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用小麦白粉病菌１１个生理小种的混合菌种，对黑龙江省的小麦近缘野生植物的６属１０种的４５份材料进行接种，除１份免疫外，其余均接种成功。用其中６属１０种的３４份小麦近缘野生植物产生的白粉病菌分生孢子对小麦进行回接，亦全部回接成功。小麦白粉病菌生理小种对小麦近缘野生植物的寄生，像在小麦上一样，有明显的寄生专化性。感病小麦近缘野生植物的７７．３％对小麦白粉病菌的感病性，随生育期的推移而急剧下降。文中也讨论了小麦白粉病菌中间寄主的作用。
Inoculation of 45 materials belonging to 6 genera and 10 species of wheat relatives wild plants in Heilongjiang Province was carried out by using mixed strains of 11 physiological races of powdery mildew of wheat, except 1 immunization. Conidia of powdery mildew were produced from 34 wheat relatives of 6 genera and 10 species, and all of them were successfully linked back to wheat. Wheat powdery mildew physiological races parasitized wheat relatives of wild plants, as in wheat, there is a clear parasitization. The susceptibility of 77.3% of the susceptible wheat related wild plants to powdery mildew was sharply decreased with the growth period. The article also discusses the role of intermediate host wheat powdery mildew.