Canonical correlation among kernel quality characters in top-quality protein maize
优质蛋白玉米籽粒品质性状组间典型相关性研究

The canonical correlations among kernel quality characters in two top-quality protein maize populations('Zhongqun14QPMC_3'and'Shaanzong 5QPMC_0') 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 characters;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.