优质抗稻瘟病水稻不育系蓉18A配合力分析  

Analysis on Combining Ability of Rice CMS Line Rong 18A with Good Grain Quality and Blast Resistance

作　　者：徐敬洪[1] 沈超[1] 蔡良俊[1] 张帆[1] 袁亚章[1] 李志义[1] 杨震[1] 王富全[1] 文勇[1] 

机构地区：[1]成都市农林科学院作物研究所,四川温江611130

出　　处：《杂交水稻》2016年第1期70-73,共4页Hybrid Rice

基　　金：四川省水稻育种攻关项目(YZGG2014-1)

摘　　要：通过双列杂交试验分析了水稻不育系蓉18A的配合力,结果表明,蓉18A产量一般配合力与宜香1A相当,显著高于中9A和与金23A,穗大粒多是蓉18A产量一般配合力较高的主要原因;主要米质性状一般配合力与宜香1A相当,优于中9A和金23A。蓉18A产量和米质性状一般配合力均较高,是选育优质、高产杂交水稻的优良亲本。The combining ability of the rice CMS line Rong 18 A was analyzed using the incomplete diallel mating design. The results showed that the general combining ability（ gca） in yield of Rong 18 A was close to that of Yixiang 1A,but significantly higher than those of Zhong 9A and Jin 23 A. The main reason for a high general combining ability of Rong 18 A was its large panicle with many spikelets. In major grain quality traits,Rong 18 A was as good as Yixiang 1A,but better than Zhong 9A and Jin 23 A. With a higher gca effect both in yield and grain quality,Rong 18 A is a desirable parent to develop hybrid rice combinations with high yield and good grain quality.

关 键 词：杂交水稻 不育系 蓉18A 产量性状 米质性状 配合力 

分 类 号：S511.03[农业科学—作物学] S332