Pathogenic potential of root-knot nematode Meloidogyne incognita and root-rot fungus Fusarium solani on chilli (Capsicum annuum L.)

Abstract

Damaging threshold levels of root-knot nematode Meloidogyne incognita and root-rot fungus Fusarium solani on plant growth parameters, viz., plant length, fresh and dry weight of chilli were determined by conducting their pathogenicity trials in pot experiments. The results revealed a significant reduction in the plant growth parameters at and above the inoculum level of about 1000 J₂ per plant of M. incognita and the highest reduction was recorded at 8000 J₂ per plant. Significant reduction in plant growth parameters was recorded at 1.00 g mycelial mat of F. solani per plant, while the highest reduction was observed at 8.00 g mycelial mat per plant. The damaging threshold level was 1000 J₂ per plant of M. incognita and 1.00 g mycelial mat of F. solani.

Keywords:

• pathogenicity
• chilli
• Meloidogyne incognita
• Fusarium solani
• inoculum