几个水稻新恢复系的应用前景分析  

Analysis on Application of some New Restorers in Hybrid Rice

作　　者：游晴如[1] 杨东[1] 马宏敏[1] 涂诗航[1] 董瑞霞[1] 谢鸿光[1] 黄庭旭[1] 林琼[2] 

机构地区：[1]福建省农科院水稻研究所,福州(国家)水稻改良分中心,福建福州350018 [2]福建省种子总站,福建福州350000

出　　处：《中国农学通报》2007年第7期198-202,共5页Chinese Agricultural Science Bulletin

基　　金：国家科技攻关计划"粮食作物可持续超高产理论与技术模式研究-再生稻超高产品种选育"(2004BA520A12-2);农业部超级稻新品种选育与示范项目"华南稻区超级早;晚稻新品种选育与示范"

摘　　要：用8个新恢复系与川香29A(A1)、珍汕97A(A2)、Ⅱ-32A(A3)3个不育系按不完全双列杂交配组24个杂交组合,通过24个组合12个性状的主要性状观测值、配合力及遗传力对几个新恢复系的应用前景进行分析,进而作亲本与组合的优势评价,结果:新恢复系以R9最为理想亲本,R8、R7为较理想亲本;从特殊配合力效应值来看,组合中A2R2、A1R5、A3R9这3个组合较为理想。从性状观测值来看,A2R9、A3R9、A1R3、A1R9、A1R8这5个组合较为理想。Twenty-four combinations were made with eight new breeding restorers and three CMS lines including Chuangxiang 29A （A1）,Zhenshan 97A （A2） and Ⅱ-32A （A3） by incomplete dialled crosses. Forecasted application of eight restorers and estimate ascendancy of the combinations and parents throught analyzing the combining ability and heritability of 12 main agronomic characters. The results showed： in eight restorers, R9 were the most ideality, R8 and R7 were the less. At the effects of SCA, three combinations, A2R2,A1R5,A3R9 were superior. At the aspect of 12 main agronomic characters, the dominance of 5 combinations, A2R9, A3R9, A1R3, A1R9, A1R8, was higher.

关 键 词：杂交水稻 恢复系 不育系 配合力 遗传力 

分 类 号：S511.2[农业科学—作物学]