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45A是四川省农业科学院水稻高粱研究所1991年以辽宁铁岭市农科院育成的粳质保持系TL169-239B为母本与本所育成的糯质保持系72B为父本杂交,从F2分离群体选择糯质单株与Tx623A回交转育,于1998年育成的高淀粉高配合力糯质高粱不育系,已育成审定10个杂交高粱品种通过国家和省市审定,其育种方法获国家发明专利授权(专利号:ZL 2012 1 0129155.6),45A获得农业部植物新品种权保护(品种权号:CNA20090576.1)。该文总结了45A的选育过程及45A不育系和其所配杂交高粱的特征特性,最后介绍了45A高产繁殖和杂交高粱制种技术要点,为该不育系进一步推广应用提供资料。
45A is the Institute of Rice Sorghum of Sichuan Academy of Agricultural Sciences In 1991, the japonica maintainer line TL169-239B, which was bred by Tieling Academy of Agricultural Sciences in Liaoning Province, was used as the female parent and the waxy maintainer line 72B, Select waxy single plant and Tx623A backcross breeding, bred in 1998 with high starch high with waxy sorghum CMS has been bred 10 varieties of hybrid sorghum approved by the state and provincial and municipal, its breeding method by the national invention Patents granted (Patent No .: ZL 2012 1 0129155.6), 45A Department of Agriculture new plant variety rights protection (variety number: CNA20090576.1). This paper summarized the breeding process of 45A and the characteristics of 45A CMS and its hybrid sorghum. Finally, the key techniques of 45A high yielding and hybrid sorghum seed production were introduced, which provided information for further popularization and application of this CMS line.