Plant Influence on Water Flow Through Artificial Membranes

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Abstract
This paper describes a simple, reproducible method of monitoring water uptake by plants operating in an ad libitum system. The system consists of a thin microporous membrane interfaced with a water reservoir on one side and potted plant on the other. The plant establishes control over the membrane through its roots, which modify the permeability of the microporous water barrier in accordance with autonomic cycles in growth activity. It was shown that the pattern of water flow is modified in the manner expected by changes in environment that affect whole plant physiology.

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