Abstract: With the electrophoretic technique, we studied the Peroxidas (PER),Catalase (CAT), Esterase (ES), Amylase (AA), Citric acid dehydrogenase (CDH) and Glutemate dehydrogenase (GDH) in leaves of 41 plants from 5 populations with different altitudes and habitats of Deutzia multiradiata W.T.Wang which is endemic to Mt. Jinfo of Nanchuan, China. The bands of those isozymes are scored to construct the two-state data matrix which is caculated by Jaccard, Sokal-Sneath and Sokal-Michener association coefficients clustered with UPGMA and WPGMA respectively. The result reveals that individuals from the same populatin are highly homogenous genetically interprated from bands of the six isozymes, while individuals from the different popula- tions show highly dissimilarities in isozyme bands.

Key words: Numerical analyses, Isozyme variation, Genetic differentiation, Population Deutzia multiradiata