1993年,在安徽省固镇县和淮北市郊小麦根土中采集到两个孢囊线虫群体。其孢囊均呈柠檬形,阴门膜孔为双膜孔型,无下桥,有泡状突,阴门裂较短,属 Mulvey 所分5个组的第三组。这两个群体中的2龄幼虫口针平均长24μm,透明尾与口针长度的比值约为1.6;在扫描电镜下观察唇区类型,属 Stone 划分的6个类型的第四类;侧区有4条侧线形成3条侧带,两条外带与横纹交叉呈网格状。上述特征均与燕麦孢囊线虫(Heterodera avenae)相吻合,故将这两个群体鉴定为燕麦孢囊线虫。 In 1993, two populations of cyst nematode were collected from wheat root soil in Guzhen County and Huaibei suburb of Anhui Province. The cysts were lemon-shaped, the film is a double-membranellar aperture of the diaphragm, no bridge, bubble-like process, the incidence of vaginal cleft is shorter, is the third group Mulvey divided into 5 groups. The larvae of the second instar larvae in both groups had an average length of 24 μm and a ratio of the length of the transparent tail to the stitches of about 1.6. The lip zone type under the scanning electron microscope was the fourth type of the six types divided by Stone. There are 4 sidelines to form 3 sidebands, two outlines and stripes intersecting the grid. The above characteristics are consistent with the Heterodera avenae, so the two groups were identified as Oat cyst nematode.