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把来自河南、陕西、新疆等8个省、区小麦叶锈菌小种60的16个菌株用8个或16个抗病品种鉴定,可分为4个或6个毒性不同的类型,证明被鉴定是同一小种的各菌株间的毒性不一定相同,而且可以有很大差别。通过毒力频率分析可以看出,用单个菌株对14个品种测定,有许多品种是抵抗的,但把16个菌株作为一个群体来测定,就没有一个品种是抵抗的。为此,建议用同小种的不同菌株的混合群体来测定品种的抗锈性。本研究也指出研究寄主和病原物的相互作用。比先鉴定小种后测定品种要好。
Sixteen strains of Puccinia triticina from eight provinces and regions, including Henan, Shaanxi and Xinjiang, were identified by 8 or 16 resistant varieties and classified into 4 or 6 different types of toxicity, Identification of the same race is not necessarily the same strain of toxicity, but can be very different. By virulence frequency analysis it can be seen that there are many varieties tested against 14 varieties using a single strain, but none of the 16 strains tested as a population are resistant. For this reason, it is recommended to use a mixed population of different strains of the same races to determine the rust resistance of the cultivars. This study also points out the study of host-pathogen interactions. Than after the identification of small species tested better.