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天水地区是小麦条锈病常发流行区,流行频繁,为害严重,成为本区小麦生产的一个重要限制因素。据观察,小麦条锈病流行与品种感病性的关系密切,凡是种植感病品种,每年都不同程度发生条锈病,感病品种面积愈大,发病愈早,病情愈重,损失愈大。因此,密切注视品种抗性变化动态,及时调整感病品种,防止锈病猖獗发生,至关重要。 1989年天水地区小麦条锈病普遍较重发生,一些品种发病严重,但许多品种经受了考
The Tianshui area is a common epidemic area of wheat stripe rust, which has a high prevalence and serious harm, and has become an important limiting factor for the wheat production in this area. It is observed that the prevalence of stripe rust in wheat is closely related to the susceptibility of cultivars to various types of susceptible cultivars. Stripe rust occurs in varying degrees every year. The greater the area of susceptible cultivars, the earlier onset, the heavier the disease and the greater the losses. Therefore, it is very important to pay close attention to the dynamic changes of variety resistance and timely adjust susceptible varieties to prevent the rampant occurrence of rust. In 1989, the stripe rust of wheat in Tianshui area occurred generally heavier and some varieties were severely morbid but many cultivars were tested