摘要
用自选新杂交组合（开24×替423）的种子，通过钴60γ射线诱变获得雄性不育突变体，经与有关轮回亲本连年回交育出不育系，其与有关测验种的杂交育性反应，不同于T、S、双及C型，定名为L2（辽2）型。测定结果表明，对该材料的胞质不育性，较易遇到天然恢复系，也较易找到保持系，便于三系配套应用。抗病性鉴定结果表明，L2型不育性属于一种抗T小种小斑病侵袭的新型抗病细胞质，可适用于全恢式、掺合式或半恢式利用。
L2-type Cytoplasmic Male-sterility is bred by mutation breeding with Co60 in hybrid seeds from new cobination(K24×T423). The restoring reaction of some test lines to the L2-type cytoplasmic male - sterility is different form that of the 'T '、'C', 'M 'and 'Shuang' - types, and is easy to use in breeding Through specialiged experimentsr it was shown that L2 belongs to the type cytoplasmic male-sterility which is not infected to Bipo-laris maydis race T,and can be well used in commecial production.
出处
《玉米科学》
CAS
CSCD
1997年第2期1-4,共4页
Journal of Maize Sciences
关键词
玉米
L2型胞质
三系配套
Male -sterility
L_2 -cytoplasmic
Maize
