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绵香1A是四川绵阳市农业科学研究所以印水型不育系优1A为母本、菲改B香/改B的F2代优良单株为父本测交,并经多代择优回交转育而成的籼型香稻不育系。该不育系育性稳定,农艺性状优良,米质优,所配组合产量高。绵香1A于2004年8月通过四川省技术鉴定,配制的组合绵香576(绵香1A辐/恢576)于2006年通过四川省农作物品种审定委员会审定,国豪国香8号(绵香1A/绵恢725)于2008年通过安徽省农作物品种审定委员会审定。
Mianxiang 1A is a F2 generation male parent with water-inducible CMS in the Mianyang Institute of Agricultural Sciences, Sichuan Province. Indica-derived male sterile line of indica rice. The sterile line has stable fertility, good agronomic traits, high quality rice and high combined yield. Mianxiang 1A passed the technical appraisal of Sichuan Province in August 2004, and the combination of Mianxiang 576 (Mianxiang 1A / Hui 576) was approved by Sichuan Province Crop Variety Approval Committee in 2006, and Guohao Guoxiang No.8 (Mianxiang 1A / Mianhuai 725) was approved by Anhui Crop Variety Approval Committee in 2008.