Results 251 to 260 of about 15,879,080 (292)
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Root Pressure and Leaf Water Potential
Science, 1966Measurements with thermocouple psychrometers were made of the water potentials of leaves from sunflower and pepper plants which had stood overnight in the dark in nutrient solutions containing carbowax. Similar measurements on the solutions showed that they had lower water potentials than the leaves, although the plants were measurably transpiring ...
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Variation of leaf conductance and leaf water potential in apple orchards
Journal of Horticultural Science, 1984SummaryThe 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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Transpiration and leaf water potentials of wheat in relation to changing soil water potential
Australian Journal of Agricultural Research, 1977Changes 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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Relationships of leaf diffusion resistance of Populus clones to leaf water potential and environment
Oecologia, 1979Leaf diffusion resistance (r 1) of the upper and lower leaf surfaces of several Populus clones was related to leaf water potential (ψ1), light intensity, vapor pressure deficit (VPD), and temperature by intrinsicallylinear, logarithmic multiple regression analyses. Regression equations accounted for up to 80% of variation in r 1 data.
S G, Pallardy, T T, Kozlowski
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Leaf Elongation in Relation to Leaf Water Potential in Soybean
Journal of Experimental Botany, 1977Leaf 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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The Components of Leaf Water Potential I. Osmotic and Matric Potentials
Australian Journal of Biological Sciences, 1967Osmotic potential ('IT) resulting from solutes should be distinguished from matric potential (T) resulting from adsorption by the tissue matrix. The usual methods of measuring so·called "osmotic potential" actually give not only 'IT but also part or all of T.
J Warren Wilson, CW Rose
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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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