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上海地区常年麦类赤霉病穗腐严重,流行频繁,1970～1979十年间,大流行二年(1973、1977)、中度流行五年(1970、1972、1975、1976、1978)、轻病三年(1971、1974、1979)。病害大流行的年份,发病率高达50％以上,损失产量20％以上;中度流行年,发病率达20～50％,损失5％以上。以往着重研究病害的发生、流行和防治,对病原菌的种类,则缺少具体资料。为弄清上海地区麦类赤霉病穗腐病原菌的种类和主要的致病菌,给抗病育种和病害的测报提供依据,我们于1975～1979年,在上海郊区10个县36个公
The annual occurrence of Fusarium head blight in the perennial area in Shanghai was serious and the epidemic was frequent. From 1970 to 1979, the pandemic was two years (1973,1977), the five years was moderately prevalent (1970,1972,1975,1976,1978) Three years (1971, 1974, 1979). Disease pandemic year, the incidence of up to 50% or more, the loss of more than 20%; moderately popular, the incidence of 20 to 50%, the loss of more than 5%. In the past, research focused on the occurrence, epidemic and prevention of diseases and the lack of specific information on the types of pathogens. In order to clarify the species and major pathogens of scab pathogen in wheat in Shanghai, we provided the basis for disease-resistant breeding and disease detection. From 1975 to 1979, we collected 36 strains from 10 counties in Shanghai suburbs