Interactive effect of Meloidogyne incognita and Fusarium oxysporum on growth and yield of Vigna radiata

An experiment, carried out under pot conditions to study the effect of Meloidogyne incognita (2000 J₂/kg of soil) and Fusarium oxysporum (2×10⁸ spores/kg of soil) alone and in combination on the multiplication of the nematode, wilt disease development and on the growth of Vigna radiata cv. ML-1108, indicated that both the pathogens caused significant reduction in all growth and yield parameters in combination as well as in either of these pathogens alone. Highest reduction in all growth and yield parameters was observed in plants inoculated with nematode and fungus simultaneously followed by nematode 7 days prior

+ fungus post, fungus 7 days prior + nematode post, nematode alone and fungus alone respectively. Root colonization by the fungus was significantly increased in the presence of nematode, whereas, the reproduction factor of the nematode was significantly decreased in the presence of the fungus.