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To examine the taxonomic relationships among 13 male Actinidia varieties or accessions by 36 morphological characters, principal component analysis and cluster analysis were carried out. Of 36 characters, hair density on ventral midribs and between ventral midribs, leaf length/leaf width ratio were considered as very useful characters for the classification of Actinidia plants. Number of white dots on branch, full flowering period and flower color also showed significant differences among A. deliciosa, A. chinensis, and wild species. Results of cluster analysis using scores of the principal component indicated that 13 male kiwifruits could be grouped into A. deliciosa, A. chinensis, and wild species phenon at 0.5 of average distance in WMVCA. This result was also very similar to that of RAPD analysis. However, it seems that more characters and species are needed for the exact classification.
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