小麦锈病是我省小麦的重要病害。实践证明,种植抗病品种是防治小麦锈病最经济有效的措施。但是抗病品种应用中的一个突出问题是品种抗锈性的丧失。小麦锈菌是一种变异性强的专化性寄生菌,容易产生新的小种,而新小种的产生是导致品种抗锈性丧失的主要原因。如五十年代末及六十年代 Wheat rust is an important disease of wheat in our province. Practice has proved that the cultivation of resistant varieties is the most economical and effective measures to control wheat rust. However, a prominent problem in the application of resistant varieties is the loss of variety rust resistance. Wheat rust is a special variability of parasitic bacteria, easy to produce new races, and the emergence of new races led to the loss of the main cause of rust resistance. As the late fifties and sixties