采用国际通用的甜瓜白粉病鉴定体系13个鉴别寄主，分别对吐鲁番市高昌区、鄯善县、托克逊县春秋两季哈密瓜白粉病病菌种类及优势生理小种进行鉴定，镜检分生孢子推断病原菌均为单囊壳白粉病菌(Podosphaera xanthii)。苗期喷施孢子悬浮液接种、成株期调查自然感病确定吐鲁番市春秋季哈密瓜白粉病菌生理小种均为单囊壳白粉病菌生理小种1。

In this paper， the pathogen species and dominant physiological races of powdery mildew of Hami melon in spring and autumn in Gaochang District， Shanshan County and Toxon County of Turpan City were identified by 13 identification hosts of powdery mildew of muskmelon. Microscopic conidia analysis showed that all the pathogen is Podosphaera xanthii. By the inoculation of spore suspension during seedling stage and the natural susceptibility survey at mature stage， the physiological races 1 of monocystic powdery mildew was identified as the only physiological race of powdery mildew of Hami melon in spring and autumn in Turpan fungus races by.

S436.5

新疆维吾尔自治区科技厅重大科技专项(2016B01009-2)。