Results 121 to 130 of about 172,267 (159)

An Error in the Calibration of Xylem-water Potential against Leaf-water Potential

Journal of Experimental Botany, 1971
An error occurs in the calibration of xylem pressure potential (Ta;) against leaf-water potential (Tir) when the calibration is made using plant material in which the water stress has been induced artificially after excision. The imposition of water stress after excision affects the T'a: determination more than it affects Tw, consequently the ...
D. W. WEST, D. F. GAFF
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Variation of leaf conductance and leaf water potential in apple orchards

Journal of Horticultural Science, 1984
SummaryThe major random and non-random sources of variation in leaf conductance (g1) and leaf water potential (ψ1) in apple trees were determined from many separate experiments. The variances of both g1 and ψ1 were only weakly dependent on the mean value.
H. G. Jones, I. G. Cumming
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Recovery of Corn Leaf Water Potential After Severe Water Stress

Agronomy Journal, 1978
AbstractThe re‐establishment of vegetative growth after a period of water stress depends on the recovery of leaf water potential after rewatering. If the time to achieve recovery can be reduced, then overall plant production can be increased. This investigation examined the rates and patterns of leaf water potential recovery in corn plants (Zea mays L.)
R. A. Nulsen, G. W. Thurtell
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Leaf Elongation in Relation to Leaf Water Potential in Soybean

Journal of Experimental Botany, 1977
Leaf water potential, turgor pressure, and leaf elongation rate were measured in soybeans grow ing in controlled environment chambers, greenhouses, and outdoors. Plants in chambers had the highest water potentials and turgor pressures, and plants outdoors the lowest.
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Isopiestic Technique: Measurement of Accurate Leaf Water Potentials

Science, 1966
Sunflower 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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Psychrometric Water Potential Analysis in Leaf Discs

1989
The 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
openaire   +1 more source

Leaf Water Potential Response to Transpiration by Citrus

Physiologia Plantarum, 1974
AbstractThis 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, MERRILL R. KAUFMANN, ANTHONY E. HALL   +2 more
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Field Measured and Simulated Corn Leaf Water Potential

Soil Science Society of America Journal, 1978
Abstract The dynamic nature and magnitude of field‐measured leaf water potential for sweet corn ( Zea mays L.) was compared with that predicted by the model TROIKA. Some plant parameters for corn were estimated from the literature and field observation, whereas the moisture ...
D. C. Reicosky, J. R. Lambert
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Transpiration and leaf water potentials of wheat in relation to changing soil water potential

Australian Journal of Agricultural Research, 1977
Changes in the transpiration rate of wheat in drying soils were followed in experiments in which plants were grown in two small weighable lysimeters in a glasshouse. Hourly measurements of soil water potential (?s) were made at three depths in each lysimeter.
KA Seaton, JJ Landsberg, RH Sedgley
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Silver-Foil Psychrometer for Measuring Leaf Water Potential in situ

Science, 1972
The water potential of leaves in situ can be measured without temperature control with a miniature, single-junction psychrometer constructed from silver foil and attached to the leaf with a silver-impregnated, conductive coating. The temperature of the psychrometer has been found to stay within 0.025°C of the temperature of a simulated leaf when the ...
G J, Hoffman, S L, Rawlins
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