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Effect of Repeated Drought Periods on the Survival of Sorghum Seedlings 1
Author(s) -
Nour Abd Ellatif M.,
Weibel D. E.,
Todd G. W.
Publication year - 1978
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1978.00021962007000030037x
Subject(s) - sorghum , cultivar , drought resistance , agronomy , drought stress , biology , resistance (ecology) , sorghum bicolor , water stress , crop , drought tolerance , horticulture
Drought resistance in crop plants is a highly desired characteristic, but there are no simple laboratory techniques 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.