Effect of a cowpea mild mottle virus isolate on growth and yield of bambara groundnut (Vigna subterranea L.)
2005
Offei, S.K., Department of Crop Science, University of Ghana, Legon, Ghana; | Albrechtsen, S.E., Danish Government Institute of Seed Pathology, Ryvangs, Aile 78, HeUerup, Denmark)
A virus isolated from naturally infected bambara ground nut was identified as an isolate of cowpea mild mottle virus on the basis of biological and physical properties, particle morphology and serology. The isolate infected 13 of 16 plant species from five families. Virus particles were flexous elongated rods measuring 630-650 x 13 nm. The virus affected the growth and yield of three varieties of bambara groundnut tested. Biomass production was decreased by about 50 per cent in both field and screen-house grown plants. The yield of all three varieties examined were also reduced (20%) by the virus, although the varieties showed different degrees of susceptibility.
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