籼型水稻三系不育系峰晟A的选育

Breeding of Indica CMS Line Fengsheng A in Rice

峰晟A是以印香25B与常规品种南京301去雄杂交,2009年以印香25B×南京301 F1代作父本、中98-4作母本去雄杂交,F2代选优良单株与金23A测交并连续多代回交转育而成的籼型三系不育系。该不育系不育性稳定、不育度高、配合力强、异交结实率高,适合选配早籼早中熟、晚籼类型杂交稻组合。峰晟A于2018年通过湖南省鉴定,利用其所配杂交组合峰晟优9113(峰晟A/R9113)于2019年通过湖南省品种审定。

Fengsheng A, derived from the cross of Jin 23 A///Zhong 98-4//Yinxiang 25 B/Nanjing 301, is an indica CMS line developed by successively backcrossing over years. It has complete and stable male sterility, strong combining ability and high outcrossing rate, and it is suitable for developing hybrid combinations of early-to-middle maturing early indica hybrid rice and late indica hybrid rice. It was technically identified in Hunan Province in 2018, and its hybrid combination Fengshengyou 9113(Fengsheng A/R9113) was registered and released in Hunan Province in 2019.