1914年,E.C.Stackman等首次发现了小麦秆锈菌生理分化现象,并提出了生理小种的概念。小麦锈病根据其侵染、发病部位的差异分为条锈、秆锈和叶锈。四川、重庆地区以小麦条锈病为主。早春3—4月温度适合条锈病的发生,当早春气温偏高时叶锈和秆锈也有可能严重发生。小麦锈病一旦发生后,直 In 1914, E.C.Stackman et al. First discovered the physiological differentiation of wheat stem rust and proposed the concept of physiological races. Wheat rust according to its infection, the incidence of site differences into stripes, stem rust and leaf rust. Sichuan and Chongqing are dominated by wheat stripe rust. March to April in early spring for the occurrence of stripe rust, leaf spring rust and stalk rust may also occur seriously when the spring temperature is high. Wheat rust occurs once it is straight