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This article in AJ

  1. Vol. 57 No. 4, p. 367-370
    Received: Dec 15, 1964

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Measurement of Water Stress in Cotton Plant Leaf Discs With a Thermocouple Psychrometer1

  1. J. E. Box Jr.2



Peltier psychrometer has been calibrated to measure water activities equivalent to diffusion pressure deficits (DPD's) of 20 to 65 bars suction at 25° C. Cotton leaf discs studied had DPS's from 40 to 65 bars and relative water contents from 94 to 52%, respectively.

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