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Measurement of Leaf Water Potential by the Dye Method

Edward B. Knipling
Ecology
Vol. 48, No. 6 (Nov., 1967), pp. 1038-1041
Published by: Wiley
DOI: 10.2307/1934562
Stable URL: http://www.jstor.org/stable/1934562
Page Count: 4
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Measurement of Leaf Water Potential by the Dye Method
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Abstract

The dye method for measuring leaf water potential is simple, inexpensive, and suitable for both laboratory and field work. Leaves are immersed in a graded series of solutions, and the solution which neither gains nor loses water is assumed to have a water potential equal to that of the leaf. Although limited by certain inherent errors, the dye method can be used to measure relative values and changes in potential. Specific procedures are described for the successful use of the method.

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