中文摘要：

采用Williams划分十字花科作物根肿病菌生理小种的鉴别系统,对十字花科蔬菜根肿病的云南省42个样品和西藏地区13个样品进行生理小种鉴定。结果表明:从云南省样品中鉴定出9个生理小种,分别为1号、2号、4号、6号、7号、10号、11号、12号和13号,从西藏自治区样品中鉴定出4个生理小种,分别为2号、4号、5号和7号,其中,生理小种4号为这两个地区的优势小种,所占样品的比例分别为61.9%和53.8%。

英文摘要：

We used 4 differential species of Williams A system to identify the main physiological races of pathogens from 42 samples in Yunnan Province and 13 samples from Tibet Autonomous Region suffered from Cruciferous vegetables clubroot.The results showed that 9 physiological races were identified from Yunnan samples.They were NO.1,NO.2,NO.4,NO.6,NO.7,NO.10,NO.11, NO.12 and NO.13.Four physiological races were identified from Tibet samples. They were NO.2, NO.4,NO.5 and NO.7,among which NO.4 was advantages physiological race in these 2 areas,taking 61.9%and 53.8%of the samples, respectively.