文献类型：期刊文献

中文题名：籼型三系杂交稻主要农艺性状配合力研究

英文题名：Study on combining ability of main agronomic characters in three-line indica hybrid rice

作者：李国鹏[1];郭建夫[1];汤能[2]

机构：[1]广东海洋大学农业生物技术研究所;[2]深圳市华脉通信有限公司,广东深圳518040

年份：2007

卷号：34

期号：10

起止页码：3

中文期刊名：广东农业科学

外文期刊名：Guangdong Agricultural Sciences

收录：CSTPCD、、CSCD_E2011_2012、CSCD

基金：广东省"十五"重大科技专项(2003A2010101)

语种：中文

中文关键词：籼型杂交稻;三系法;农艺性状;配合力

外文关键词：indica hybrid rice; three-line system; agronomic characters; combining ability

中文摘要：采用5个不育系(湛A、双青A、万金A、22A、珍汕97A)、5个恢复系(R128、R122、R46-1、R15、直龙),按NCⅡ遗传设计杂交配制25个水稻杂交组合,于2005年晚季对杂种F1的农艺性状进行配合力分析,结果表明:在每穗总粒数方面,亲本一般配合力方差分量同杂交组合的特殊配合力方差分量相当,其他性状受亲本一般配合力效应的影响大于受杂交组合特殊配合力效应的影响;除穗长、每穗实粒数、谷粒宽、谷粒长宽比外,其他性状间母本的一般配合力基因型方差均大于父本的一般配合力基因型方差;此外,单株产量、每穗实粒数、每穗总粒数等性状间的狭义遗传率较低,说明在育种过程中要多考虑特殊配合力及环境间的影响。

外文摘要：Experiment selected 5 male sterile lines （Zhan A, Shuangqing A, Wanjin A, 22 A, Zhenshan 97A ）, 5 restorers （R128,R122,R46-1,R15,Zhilong）. 25 Hybrid rice were made by way of incomplete diallete cross （ NC Ⅱ） design. In order to clarifying the quality of the combining ability in the new male sterile lines ,we analysis combining ability on characters of agronomic in hybrid F, from the late season of 2005, the conclusions axe as follows： （ 1 ）Variance components of GCA were equal to SCA＇s in total grains per plant; affections of male sterile lines affected the offspring much more than restorers in other eharaeters;（2）Means square of GCA in male sterile lines are bigger than GCA in restorers＇ in agronomic characters except spike length,full grains per plant,width of rice and length/width of rice;（3）Research on beritability shows, the beritabilities in narrow sense axe low in grain weight per plant,full grains per plant,total grains per plant. This point out that we should take the interactions between SCA of offspring and environment into account during the course of breeding.