安徽农业科学2013，Vol.41Issue(6)：2409-2412,4.
杂交粳稻主要农艺性状的配合力及遗传力分析
Analysis of Combining Ability and Heritability of Major Agronomic Characters of Japonica Hybrid Rice
摘要
Abstract
[Objective] The aim was to analyze the combining ability and heritability of major agronomic characters of Japonica hybrid rice, and discuss the law and parameters of the combining ability and heritability of the parents of the three-line. [ Method] 5 BT-type cytoplasmic male sterility(CMS) lines and 40 three-line japonica restorer lines with major difference in 1 000-grain weight were chosen to analyze the combining ability of 9 agronomic characters by way of p×q incomplete diallele cross (NC Ⅱ ) design. [Result] Both general combining ability (GCA) and specific combining ability (SCA) of all the characters were significant at 1% level except for the number of panicles per plant, filled spikelets per panicle, grain weight per plant in which the CCA of female was not significant. The additive variation was principal in days from sowing to heading, plant height, panicle length, panicles per plant, spikelets per panicle, filled spikelets per panicle, seed setting rate, 1 000-grain weight while the nonadditive variation was greater in grain weight per plant. All characters were influenced more greatly by restorer lines than by male sterile lines. The h2N was ordered from high to low as 1000-grain weight, plant height, days from sowing to heading, filled spikelets per panicle, seed setting rate, panicle length, spikelets per panicle, filled spikelets per panicle, grain weight per plant, panicles per plant. [ Conclusion ] The study provides a theoretical basis for selecting and utilizing the heterosis of these CMS lines, restorer lines and their F1.关键词
杂交粳稻/农艺性状/配合力/遗传力Key words
Japonica hybrid rice/Agronomic characters/Combining ability/Heritability分类
农业科技引用本文复制引用
占新春,汪登松,王国朝,付强,吴爽,郑乐娅,童俊,单秀灵,王德志..杂交粳稻主要农艺性状的配合力及遗传力分析[J].安徽农业科学,2013,41(6):2409-2412,4.基金项目
转基因生物新品种培育重大专项(2009ZX08009-106B) （2009ZX08009-106B）
农业部超级稻新品种选育研究项目"长江中下游稻区超级中稻新品种选育与示范" （）
安徽省科技攻关项目(12010302055,11010302184) （12010302055,11010302184）
国家及安徽省现代水稻产业技术体系项目. （）
