【摘要】 2005年5月,从山东省菏泽市郊区麦田采集土样,分离到褐色和白色胞囊,通过分别对胞囊、2龄幼虫和卵的观察、相关数值测量并拍照,鉴定该种线虫为燕麦胞囊线虫Heterodera avenaeW ollenweber,1924。这是首次在山东省发现该种线虫。该种线虫的主要鉴别特征为:胞囊的阴门下桥不明显,泡状突明显,阴门锥双膜孔,阴门裂长度为11.9±1.1(10.5~15.0)μm;2龄幼虫口针基部球前缘向前突出或平,尾部的透明区较长,长度为44.6±3.3(37.5-54.0)μm,尾末端稍钝。更多还原

【Abstract】 The soil samples were collected from the wheat field in Heze City of Sandong Province in May,2005,the nematode population was identified as Heterodera avenae Wollenweber,1924.This nematode was found in Shandong Province for the first time.The main morphological characters for this nematode were that: a pair of semifenestra on vulval cone,the vulval underbridge not obvious,bullae obvious,the length of the vulval slit 11.9±(1.1)(10.5-15.0) μm.For the second-stage juvenile(J2),the style knobs extrude or horizontal anteriorly,the length of tail hyaline portion 44.6±3.3(37.5-54.0)μm,the end slightly blunt.更多还原