Lower Limit of Water Availability to Plants

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Science  27 Mar 1964:
Vol. 143, Issue 3613, pp. 1460-1462
DOI: 10.1126/science.143.3613.1460


Measurements of transpiration, cell division, and cell enlargement show that no single lower limit of available water can be defined for these three plant processes. The soil-water content at which permanent wilting is exhibited does not represent a true lower limit for any of these.

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