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Science 2 July 1965:
Vol. 149. no. 3679, pp. 63 - 65
DOI: 10.1126/science.149.3679.63
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Articles

Psychrometric Measurement of Leaf Water Potential: Lack of Error Attributable to Leaf Permeability

H. D. Barrs 1

1 Commonwealth Scientific and Industrial Research Organization, Griffith, New South Wales, Australia

A report that low permeability could cause gross errors in psychrometric determinations of water potential in leaves has not been confirmed. No measurable error from this source could be detected for either of two types of thermocouple psychrometer tested on four species, each at four levels of water potential. No source of error other than tissue respiration could be demonstrated.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Isopiestic Technique: Measurement of Accurate Leaf Water Potentials.
J. S. Boyer (1966)
Science 154, 1459-1460
   Abstract »    PDF »
Root Pressure and Leaf Water Potential.
H. D. Barrs (1966)
Science 152, 1266-1268
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)