典型相关分析在抗虫棉育种中的应用研究

本文运用典型相关和主成分分析方法,对转基因抗虫棉的13个主要数量性状进行了研究,结果表明:转基因抗虫棉的生育性状与产量性状间典型相关极显著,产量性状与品质性状间典型相关达显著水平,生育性状与品质性状间典型相关不显著.前5个主成分因子:产量因子、品质因子、子指铃重因子、早熟因子及伸长率因子可代表一个转基因抗虫棉品种的基本特征,它们的累计贡献率达87.23%.各性状间相互联系,相互影响,在转基因抗虫棉育种中,应注意各性状间的动态平衡,有利于育成优质高产抗虫棉品种.

Reserch of Canonical Correlation and Principal Component Analysis in Breeding Transgenic Cotton

The relationship among 13 principal quantity characters of Transgenic cotton was studied by means of canonical correlation and principal component analysis.The results indicated that the canonical correlation between growing character and yield character was highly significant.The canonical correlation was significant between yield character and fiber quality character.But it was significant between growing character and fiber quality character.The general character of a transgenic cotton variety could be showed by the former 5 factors of yield factor,fiber quality factor,seed index and boll weight factor,earliness factor and fiber elongation factor.The cumulative contribution of the former 5 factors come up to 87.23%.There was a dynamic relationship among the components.In transgenic cotton variety breeding,it is likely to found out the high quality and high yield transgenic cotton variety within the suitable selections among every character.