香榧(Torreya grandis Fort.ex Lindl.var.merrilli Hu.)为我国珍贵干果,亦为世界稀有经济树种,具有很高的经济价值。但是,由于香榧品种类型复杂,且多为雌雄异株,结果期较迟,幼年阶段性别不易确定与分布面又窄,因而不利于繁殖推广。为此,我们应用不连续系统盘状聚丙烯酰胺凝胶电泳,对香榧过氧化物酶同工酶进行了分析研究,以寻求香榧性别及其品种类型和品质特性与其过氧化物酶同工酶的酶谱表型关系,为香榧幼年期性别早期鉴定、 Torreya grandis Fort.ex Lindl.var.merrilli Hu. It is precious precious dried fruit of our country and also a rare economic tree species in the world, which has high economic value. However, due to the complexity of the types of sweet potatoes, and mostly dioecious, the results of late, early childhood sex is not easy to determine and distribution of narrow, which is not conducive to breeding and promotion. For this reason, we used Discontinuous System Disc Polyacrylamide Gel Electrophoresis to analyze the peroxidase isozymes of Perilla frutescens, in order to seek the gender and its type and quality characteristics of Perilla frutescens and its peroxidase isoenzyme Of the zymogram phenotype relationship, early identification of the early stage sextantia fragrans,