Over 200 disomie plants with translocations ofcotton were recovered as heterozygotes followingused by four types of treatments:combinedtreatment of seeds with colchicines and Y-rays,irradiation of seeds by fast and thermal neutronsand γ-irradiation of pollen.Numbers oftranslocations obtained were differed in M1, M2and M3 generation after irradiation and aftertreatment by different doses of irradiation. Over 200 disomie plants with translocations ofcotton were recovered as heterozygotes followingused by four types of treatments: combinedtreatment of seeds with colchicines and Y-rays, irradiation of seeds by fast and thermal neutrons and γ-irradiation of pollen. Numbers of translocations obtained were differed in Ml, M2and M3 generation after irradiation and aftertreatment by different doses of irradiation.