为查清河北省坝上发生的小麦腥黑穗病是网腥还是矮腥,按腥黑穗菌标准鉴定方法作了观察比较. 小麦矮腥黑穗病的典型症状是病株矮化(比健株矮25—66%),分蘖增多(比正常植株增加50%).坝上的病株比健株仅矮8.6—29.7%,而分蘖数差异不甚显著. 坝上腥黑穗病瘘质地有疏松也有稍硬,为探明病瘿质地与孢子形态和萌芽特性的关系,曾把疏松和稍硬的病 In order to find out whether the wheat-shaped smut in Hebei Province is netted or dwarfed, it was observed and compared according to the standard identification method of the blackleg. The typical symptom of the wheat dwarfed smut is the dwarfing of the diseased plants (25-66% of healthy plants), tillers increased (50% more than that of normal plants) .The diseased plants on dams were only 8.6-29.7% shorter than that of healthy plants, but the difference of tillers was insignificant. Loose texture also have a little hard, in order to find out the relationship between the texture and spore morphology and sprouting characteristics, had loose and slightly stiff disease