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研究结果表明,绵阳地区小麦条锈病发生流行很频繁,其流行频率比陕西关中常发区还要高,只要有一定面积的感病品种,条锈病就流行。秋苗发病早,密度大,菌源多,病菌在冬季可不断侵染繁殖、扩展蔓延,没有明显的越冬阶段。在春季,锈病流行早,发展快,3月下旬至4月上旬即达到高峰,病情严重。因此,认为这类流行区可向其它麦区提供菌源,起到菌源传播的桥梁作用。本文还讨论了品种抗性退化和综合防治问题。
The results showed that the occurrence of stripe rust of wheat in Mianyang was very prevalent and the prevalence was even higher than that of the Guanzhong frequent area in Shaanxi Province. Stripe rust was prevalent as long as there was a certain area of susceptible varieties. Autumn seedling incidence of early, high density, bacterial sources, bacteria in the winter can continue to infect propagation, expansion and spread, there is no obvious overwintering stage. In spring, the rust epidemic is early and develops rapidly, reaching the peak from late March to early April, causing serious illness. Therefore, it is considered that such endemic areas can provide the source of bacteria to other grain areas and serve as a bridge for the spread of bacteria. This article also discusses the issues of resistance degradation and integrated control.