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陇县地处关山、千山山脉东部,陕西省关中最西端。近年来小麦条锈病频发,病害有愈来愈重发展趋势。为什么会出现这种局面,相邻千阳、凤翔等县区为什么有发生,而发生程度不严重呢?为此,通过对陇县的地域、气候、生态条件调查分析,其结论如下:一是陇县是条锈病越冬的菌源基地;二是适宜的气候条件是条锈病发生流行主导因素;三是条锈病防治前移是减少病害发生的重要手段。陇县是条锈病越冬的菌源基地陇县小麦条锈病传播途径:10月上中
Long County is located in Guanshan, Qianshan Mountains in the east, Shaanxi Province in the westernmost. In recent years, wheat stripe rust is frequent, the disease has more and more development trend. Why did such a situation occur, why neighboring counties such as Qianyang and Fengxiang occurred but their degree of occurrence was not serious? Therefore, through the investigation and analysis of the geographical, climatic and ecological conditions in Longxian, the conclusions are as follows: Longxian is the source of overwintering bacteria in the base of the stripe rust. Second, the suitable climatic conditions are the dominant factor in the prevalence of stripe rust. Third, the prevention and control of stripe rust is an important means to reduce the occurrence of diseases. Long County is the source of stripe rust overwintering wheat stripe rust Longxi spread: October on the