核质互作型低温敏不育系363S育性转换规律及育性遗传  

Fertility Conversion and Heredity of New Genetic cytoplasmic male Sterile Rice Line 363S with Thermo photo sensitivity

作　　者：王志 吴凡 王茂理 龙太康 李发生 

机构地区：[1]绵阳市农科所 [2]江油市种子公司

出　　处：《西南农业学报》1998年第S2期115-118,共4页Southwest China Journal of Agricultural Sciences

摘　　要：研究了两系核不育水稻３６３Ｓ的育性转换规律和育性的遗传。初步认为３６３Ｓ是一个低温诱导的雄性不育，而高温、短日诱导的可育的光温敏核质互作型雄性不育系。在绵阳６～７月的自然长日下，其育性转换的临界温度约２６℃，经１２ｈ的短日处理，其育性转换的临界温度约２４℃。用恢复系和保持系测定，Ｆ１代植株的育性有明显近似野败不育系的恢保关系。Ｆ１代前期不育的植株。The fertility conversion and heredity of a new genetic male sterile rice line 363S were studied.The results showed that 363S was sensitive to photoperiod and temperature,low temperature and short photoperiod make it fertile.The critical temperature for fertility conversion was about 26℃ under the condition of natural photoperiod and about 24℃ under the condition of 12hr.short photoperiod treatment.If the restorer and maintainer lines of the wild type CMS rice lines were used to test 363S,the F1 plants showed a restorer and maitainer relationship like the wild type CMS rice line.The F1 plants were sterile in early growing stage,its fertility conversion seemed like that of 363S line.

关 键 词：水稻 光温敏性 育性转换 遗传 

分 类 号：S511.1[农业科学—作物学]