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作 者:刘凯[1] 胡刚[1] 杨国才[1] 刘凯[1] 陈志军[1] 李培德[1] 周雷[1] 李三和 韩瑞娟[1] 游艾青 LIU Kai;HU Gang;YANG Guo-cai;LIU Kai;CHEN Zhi-jun;LI Pei-de;ZHOU Lei;LI San-he;HAN Rui-juan;YOU Ai-qing(Research Institute of Food Crops,Hubei Academy of Agricultural Sciences/Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement,Wuhan,Hubei 430064,China)
机构地区:[1]湖北省农业科学院粮食作物研究所/粮食作物种质创新与遗传改良湖北省重点实验室
出 处:《杂交水稻》2020年第1期16-20,共5页Hybrid Rice
基 金:国家重点研发计划“七大农作物育种”专项(2017YFD0100400);国家重点研发计划“粮丰”专项(2018YFD0301300)
摘 要:N550S是以N55S为母本与恢复系中间材料R187/2032杂交选育而成的优质粳型光温敏核不育系。该不育系不育起点温度低,不育性稳定,易繁殖制种,米质优,配合力好,在武汉自然条件下稳定不育期为29 d,2018年8月通过湖北省农作物品种审定委员会的技术鉴定,所配组合粳两优5066(N550S/R366)已进入湖北省晚粳区试续试。N550S,derived from the cross between N55S and an intermediate restorer material from R187/R2032,is a new photoperiod-and thermo-sensitive genic male sterile(PTGMS)line in japonica rice.It has a low critical sterilityinducing temperature and stable male sterility.It also shows good grain quality and high combining ability and is easy to conduct multiplication and hybrid seed production.Under natural conditions in Wuhan N550S has a stable sterile period of about 29 days.In August,2018,it was technically identified by the Crop Variety Appraisal Committee of Hubei Province.Its F1 hybrid Jingliangyou 5066(N550 S/R366)was tested in the 2nd year of regional trial for late japonica rice of Hubei Province.
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