黑龙江大葱病毒病原鉴定初报

大葱病毒病普遍发生，是导致产量和品质下降的主要原因。根据大葱病毒的寄主范围、病毒粒体形态、病理超微结构等测定结果，初步鉴定侵染病原属于马铃薯Y病毒科(Potyviridae)，是马铃薯Y病毒属(Potyvirus)的暂定成员，其种子可传带病毒。

Identification of Virus Causing Welsh Onion Disease

Occurrence of Welsh onion virosis is widespread ,it is the main reason to cause the yield and the quality to descend; According to the determined result of host range ,appearance of virus particles and pathological ultramicroscopic structure etc.on Welsh onion virosis ,it can ascertain initially that the virus pathogen which infects Welsh onion belongs to the family of potato Y virus (Potyviridae) it is one of provisional members in the genus of potato Y virus (Potyvirus) ,and it can spread virus by its seeds。