The rate of senescence and the soluble protein profile from the detached soybean leaf senescing either in darkness or light was analysed and compared to those of leaves in which senescence was delayed by application of cytokinin, IAA or enhanced through the action of abscisic acid. Senescence of detached leaf in light differed significantly from senescence in darkness. The chlorophyll and protein were lost at a higher rate in darkness than light. Changes observed during incubation in light or darkness appeared to be related to the condition rather than the rate or progress of senescence. Incubation with IAA delayed senescence only moderately as compared to BA. Cytokinins delayed and ABA accelerated the changes in soluble protein profile compared to water.
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Tamil Nadu Agricultural University
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Madras Agricultural Journal (MAJ)
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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