春萝卜雄性不育系4-02A的选育及应用研究

在自然群体中寻找雄性不育源,通过测交、连续回交和父本株自交的方法,筛选保持系,有成了遗传性稳定,不育株率达98％以上的春萝卜雄性不育系4－02A及相应保持系2B;并成功地将4－02A的不育性转育在优良品种自交系91－1上,定名为4－03A,相应保持系为3B.以4－03A为母本培育的杂交一代品种9512春萝卜已开始在生产上试种。

Studies on the Breeding of Male Sterile Line 4-02A in Spring Radish and Its Application

The authors discoved male sterile resource of spring radish (Raphanus Satinus L. Varradicola D. C.) in natural group,and using the methed of testcross,continuous backcross and selfcrossof the male paremt, have bred the stable inheritance male sterile line 4 -02A among that the rate of malesterile plant account for 98% more. The Sterility of 4-02A has been transferred in to the good self-bredline 91-1 successfully, named it 4-03A. To use4-03A as female parent, the hybrid F1"9512" hasbeen bred and applied in culture.