本文报导1985～1987年从宁夏川区和山区12个县、市采集的小麦赤霉病病穗标样300多份,单孢分离到350个菌株。经鉴定属于9个种和变种。其中,禾谷镰刀菌(Fusarium gaminearum)为优势种,占63.77%,其次是黄色镰刀菌(F.culmorum),占15.59%。不同县、市的禾谷镰刀菌分离菌株对本区小麦和大麦不同品种和同一菌株对不同品种的致病性,以及同一品种对不同菌株的抗病性都有明显的差异。 This paper reports from 1985 to 1987, from Ningxia Chuan and 12 counties in mountainous areas collected more than 300 spike samples of wheat head spores, isolates from 350 single strains. Identified belong to 9 species and varieties. Among them, Fusarium gaminearum was the dominant species, accounting for 63.77%, followed by F.culmorum, accounting for 15.59%. The isolates of Fusarium graminearum isolates from different counties and cities have significant differences on the pathogenicity of different varieties and strains of the same wheat and barley to different varieties in this area and the disease resistance of different strains of the same variety.