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E两优186是袁隆平农业高科技股份有限公司、湖北省农业科学院粮食作物研究所、湖南亚华种业有限公司联合用E农1S与R186配组育成的两系杂交中籼新组合。E农1S和R186是湖北省农业科学院粮食作物研究所利用分子标记辅助选择技术分别育成的抗稻瘟病籼型两系不育系和恢复系,E农1S聚合了稻瘟病抗性基因Pi1、Pi2,R186则含抗褐飞虱基因Bph14、Bph15和抗白叶枯病基因Xa23。该组合参加长江中下游中籼迟熟组绿色通道区域试验,表现出产量高、米质较优、综合抗性较好、熟期适宜等特点,2017年通过国家农作物品种审定委员会审定,审定编号国审稻20176061。介绍了其选育过程、特征特性、栽培及制种技术要点。
E Liangyou 186 is a new two-line indica hybrid rice combination developed by Yuan Longping Agricultural High-tech Co., Ltd., Institute of Food Crops of Hubei Academy of Agricultural Sciences and Hunan Yahua Seed Industry Co., Ltd. E-Nong 1S and R186 are indica two-line CMS lines and restorer lines developed by molecular marker-assisted selection technology in Institute of Food Crops, Hubei Academy of Agricultural Sciences. E-1S aggregates the two genes Pi1 and Pi2 , R186 contains the BPH genes Bph14, Bph15 and the bacterial blight resistance gene Xa23. The combination of the middle-lower reaches of the Yangtze River in the middle-lower reaches of indica late green group regional trials, showing high yield, better quality, comprehensive resistance is good, suitable maturity and other characteristics, in 2017 through the National Crop Variety Approval Committee for validation, validation number State trial rice 20176061. Introduced its breeding process, characteristics, cultivation and seed production techniques.