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This article in AJ

  1. Vol. 58 No. 2, p. 195-198
    Received: June 1, 1965

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Effect of Soil Moisture Depletion on Crop Yield and Stomatal Infiltration1

  1. H. D. Fuehring,
  2. A. Mazaheri,
  3. M. Bybordi and
  4. A. K. S. Khan2



Yields of potatoes and maize were considerably reduced as the irrigation interval exceeded one week. Partial closure of stomata as early as two days after irrigation indicated stress on plant growth even when most “available” soil moisture was still present. A linear relationship between degree of Stomatal opening as measured by the oil-drop penetration technique and the length of time after irrigation of various crops was established under field conditions.

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