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对怒江干热河谷区内芒果种质资源的果实性状进行性状比较、相关性分析和模糊聚类分析。结果表明,该调查地区的芒果种质资源具有丰富的多样性,在所分析的6个性状中变异系数表现为单果重>果实长度>果实宽度>可溶性固形物>果实厚度>可食率,这表明不同性状间存在差异,可根据不同目的加以利用。本文首次对部分芒果果实性状间进行相关性分析,结果发现在所有的性状间的相关系数除可食率与可溶性固形物间未达到极显著相关外,其余性状间相关系数均达到极显著相关,其中可溶性固形物与单果重、果实长度、果实宽度、果实厚度间存在极显著负相关,其余的10个相关系数均表现为极显著的正相关;对58份种质资源进行模糊聚类分析发现,当λ值在0.93～0.98时,所分析的58个单株可聚为3大类。
The fruit traits of mango germplasm resources in Nujiang dry-hot valley were compared by trait analysis, correlation analysis and fuzzy clustering analysis. The results showed that the mango germplasm resources in this survey area are rich in diversity. Among the six traits analyzed, the coefficient of variation showed single fruit weight> fruit length> fruit width> soluble solid> fruit thickness> edible rate, Show that there are differences between different traits, can be used according to different purposes. In this paper, the correlation analysis of some mango fruit traits was carried out for the first time. The results showed that there was a significant correlation between the correlation coefficients of all other traits, except that edible ratio and soluble solids were not significantly correlated, Among them, the soluble solids had extremely significant negative correlation with fruit weight, fruit length, fruit width and fruit thickness, and the other 10 correlation coefficients showed extremely significant positive correlation. The fuzzy clustering analysis of 58 germplasm resources When the value of λ is between 0.93 and 0.98, the 58 individuals analyzed can be grouped into three major groups.