【摘 要】
:
小麦条锈病是西藏小麦上主要病害之一。从侵染循环、病菌群体结构、发生区划、为害情况等方面揭示了该病在西藏的发生规律及为害特点。分析了该病在西藏流行的温、湿度条件、
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小麦条锈病是西藏小麦上主要病害之一。从侵染循环、病菌群体结构、发生区划、为害情况等方面揭示了该病在西藏的发生规律及为害特点。分析了该病在西藏流行的温、湿度条件、小麦品种、桥梁寄主等因素。认为小麦主栽品种抗源单一、抗性差、菌源面积大以及锈菌新的生理小种不断产生等是小麦条锈病在西藏流行的主要原因,并通过对小麦条锈病在西藏发生为害特点的分析,针对性地提出了综合防治策略。
Wheat stripe rust is one of the major diseases on Tibetan wheat. From the cycle of infection, the structure of pathogenic bacteria groups, occurrence of zoning, the damage situation reveals the incidence of the disease in Tibet and the characteristics of damage. The prevalence of temperature, humidity, wheat varieties and bridge hosts in Tibet were analyzed. It is considered that the main cultivars of wheat are the main source of the stripe rust of wheat in Tibet due to the single source of resistance, poor resistance, large area of bacterial sources and the continuous production of new race of rust bacteria. Analysis, targeted to put forward a comprehensive prevention and control strategy.
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