粳型特殊广亲和品种GC9的特性及其利用价值研究  

Characters and application of GC9,a SWCV of Japonica rice

作　　者：梁耀懋[1] 黎坤爱[1] 陆岗[1] 李丹婷[1] 

机构地区：[1]广西农业科学院水稻研究所,广西南宁530007

出　　处：《西南农业学报》2004年第1期16-18,共3页Southwest China Journal of Agricultural Sciences

基　　金：国家"十五"攻关子课题(02-09)

摘　　要：用粳籼糯多元杂交选育而成的粳稻品种GC9具有下列特点:①早粳型,茎秆粗壮、穗大粒多、大粒,经济性状较好;②对粳型测验种和个别籼型测验种杂交育性正常,亚种间亲和谱窄。故特称之为特殊广亲和品种(Specialwidecompatibilityvariety,SWCV);③对培矮64S等部分籼型两用核不育系有专化性的亲和力和强恢复性,配制出的亚种间杂交稻组合表现高而稳定的结实率和充实度以及良好的产量结构和高产潜力,可作为亚种杂交稻的优良粳型恢复系开发利用。此类SWCV拓宽了亚种间杂交稻粳型恢复基因源和选育途径。The GC9,developed from multiple-crossbreeding of Japonica,Indica and glutinous rice,was characterized with:(i)early Japonica type with panicles with larger and more number of grains,strong and thick culm;(ii)normal fertility resulted from cross-test with all the Japonica testing-varieties but ony one or two of the Indica ones,which showed its limited compatibility inter-subspecies;(iii)special compatibility and strong restoring ability to the PTGMS varieties like Peiai 64S,which created some inter-subspecies hybrid combinations with high and stable setting rate and filling and yielding potentiality.It was concluded that GC9 could be used as good Japonica restorer line,to be applied in inter-subspecies hybrid breeding.

关 键 词：粳稻 特殊广亲和性 亚种间杂交稻 恢复系 品种特性 

分 类 号：S511.22[农业科学—作物学]