利用主成分分析方法对36个普通甜玉米(su)品种进行了分析.结果表明:前5个主成分值可以用来表述全部性状的信息.第一主成分为品种的生育期因子,第二主成分为糖分因子,第三主成分为赖氨酸因子,第四主成分为口感因子,第五主成分为鲜果穗产量和外观品质因子.36个甜玉米品种可以分成5类,根据各类的特点可对品种进行集中选择.12个性状可以分成6类,同一类性状可以通过其中的一个进行相关选择。

Utilize the method nf principal components analysis to analyse the 36 varieties of oMinary corn(su). The result showed：The value ofthefirst5 pieces ofprincipal components canindicatetheirfformation ofall propertiesThe first principal component is a factor of breeding time of the variety；The second principal component is a sugarfactor；The third principal component is a lysine factor；The fourth principal colnponent is a gustation factor；The fifthprincipal componentisyield ofthefresh ear ofcorn and quality factor nfthe appearance The 36 varieties of sweet corncan be divided into 5 kinds，and can be selectd according to characteristic of the varieties 12 properties can be divid-edinto 6 kinds．The properties nfthe sallletype can be selected relevantlythroughthe properties of one of them

天津市自然科学基金项目(023804411)