5个玉米自交系配合力分析及应用评价

The Combining Ability Analysis and Applied Evaluation of 5 Maize Inbred Lines

按P1×P2不完全双列杂交设计,用NCⅡ分析方法,对引入的5个法国玉米自交系的9个性状的配合力及其群体遗传参数进行研究。结果表明:引3和引4一般配合力高,其综合性状较好;在育种工作中对玉米的生育期等性状宜早代选择,而对单株粒重等性状应进行晚代选择。

WANG Hong-xia, XU Chong-xiang, ZUO Shu-zhen, MIN Li, XU Jia （ 1. The Crop Research And Breeding Center of Heilongjiang Province, Harbin, Heilongjiang 150090 ;2. Scientific Research Institution of Land-reclamation General Bureau of Heilongjiang Province, Harbin, Heilongjiang 155811, China） Abstract ：The 5 france maize inbred lines have been tested on the paper with the design of P1 × P2 uncomplete diallel crossing of NC I1 method to study on combining ability and its genetic parameters of 9 characters. The result indicated that the lines of Yin 3 and Yin 4 with the higher common combining ability, the better properties. Breeding work in the maize growing period to early generation traits such as growing period, and characters such as ear weight of the plant should be carried out late generations Options.