超级杂交稻育种的创新思维与实践  

Practice and creative ideals on super hybrid rice breeding

作　　者：陈立云[1] 

机构地区：[1]湖南农业大学水稻科学研究所,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2007年第S1期21-25,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家"863"计划项目(2006AA100101);国家农业科技成果转化资金资助项目(05EFN214300193);湖南省自然科学基金重点项目(03JJY3033)

摘　　要：超级杂交稻育种的创新思维提出了超级杂交稻育种三步法设想,即超级亲本选育——超级杂交组合选育——超级杂交制种,并详细阐述了各步骤的标准和实现其目标的技术路线;提出了水稻光温敏不育机理新设想:即水稻光温敏核不育系育性转换是主效不育基因与其位置相近的发育感光基因或(和)发育感温基因相互作用的结果,不育基因位点(微效不育基因)可影响两用核不育系的不育起点温度的高低.按照超级杂交稻育种三步法的技术路线,成功选育了父本996和两用核不育系C815S两个超级杂交稻亲本,利用前者选育出适合长江中下游稻区作双季早稻种植的超级杂交早稻组合陆两优996,用后者选配出C两优87和C两优396等增产幅度大、极有应用前景的超级稻新组合.遵循水稻光温敏不育系选育的技术路线,育成C815S,P88S和9771S等实用的水稻两用核不育系.The super hybrid rice breeding strategy,which involved in super parent breeding,super hybrid rice combination breeding and super high hybrid rice seed production,were proposed.The objective of each procedure and the key technologies for achieving the goals were elucidated in detail.A new idea for explaining the mechanism of sterile in P(T)GMS rice was proposed.The transition of sterile to fertile was the result of cooperating regulation of major-effect sterile genes with their adjacent developed photoperiod...

关 键 词：超级杂交稻 育种策略 光温敏核不育 不育机理 

分 类 号：S511[农业科学—作物学]