Abstract: Leaf head of Chinese cabbage(Brasszca campestrzs L. ssp. pekznenszs)is the main harvesting organ,therefore cytoplasmic male sterility is an effective method in breeding varieties. In order to select and utilize cytoplasmic male sterile type in Chinese cabbage,3 cytoplasmic male sterile types of Chinese cabbage:Ogu-CMS, Pol-CMS and CMS 96 were compared with their maintenance lines on main biological characteristics in this article. Results showed that Ogu-CMS was decreased accompanying to the mufti-backcrossing,and had less combination ability;Pol-CMS was affected by environmental factors. While CMS96 was a new cytoplasmic male sterile type, it was the best among three CMS materials. CMS96 was not only better than maintenance lines in late-bolting at the early backcrossing stage,and produced higher quantity in propagation but also was stable in male sterility and no decrement with mufti-backcrossing,and had better combination ability. Therefore CMS96 showed wide application on breeding new varieties of Chinese cabbage in the future.

Key words: Chinese cabbage, Cytoplasmic male sterility, Application

CLC Number: 

• S634.1