两系杂交稻亲本籼粳程度与配合力及杂种优势的关系  

Relations Among Indica-Japonica Extent and Combining Ability and Heterosis in Two-Line Hybrid Rice

作　　者：严钦泉[1] 阳菊华[1] 伏军[1] 

机构地区：[1]湖南农业大学植物科学技术学院,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2001年第3期163-166,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南省教委资助项目 (98- 18)

摘　　要：为了提高两系杂交稻亚种间杂种优势利用的预见性 ,以籼粳程度不同的 4个两用核不育系和 11个优良父本品系为材料 ,研究和分析了亲本籼粳程度与配合力效应及杂种优势的关系 .结果发现 ,亲本籼粳程度与杂种超亲优势和特殊配合力效应三者之间两两相关显著 ,而亲本籼粳程度。To increase the predication of utilization of heterosis between indic and japonica rice subspecies in two line hybrid rice,the relations among indica japonica extent and combining ability and heterosis were studied by using 4 photo thermo sensitive genetic male sterile lines and 11 excellent male parental lines. The results show that the correlations among the indica japonica extent of parental lines and heterosis over male parent and specific combining ability effect are significant,while the indica japonica extent of parental lines and heterosis over male parent are correlated insignificantly with general combining ability .

关 键 词：两系杂交稻 配合力 杂种优势 亲本籼粳程度 亚种间杂交 

分 类 号：S511[农业科学—作物学] S334.5