The effects of cobalt-60 applications on yield and yield components of cotton (Gossypium barbadense L.)

Abstract

This study was carried out to determine mutation effects and to investigate the positive mutant types that can be emerged as a result of this mutagen effect at Acalpi 952 cotton cultivar. Gamma irradiation was employed at 100, 200, 300 and 400 grey doses at Turkish Atomic Energy Foundation. Irradiated seeds from each dose were sown separately to form M1 generation (first mutation generation) and the surviving seeds were collected afterwards. In M2 generation (second mutation generation), seeds form each plant were grown as one a pice row and some characteristics were studied and 36 lines were selected according to yield and yield components. In M3 generation, 36 lines that selected M2 generation with three standard cultivars were made yield and adaptation experiments according to Complete Block Design with three replications. At the and of studies for three years among 2000-2002 growing period, ACH8, ACH9 and ACH25 lines were find as superior lines according to yield and yield components. On the other hand these lines were obtained high yielded from standard cultivars. © 2006 Asian Network for Scientific Information.