优质蛋白玉米籽粒品质性状组间典型相关性研究  

Canonical correlation among kernel quality characters in top-quality protein maize

作　　者：杨引福[1] 谢恩魁[1] 师公贤[1] 单明珠[1] 

机构地区：[1]西北农林科技大学农学院,杨陵712100

出　　处：《中国生态农业学报》2006年第1期28-33,共6页Chinese Journal of Eco-Agriculture

摘　　要：研究优质蛋白玉米籽粒品质性状组间典型相关性结果表明,2个半硬质胚乳奥帕克-2玉米群体(“中群14QPMC3”和“陕综5号QPMC0”)籽粒物理性状中硬质度、籽粒密度、百粒重与胚比、百粒体积呈负相关效应,营养品质中赖氨酸含量、蛋白质品质性状为其核心,籽粒密度(或硬质度)可作为蛋白质品质的间接选择指标;籽粒物理性状、蛋白质品质性状在赖氨酸产量构成中起决定性作用,全籽粒蛋白质品质与胚乳蛋白质品质紧密相关,而与胚蛋白质品质无关,高赖氨酸高油分育种相统一。The canonical correlations among kernel quality characters in two top-quality protein maize populations （ ＇Zhongqun14QPMC3＇ and＇Shaanzong 5QPMC0＇ ） are studied. The results indicate that the negative correlation effect is shown among hardness, kernel denseness, 100-grain weight and bud rate, and 100-grain volume in the physical charac ters; both lysine content and protein quality are the core characters in the nutrition quality; grain density（or endosperm hardness） is an indirect selecting index of protein quality; grain physical characters and protein quality play an important role in forming lysine; grain protein quality is closely connected with that of endosperm, but it has nothing to do with bud protein quality; and high lysine content and high oil content are unified.

关 键 词：奥帕克-2基因 优质蛋白玉米 籽粒物理性状 营养品质 典型相关性 

分 类 号：S513[农业科学—作物学] S512.1