Department of Genetics and Plant Breeding, Calcutta University 35, B.C.Rd., Kolkata-700 019
*Present address: H.No. 808, Model Town, Panipat - 132 103, Haryana, E-mail: surdg@rediffmail.com
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Seed viability of six cotton (Gossypium hirsutum L.) strains differing in salt tolerance was measured both in control and different seed treatments. It was found that bleaching powder treated seeds survived the most. Linoleic and linolenic acid composition was measured and it was found that unsaturation of fatty acids was greater in salt susceptible varieties. It was also seen that salt susceptible varieties lost viability sooner due to peroxidation of unsaturated fatty acids, and greater the unsaturation, greater were the chances of peroxidation. Vitamin E, an anti-oxidant, which prevents peroxidation of unsaturated fatty acids, was found to be in greater amounts in salt tolerant varieties, with greater viability.
Ageing, cotton, fatty acids, tocopherols, viability, vigour
