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Studies on some viruses infecting onion (Allium cepa L.) plants in Egypt /

Ali Hussein Hamed Mohamed

Studies on some viruses infecting onion (Allium cepa L.) plants in Egypt / دراسات على بعض الفيروسات التى تصيب نباتات البصل فى مصر Ali Hussein Hamed Mohamed ; Supervised Omhasheim Mohammed Elbanna , Gamal Amin Mohammed Ghanem , Hassan Ibrahim Ali Ahmed Elnaggar - Cairo : Ali Hussein Hamed Mohamed , 2011 - 146 P. : charts ; 25cm

Thesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Plant Pathology and Physiology

Two viruses used in this study, Onion yellow dwarf virus (OYDV) and Tobacco rattle virus (TRV), were isolated from naturally infected onion (Allium cepa L.) plant growing in the field of onion plants during the survey carried out in 2007-2008 and 2008-2009 in seven Egyptian Governorates. The results indicated that the mean percentages of OYDV-infection were 24.48 and 19.98% and TRV-infection were 1.04 and 0.42% respectively in first and second seasons all over the seven governorates



Onion yellow dwarf virus Serological detection Tobacco rattle virus
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