主成分分析在春大棚黄瓜高产育种中的应用

The Application of Principal Component Analysis in Spring Protective Cucumber Breeding

摘要:

笔者应用主成分分析方法分析了近年来适合于春大棚18份黄瓜材料的7个数量性状。根据主成分分析原理，确定3个主分量性状。按主分量值的大小，利用主分量性状的综合性及相互独立性进行方向性综合选择，选出了综合性状优良的杂交组合及亲本材料。实践证明，用该法评价春大棚黄瓜组合及亲本材料与育种实践是一致的。

Abstract:

By the method of principal component analysis, seven quantitative characters of 18 cucumber varieties that are adapted to spring protective cultivation have been studied Three principal components characters were determiued according to the princide. The comprehensive and independent characters were applied to oriented comprehensive selection. And we get optimum hybrids and parents materials. According to the experimental results , the estimation of genetic components and parents materials of spring protective cucumber is agreed with usual breeding practice.