Article
A hydraulic model is compatible with rapid changes in leaf elongation under fluctuating evaporative demand and soil water status.
Plant physiology - 1 Apr 2014
Caldeira Cecilio F, Bosio Mickael, Parent Boris, Jeanguenin Linda, Chaumont François, Tardieu François
Abstract excerpt
Plants are constantly facing rapid changes in evaporative demand and soil water content, which affect their water status and growth. In apparent contradiction to a hydraulic hypothesis, leaf elongation rate (LER) declined in the morning and recovered upon soil rehydration considerably quicker than transpiration rate and leaf water potential (typical half-times of 30 min versus 1-2 h). The morning decline of LER...
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