为了鉴定安徽省栝楼、桔梗、木耳菜和小叶黄杨上的根结线虫种类,并比较不同RKN种群间形态差异,安徽农业大学植物保护学院科研人员运用形态学和酯酶同工酶凝胶电泳特征条带分析方法,对4种寄主南方根结线虫进行了种类鉴定。形态学观察和酯酶同工酶凝胶电泳特征条带分析结果均表明:栝楼、桔梗和木耳菜上的RKN均为南方根结线 In order to identify the root knot nematode species in Castanopsis carnnelle, Campanulaceae, Malus baccata, and Cyclobalanopsis palustris in Anhui Province and compare the morphological differences among different RKN populations, the researchers at Plant Protection College of Anhui Agricultural University applied morphological and esterase isozyme gel electrophoresis The characteristic banding analysis method was used to identify the four host Meloidogyne incognita. Morphological observation and esterase isozyme gel electrophoresis characteristic bands analysis showed that: Rugan, Campanulaceae and Agkistrodon RKN are southern root knot line