论文部分内容阅读
甘薯瘟病在国外尚无报导,我国于一九四六年在广东、广西两省首先发生,一九五八年传入湖南、江西,一九六三年传入浙江省平阳县。我省是一九七一年在福鼎县首次发现,据一九七七年普查,全省有30个县、109个公社发生薯瘟,对甘薯产量影响极大,是当前我省甘薯生产上威胁性最大的病害。国内先后开展甘薯瘟研究的有广西、广东、江西、湖南、浙江、福建6个省,以广东、广西、浙江做的工作较多。研究的问题
There were no reports of sweet potato blast in foreign countries. China first occurred in Guangdong and Guangxi provinces in 1946, and was introduced to Hunan and Jiangxi in 1958 and to Pingyang County in Zhejiang Province in 1963. Our province discovered for the first time in Fuding County in 1971. According to the census in 1977, there were 30 counties and 109 communes in the province where plague occurred, affecting the output of sweet potato very much. It is the current production of sweet potato in our province On the most threatening disease. There are 6 provinces including Guangxi, Guangdong, Jiangxi, Hunan, Zhejiang and Fujian which have carried out the research on sweet potato blast in China. There are more jobs in Guangdong, Guangxi and Zhejiang. Research problem