occurrence and distribution of potato virus y strain n (pvy(n)) on celery in iran.celery (apium graveolens) is an important crop grown in many countries. different types of diseases present a major constraint to celery production and can lead to significant reductions in yield potato virus y, the type member of the genus potyvirus(family potyviridae) is one of the causal agents of viral diseases in crops. in the present study, pvy occurring in celery fields was determined as the causal agent of mosaic disease of celery (apium graveolens). the virus is naturally transmitted by ...200920222571
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