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This article in AJ

  1. Vol. 70 No. 3, p. 509-510
    Received: Mar 14, 1977



Effect of Repeated Drought Periods on the Survival of Sorghum Seedlings1

  1. Abd Ellatif M. Nour,
  2. D. E. Weibel and
  3. G. W. Todd2



Drought resistance in crop plants is a highly desired characteristic, but there are no simple laboratory technlques available for screening. The purpose of this research was to study a simple technique of screening for drought resistance in sorghum (Sorghum bicolor (L.) Moench). Ten cultivars were evaluated for drought resistance by subjecting seedlings in flats to four successive cycles of water stress in a controlled environment chamber. The cultivars were selected to represent a range of drought resistance. After the fourth cycle of stress cultivars known to have resistance had the highest survival; e.g., ‘M.35-1’ had a survival of 65% while ‘Karkatib’ had the lowest survival of 10%. The technique appeared to be a simple and effective method of screening for drought resistance.

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