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采用聚丙烯酰胺不连续系统垂直板电泳方法，对22个秋子梨资源的叶片过氧化物酶同工酶谱进行了分析。结果表明．试材间的酶谱有一定的差异．利用系统聚类方法对酶谱进行遗传距离分析，将22个试材分成35个组。
The polyacrylamide discontinuous system vertical plate electrophoresis method was used to analyze the peroxidase isoenzymes of leaves of 22 cultivars of. The results show. There are some differences in the zymogram between samples. Using genetic clustering method to analyze the genetic distance of the zymogram, 22 samples were divided into 35 groups.