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本文以云南省玉溪市和通海县1981—1986年的调查、试验资料,分析了该省油菜主产区一滇中平坝地区油菜病毒病的流行规律,并建立了预测方法。云南中部处于中亚热带半湿润季风气候区,为低纬度高原,全年气温变化平缓而干湿分明,分为旱季和雨季两季。玉溪和通海的海拔高度分别为1636米和1806米,5月中旬至10月下旬为雨季,11月上旬至5月上旬为旱季,油菜为甘兰型品种,一般在10月上、中旬播种,除幼
Based on the investigation and experimental data from 1981 to 1986 in Yuxi City, Tonghai County, Yunnan Province, this paper analyzed the prevalence of rape virus disease in Zhongpingba area, a major producing region of rape in the province, and established a prediction method. The middle part of Yunnan is located in the semi-humid monsoon climate zone of the subtropics. It is a low-latitude plateau. Its temperature changes are moderate and wet and dry throughout the year, which is divided into dry season and rainy season. Yuxi and Tonghai sea altitude of 1636 meters and 1806 meters, respectively, from mid May to late October for the rainy season, early November to early May for the dry season, rape is a kulan type, usually in October on the mid-sowing, In addition to young