الملخص

(Gossypium. hirsutwn - Coker-310) were used to obtain M2 plants for study the morphology, productivity and technological characters of lint traits. The MC2 mutant was obtained after exposure of dry seeds to 10 Krad gamma rays from Co60 source, while MG3 mutant was obtained after 24 hrs treatment with 0.03% colchicine solution. This study was carried out according to complet randbmiz design (CRD) during the summer of 2004-2005. The results showed that MC2 mutant was superior to both wild type and MC3 mutant especially in morphological and technological properties. The results also showed a reduction in chlorophyle A and B in mutant plants. MC3 mutant showed superiority, in some productive properties, on MC3 especially in bolls weight, number of seeds/boll, seed cotton yield/plant and in ginning out-turn. Ml cotton seeds of mosaic leaves mutants (MC2 and MC3) plants