玉米营养品质性状及其与产量的相关分析  

Correlation Analyses Among Nutritional Quality Traits and Yield in Maize

作　　者：石海春[1] 柯永培[1] 牛应泽[1] 袁继超[1] 余学杰[1] 赖仲铭[1] 杨志荣[2] 

机构地区：[1]四川农业大学农学院,四川雅安625014 [2]四川大学生命科学学院,成都610064

出　　处：《玉米科学》2006年第5期41-45,共5页Journal of Maize Sciences

基　　金：四川省"十五"育种攻关项目(2001-3-13);四川省应用基础研究项目

摘　　要：研究14份玉米自交系及其采用7×7不完全双列杂交设计组配的49个F1组合的营养品质性状和产量,结果表明,普通玉米多数营养品质性状及产量中亲值与其F1平均值之间存在正相关趋势,实践上应注意选择高值亲本;主要营养品质性状之间、单株产量与大多数营养品质性状之间以及它们的配合力效应值间呈正相关趋势,通过性状相关可间接选择;普通玉米产量与蛋白质含量等多数营养品质性状及其配合力可以同步聚合,但要同步改良其蛋白质品质及其配合力还存在较大困难。The studies on 14 maize inbred lines and its 49 F1 combinations denved trom 7 ×7 incomplete diallel crossing demonstrate. There is a correlation between parent＇s means with F1＇s for most nutritional quality traits and yield, hence the parents with high values should be selected in the breeding practice. For common maize, there is also a positive correlation tends among main nutrient characters and yield along with their combining abilities, in which can be selected indirectly through the trait correlation. The yield and the major nutrient characters like protein content together with its combining ability can be gathered synchronously, there are still, however, a lot of difficulties in improving the protein quality and its combining ability at the same step.

关 键 词：玉米 营养品质 产量 遗传 

分 类 号：S513.033[农业科学—作物学]