Effect of Selected -Irradiated Cotton Varieties on Fiber Quality During M2 Generation under Rainfed Condition (original) (raw)

Several studies have been conducted on radiation effects on organisms. Although most of the interest has been on humans, yet during the last few years increasing attention has been directed to other organisms, focusing on an ecosystem perspective with the intention of defining safe levels of radiation. In this study, we looked at low dose effects of gamma radiation on cotton at the Co-60 source at as, analyzing parameters such as fiber quality and yield parameters including lint percentage, staple length, fiber fineness (Micro-naire), fiber strength, seed yield and cotton yield. Improved varieties of cotton were selected from Cotton Research Institute, Multan and were treated with cobalt source at the rate of 0, 10, 15, 20 and 25 Krades. Three potential cotton varieties i.e Gomal-93, Bt-131 and Bt-CIM-602 previously irradiated @ 15, 20 and 25 KR respectively were selected from among the six varieties. Seeds of these three commercial varieties of cotton (G. hirsutum) were sown in May...