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This article in CS

  1. Vol. 15 No. 6, p. 789-793
     
    Received: Apr 23, 1975


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doi:10.2135/cropsci1975.0011183X001500060015x

Leaf Conductance and Leaf Water Status of Sesame Strains in Hot, Dry Climates1

  1. A. E. Hall and
  2. D. M. Yermanos2

Abstract

Abstract

Leaf conductance to water vapor loss was examined as a potential physiological index of yield potential in hot, dry climates. Differences in leaf conductance were observed between some strains of Sesamum indicum L. that were consistent from day to day, in irrigated field environments. Generally, plants with dehiscent capsules had higher leaf conductances and more negative xylem pressure potentials than non-dehiscent plants. These larger leaf water deficits were probably caused by faster transpiration rates that would result from higher leaf conductances in hot, dry weather.

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