Serological detection of yam viruses in farmers' fields in Ogun State,Nigeria |
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| Authors: | Olusola O Odedara Emily I Ayo-John Moyosore M Gbuyiro Felicia O Falade Sunday E Agbebi |
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| Institution: | 1. Department of Microbiology , University of Agriculture , Abeokuta (UNAAB), Nigeria sdara@hotmail.com;3. Department of Crop Protection, College of Plant Sciences , University of Agriculture , Abeokuta (UNAAB), Nigeria;4. Department of Crop Production and Protection , UNAAB, Nigeria;5. Department of Microbiology , University of Agriculture , Abeokuta (UNAAB), Nigeria |
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| Abstract: | A field survey was conducted in eight local government areas (LGA) of Ogun state, Nigeria to assess the incidence of viral diseases of yams in the areas. Leaf samples were collected from 90 yam plants which were either symptomatic or asymptomatic. These were bulked into 45 during serological tests and the viruses indexed include yam mosaic virus (YMV); Dioscorea alata bacilliform virus (DaBV) and cucumber mosaic virus (CMV). DaBV was the most prevalent virus on the field with incidence of 48.9% (22/45) followed by YMV which occurred in 42.2% (19/45). CMV had the lowest percentage of incidence; 2.2% (1/45). Of all the LGAs visited, Abeokuta north and Abeokuta south had the highest incidence of YMV and DaBV, respectively. Mixed virus infections were also detected. |
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| Keywords: | serology detection yam yam mosaic virus (YMV) genus Potyvirus Dioscorea alata bacilliform virus (DaBV) genus cucumber mosaic virus (CMV) genus Cucumovirus |
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