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(一)气象因子与发病的关系遵照伟大领袖毛主席关于:“外因是变化的条件,内因是变化的根据,外因通过内因而起作用”的教导,我们根据1960-1973年的观察,气象条件(温度、湿度、降雨量),是促使病害发生的诱导因子,尤以降雨量决定湿度直接影响病菌有性孢子的形成及病害的发生。如1970年6月至8月总降雨量为693.4毫米,平均相对湿度为86%,落叶病的发生从感病指数来看为80.1;1968年的6至8月份(降雨量较少),总降雨量为
(1) The Relationship between Meteorological Factors and Outbreak According to the teaching of Chairman Mao on the great leader: “External factors are the conditions of change, internal factors are the basis of change and external factors work through internal factors.” Based on the observations of 1960-1973, Meteorological conditions (temperature, humidity, rainfall) are the inducing factors that promote the occurrence of diseases, especially the rainfall determines the humidity directly affects the formation of pathogenic bacteria spores and the occurrence of diseases. For example, in June-August 1970, the total rainfall was 693.4 millimeters with an average relative humidity of 86%. The incidence of defoliation was 80.1 from the susceptibility index; from June to August 1968 (with less rainfall), total The rainfall is