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华297A是湖南亚华种业科学研究院以优质三系不育系新香A为母本,“金23B//黄金3号/Ⅱ-32B”的稳定优良单株为父本测交,经多代择优回交转育而成的中籼型三系不育系。该不育系具有不育性稳定、农艺性状优良、米质较优、配合力强等特点,2006年1月通过湖南省农作物品种审定委员会审定。所配组合华优75于2007年5月通过四川省农作物品种审定委员会审定,亚华优451和亚华优624分别于2007年和2008年通过湖南省农作物品种审定委员会审定。
China 297A is a genus of Hunan Yahua Institute of Seed Industry with high quality three-line sterile line Xinxiang A as the female parent, "Gold 23B // Gold 3 / Ⅱ-32B , The multi-generation back selection of the best choice of indica three-line CMS lines. The sterile line has the characteristics of sterility stability, excellent agronomic traits, better quality of rice and strong combining ability. It was approved by Hunan Crop Variety Approval Committee in January 2006. The combination of Huayou 75 was approved by the Crop Variety Approval Committee of Sichuan Province in May 2007, and Yahua You 451 and Yahua You 624 were approved by Hunan Crop Variety Approval Committee in 2007 and 2008, respectively.