过去对赤霉病流行规律、预测预报作了不少研究,认为三麦穗期气象特别是雨日决定了发病程度。1973年国内提出了病菌数量是病害流行与否的主导因子,近年国外也有菌量决定发病程度的报导,目前尚无一致意见。现将我们主要研究结果初报于后,以资共同研讨。 In the past, we made a lot of researches on the epidemic regularity and prediction of Fusarium head blight, and concluded that the weather, especially the rainy day, determines the disease incidence in the three wheat spikes. In 1973, the number of pathogens in China was the leading factor in the prevalence of the disease. In recent years, there are reports of the incidence of bacteria in foreign countries, and no consensus has been reached so far. Now the first report of our main findings in the later, to share research.