水稻普遍矮缩病、黄矮病是我省近几年来水稻生产上较严重的病毒病害,其为害程度逐年增多,严重威胁水稻生产。为探明此二病害测报及防治依据,我们於1973年对其病害带毒率和潜育期作了一些观察,现将初步结果简汇如下。 Rice dwarf disease, yellow dwarf disease is the province in recent years, rice production more serious virus disease, the degree of damage increased year by year, a serious threat to rice production. In order to find out the basis of these two kinds of disease detection and prevention, we made some observations on the disease virulence rate and incubation period in 1973. The preliminary results are summarized as follows.