早熟优质水稻三系不育系益9A的选育

Breeding of CMS Line Yi 9A with Early Maturity and Good Grain Quality in Rice

益9A是黄冈市农业科学院、湖北农益生物科技有限公司、湖北省农业科学院粮食作物研究所用温229与巨风B杂交,经系谱法选育至F6代开始与巨风A杂交并连续回交选育而成的早熟优质三系不育系。该不育系生育期短,米质优,中抗稻瘟病,配合力强。益9A及其所配组合益9优447已于2020年通过湖北省品种审定。

Yi 9A,derived from crossing Jufeng A to the F6 plants of Wen 229/Jufeng B and followed by successive backcrosses over years,is a CMS line in rice with early maturity and good grain quality developed by Huanggang Academy of Agricultural Sciences,Hubei Nongyi Biotechnology Co.,Ltd.and Institute of Food Crops,Hubei Academy of Agricultural Sciences.It has short growth duration,fine grain quality,moderate blast resistance and good combining ability.Yi 9A and its hybrid combination Yi 9 You 447 were registered and released for commercial production in Hubei Province in 2020.