Fu Shouzhong, Qi Cunkou,Tang Jihong.(1989)Breeding of cytoplasmic male sterile line MICMS in Brassica napus L. Actor Agronomica Sinica,15(4):305-309(in Chinese) Fu Tingdong,Yang GS. (1989)Development and studies on three polima cytoplasmic male sterile lines in Brassica napusL. Journal of Huazhong Agricultural University ,8(3):201-207(in Chinese) Li Dianrong. <1984)Research and utilizition of CM5 line 1763A and 6223A in Brassica napus L. Shana.xi Agriculture Sciences ,1 :7-10(in Chinese) Liu Houli. (1985)Rapeseed genetics and breeding. Shanghai Science and Technology Press Yang GS,Fu Tingdong. (1990)Studies on the Shoran 2A cytoplasmic male sterility of Brassica napes L. Journal of Huazhong Agricultural University,9(2):141-147 Yang GS.(1987)Influence of environmental factors on cytoplasmic male starilty in Brassica napes,Oi Crops of China ,3:15-19