摘要
按不完全双列杂交(8×4)设计,对8个美国玉米种质改良系的株高、穗位、穗粒质量等9个主要数量性状的配合力及其遗传参数进行分析。结果表明,自交系20125、41151、41161是比较优良玉米自交系,可直接利用。在育种实践中,株高、穗位和穗行数3个性状宜做早代选择,而其他性状不宜早代选择。
Using 8×4 incomplete diallel cross design,the combining ability and corresponding genetic parameters of 9 characters of 8 maize inbred lines were analyzed.The results showed that the inbred line 20125,41151 and 41161 have higher common combining ability and could be used directly.The analysis of genetic parameters indicated that plant height,ear location height and kernel rows per ear should be considered selection in earlier generation.
出处
《西北农业学报》
CAS
CSCD
北大核心
2011年第5期69-73,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
农业部948项目(2006G03-1)
玉米种质创新与资源利用专项资金
关键词
玉米
自交系
数量性状
配合力
遗传参数
Maize
Inbred lines
Quantitative characters
Combining ability
Genetic parameters