17 hours. Except for one determination, all measurements of the water potential of the equilibrated samples with an isopiestic technique were ...
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Leaf Water Potential Response to Transpiration by Citrus
Physiologia Plantarum, 1974AbstractThis paper reports on further studies of a model for interpreting leaf water potential data for Citrus. Experimental data confirmed the assumption that the ratio of vapor pressure deficit to leaf diffusion resistance adequately estimates transpiration when leaf‐to‐air temperature differences are small.
SAUL E. CAMACHO‐B +2 more
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The Evaluation of a Leaf-Water Potential Function for Corn
Transactions of the ASAE, 1981ABSTRACT AN attempt was made in 1978 to estimate leaf-water potential from soil and atmospheric parameters with a simplified, theoretically based model explaining water movement thru the soil-plant-atmosphere system. The soil water potential at a 30 cm depth and the vapor pressure deficit were used as variables.
null F. R. Lamm +2 more
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Psychrometric Measurement of Leaf Water Potential: Lack of Error Attributable to Leaf Permeability
Science, 1965A report that low permeability could cause gross errors in psychrometric determinations of water potential in leaves has not been confirmed. No measurable error from this source could be detected for either of two types of thermocouple psychrometer tested on four species, each at four levels of water potential.
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Psychrometric Water Potential Analysis in Leaf Discs
1989The importance of water potential (Ψ), and its components, in studies of plant-water relations is well recognized (Kramer 1983; Turner and Burch 1983). Although numerous methods are currently available for monitoring plant-water status, the use of thermocouple psychrometers for the determination of leaf Ψ under both field and laboratory conditions is ...
D. M. Oosterhuis, S. D. Wullschleger
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Relation of Soybean Leaf Water Potential to Soil Water Potential1
Agronomy Journal, 1974AbstractEstimation of plant water potential is a possible aid in irrigation scheduling. This work examined the relation of maximum and minimum soybean (Glycine max (L.) Merr.) leaf water potential to soil water potential. Maximum readings were taken near sunrise and minimum readings were taken between 1300 and 1500 CDT.
R. A. Brady +3 more
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Arctic and Alpine Research, 1971
Leaf water potential of Picea engelmannii and Abies lasiocarpa was measured throughout the year in the Medicine Bow Mountains, Wyoming. Winter-exposed needles of trees at timberline (3,300 m) exhibited severe water stress during the winter (-30 to -35 ...
J. Lindsay
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Leaf water potential of Picea engelmannii and Abies lasiocarpa was measured throughout the year in the Medicine Bow Mountains, Wyoming. Winter-exposed needles of trees at timberline (3,300 m) exhibited severe water stress during the winter (-30 to -35 ...
J. Lindsay
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The Relationship between Leaf Water Potential and Stem Diameter in Sorghum
Agronomy Journal, 2001Leaf water potential (ψl) represents a good indicator of the water status of plants, and continuous monitoring of it can be useful in research and field applications such as scheduling irrigation. Changes in stem diameter (Sd) were used for monitoring ψl of pot‐grown sorghum [Sorghum bicolor (L.) Moench] plants in a glasshouse.
Yatapanage, Kamal G., So, Hwat Bing
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