THE HYDRAULIC RESISTANCE OF THE SOIL-ROOT INTERFACE — A CAUSE OF WATER STRESS IN PLANTS
作者： P.E. WEATHERLEY
DOI: 10.1016/B978-0-12-325550-1.50029-X
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摘要: Summary Experiments with sunflower plants indicate that at rapid rates of transpiration a perirhizal drop in water potential arises about 8 bars sand or soil, twice as large through the plant. The zone was estimated to extend 0.1 cm from root surface, giving gradient 80 cm-1. Such steep would require hydraulic conductivity soil be several orders magnitude less than estimates obtained experimentally. It is concluded resistance flow soil-root interface.
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