在对紫斑牡丹传统品种的形态学性状进行调查的基础上,把数量分类学中的Q型聚类分析方法应用于经鉴定命名的花果叶等性状齐全的16个品种分类,并对34个性状进行了R型聚类分析.Q型聚类分析的结果表明:结实情况、花型、雌蕊状况和雄蕊状况可为品种群下划分品种的标准.R型聚类分析的结果揭示了34个性状特征中,株高和冠幅(r=0.843)、雄蕊数量和雄蕊着生方式(r=0.736)、心皮发育状况和结实(r=0.830)的相关系数均大于0.7,相关性较强.其他性状对进化均具有独立作用.对各性状做主成分分析,研究各性状对植株的贡献率,根据贡献率大小从30个性状指标中选出影响较大的11个:结实情况、花型、雄蕊、雌蕊、色斑、花色、叶、枝长、花径、株高、花瓣内瓣情况.这为以后紫斑牡丹传统品种的分类性状选择起到了一定的指导作用.%Based on the morphological investigation of traditional Paeonia rockii tree, the numerical taxonomic Q-type clustering analysis method was applied to 16 variety identified classifications which have complete characters such as leaf, flower, fruit and so on, and 34 characters of the species were analyzed in cluster of R-type. Q-type clustering analysis results show that the fructification number, petal type, pistil state and stamens state can be taken as the classification standard of the species for the variety group. R-type cluster analysis result reveals that of the 34 characters variety, the correlation coefficients of plant height and crown diameter (r=0. 843), stamen number and the birth of the stamens way (r=0. 736), the development conditions of carpel and fructification O= 0. 830), were all greater than 0. 7, correlation was stronger; other characters had independent functions to evolution. Principal component analysis for the various characters was carried out to study contribution ratio of various characters to plant. According to the contribution rate of 30 selected indicators influencing the 11 traits, such as fruit state, petal type and stamens and pistils, leaf, color spot, branches, flower diameter, flower color, plant height, inside petal shape. The findings provide a guiding role for the future classification in traditional Paeonia rockii tree cultivars.
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