Diurnal changes in the water relations and transpiration of a soybean crop simulated during the development of water deficits |
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| Authors: | P J Kowalik N C Turner |
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| Institution: | (1) Faculty of Hydrotechnics, Technical University, Majakowskiego 11, PL-80-952 Gda sk, Poland;(2) Lehrstuhl für Pflanzenökologie, Universität Bayreuth, Postfach 30 08, D-8580 Bayreuth, Germany;(3) Present address: Division of Plant Industry, CSIRO, GPO Box 1600, 2601 Canberra City, A. C. T., Australia |
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| Abstract: | Summary A new model for transpiration of a soybean crop is formulated and solved numerically: the model specifically includes the water stored in the plant. It describes the changes in the daily course of transpiration, stomatal behaviour, leaf water potential and leaf temperature as water deficits develop. The calculated values of leaf water potential (Fig. 3) and transpiration (Fig. 5) compared well with measured values observed during the development of water deficits in a soybean crop growing on a grey cracking clay soil. |
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