Effects of single and combined infection of Soybean mosaic virus and Meloidogyne incognita on soybean and replication and pathogenicity of both pathogens

C. C. Iheukwumere, K. E. Dashiell, H. J. W. Mutsaers

Abstract


Effects of single and combined infection of Soybean mosaic virus and Meloidogyne incognita in soybean cultivar TGm 80 and the multiplicity and infectivity of both pathogens in the crop were determined. A significant reduction in most growth and yield components of the soybean and of Bradyrhizobium root-nodules was observed. Combined infections significantly reduced the numbers of root galls, eggs and second-stage juveniles of the root-knot nematode compared to the numbers found with single infection with only the nematode. Combined infections in which virus application preceded that of the nematode caused the most significant inhibition of nematode growth and development.

Full Text:

PDF