小麦矮腥黑穗病是小麦的一种重要病害,是我国禁止输入的对外植物检疫对象。河北省坝上发生的小麦腥黑穗病是网腥黑穗病还是矮腥黑穗病,多年来一直存在不同认识。主要原因是坝上小麦腥黑穗病病原与国内其他地区的小麦网腥黑粉菌孢子有些差异,特别是孢子网脊较高、胶质鞘较厚。由于这个原因,坝上小麦腥黑穗病的病原问题自然引起有关方面的注意。关于这两个病害,确实存在形态特征不易明确划分的特点,但事实上它们是可分的。国内外科学工作者在病害症状、病原孢子形态及生理生化等方面都做了不少区分比较工作。为弄清坝上小麦腥黑穗病 Wheat dwarfed smut is a kind of important disease of wheat and is the foreign plant quarantine object forbidden in our country. The occurrence of wheat taulu on Bashang in Hebei Province is either nethead smut or dwarfed smut, and different understandings have existed for many years. The main reason is that there is some difference between the wheat tainted head smut and other parts of the domestic wheat nettle fever spore, especially the spore net ridge is higher and the thicker is the glial sheath. For this reason, the problem of the pathogen of wheat tart on the dam naturally draws the attention of the parties concerned. As for the two diseases, the characteristics of morphological features do not clearly divide, but in fact they are separable. Domestic and foreign scientists in the disease symptoms, pathogenic spore morphology and physiological and biochemical aspects of doing a lot of distinction between the work. To find out the dam on the wheat tangled head smut