籼型三系香稻不育系悠香123A选育与应用

Breeding and Application of Aromatic Indica CMS Line Youxiang 123A in Rice

悠香123A是用香型保持系恒丰B与荃9311B杂交,在F3代选择有香味、性状优良单株与荃9311A测交并连续多代回交选育而成的三系不育系。该不育系具有不育性好、米粒香、抗病性强等特点,于2021年通过福建省农作物品种审定委员会审定。利用悠香123A与长优2所配杂交组合悠香优2号于2021年通过国家品种审定。

Youxiang 123A is a CMS line developed by crossing the fragrant maintainer line Hengfeng B with Quan 9311B,selecting excellent fragrant single plants in the F3 generation to testcross with Quan 9311A and successively backcrossing for multiple generations.With the characteristics of complete male sterility,aromatic grain and strong disease resistance,it was registered by Fujian Provincial Crop Variety Appraisal Committee in 2021.The hybrid combination Youxiangyou 2,derived from Youxiang 123A and Changyou 2,was registered and released to commercial production by the National Crop Variety Appraisal Committee in 2021.