小麦新品种产量性状及主要品质性状的因子分析与聚类分析

Yield characters of new wheat varieties and factor and cluster analysis of their main characters

对河南省2006-2007年小麦区试高肥水组的19个品种的产量性状及主要籽粒品质性状进行因子分析.结果表明:前5个公因子(稳定性因子、湿面筋因子、穗粒数因子、千粒重因子、吸水量因子)的累计方差贡献率达86.96%,反映了所考察性状绝大部分信息.根据不同品种在各公因子上的得分值,将19个供试小麦品种从产量和品质的差异上聚为6大类,并在各类品种的产量与主要品质性状的多元方差分析基础上探讨各类品种改良目标的针对性.

Factor analysis and cluster analysis were conducted to study 12 production and quality traits of 19 varieties,which had been experimented in high fertilizer winter water group in wheat varieties regional trials for two years in 2006 and 2007 years in Henan.The result showed that the cumulative total variance contribution rate of the previous 5 common factors （stability factor, wet gluten factor, grain per spike factor,1000-grain weight factor, water absorption factor）,which reflected most of the characteristic information,to the tested characteristic variation amounted to 86.96% .Six groups had been clustered for the 19 tested varieties from the differences in yield and quality according to the scores of the varieties on the common factors.The improving targets had been discussed through multivariate variance analysis of yield and chief quality characters of every variety.