Plant Physiol. Journal of Pharmacology and Experimental Therapeutics
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Plant Physiology 49:644-648 (1972)
© 1972 American Society of Plant Biologists

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Abscisic Acid: Correlations with Abscission and with Development in the Cotton Fruit

Larry A. Davis1 and Fredrick T. Addicott

a Department of Agronomy, University of California, Davis, California 95616

Abscisic acid was measured in developing cotton fruit (Gossypium hirsutum) by means of gas-liquid chromatography. High levels of abscisic acid occurred in correlation with abortion and abscission of young fruit, with low germination of immature seed, and with senescence and dehiscence of mature fruit. Declining or low levels of abscisic acid occurred in correlation with the period of most rapid fruit growth and with high germination of immature and mature seed. Young fruit of cultivar Acala 4-42 contained about twice as much abscisic acid as young fruit of cultivar Acala SJ-1, and this difference is correlated with a higher rate of young fruit abscission in Acala 4-42. Young fruit abscising late in the fruiting season contained about twice as much abscisic acid as young fruit abscising early in the fruiting season.

1 Present address: Alina Farms Corporation, McFarland, California 93250.




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J. J. Lee, A. W. Woodward, and Z. J. Chen
Gene Expression Changes and Early Events in Cotton Fibre Development
Ann. Bot., December 1, 2007; 100(7): 1391 - 1401.
[Abstract] [Full Text] [PDF]


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