甘薯贮藏期和育苗期主要病害发生情况调查初报

通过甘薯种薯不同地区不同贮藏方式,病害优势种类及育苗期软腐病和病毒病发生情况的调查。结果表明：种薯贮藏期的病害主要有甘薯软腐病、黑斑病、茎线虫病；育苗圃的病害主要有软腐病和病毒病,洛阳供试种薯发生率分别是9.60%和2.40%,开封供试种薯发生率分别是46.20%和37.40%。

Preliminary investigation on the occurrence of main diseasesof sweet potato during storage and seedling stage

The investigation on the occurrence of soft rot and virus dixease of sweet potato seed tubers was carried out in different areas, different storage methods, dominant species of diseases and seedling stage. The results showed that the main diseases of seed tubers during storage were soft rot, black spot and stem nematode of sweet potato, and the main diseases in nursery were soft rot and virus. The occurrence rates of seed tubers in Luoyang were 9.60% and 2.4% respectively, the incidence of seed potato in Kaifeng was 46.20% and 37.40% respectively.