Systematic Error in Leaf Water Potential Measurements with a Thermocouple Psychrometer

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Science  30 Oct 1964:
Vol. 146, Issue 3644, pp. 644-646
DOI: 10.1126/science.146.3644.644


To allow for the error in measurement of water potentials in leaves, introduced by the presence of a water droplet in the chamber of the psychrometer, a correction must be made for the permeability of the leaf.