籼型三系不育系红矮A和恢复系绵恢2009主要性状的配合力分析

Analysis of Combining Ability on the Major Characters of New Rice CMS Line “Hongai A” and Restorer Line “Mianhui 2009”

通过 4个不育系和 5个恢复系所配 2 0个组合 10个性状的方差分析和不育系、恢复系的一般配合力及特殊配合力相对效应值的比较 ,表明籼型新不育系红矮A在千粒重、单株粒重、穗长、结实率等性状上的配合力明显高于珍汕 97A ,其它性状与珍汕 97A具有相似的配合力。绵恢 2 0 0 9穗着粒、穗实粒、单株粒重等性状的配合力明显高于明恢 63,结实率和全生育期与明恢 63具有相似的配合力。

The combining abilities of 10 major characters of 20 rice crosses with 4 CMS lines and 5 restorer lines were analyzed. The result showed that CMS line “Hongai A” was higher than “Zhenshuan 97 A” in the combining abilities of 1000-grain weight, grain weight per plant, panicle length and fructification rate, similar in those of other characters, and restorer line “Mianhui 2009” had a similar combining ability to “Mianhui 63”(check).