论文部分内容阅读
烟草病毒病种类多 ,有烟草普通花叶病、黄瓜花叶病、烟草蚀纹病、马铃薯Ｙ病毒病、烟草环斑病等 ,其中发生普遍、为害严重的有烟草普通花叶病、黄瓜花叶病、烟草蚀纹病。烟草蚀纹病发生为害呈上升趋势 ,部分烟区的发生为害超过普通花叶病和黄瓜花叶病。受害严重时 ,不仅影响产
There are many types of tobacco virus diseases, such as tobacco mosaic disease, cucumber mosaic disease, tobacco erosion disease, potato virus Y disease and tobacco ring spot disease. Among them, common and serious damage include tobacco mosaic disease, cucumber flower Leaf disease, tobacco etchings. The incidence of tobacco etchings is on the rise, and some of the tobacco harms are more harmful than common mosaic and cucumber mosaic diseases. Serious damage, not only affect the production