The tobacco may be infected by PVY and CMV coinstantaneous.
PVY和CMV等病毒可以对烟株进行复合侵染。
The vitro characteristics of PVY in Henan Province were studied by biological methods.
用生物学方法研究了河南烟草马铃薯Y病毒(PVY)的体外特性。
Two year's serological detection indicated that PVY and TMV were the most prevalent viruses in Mengyin.
通过两年的血清学检测，证明pvy和TMV是蒙阴烟区的主要病毒病毒。
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