Effect of oilcakes on root-knot nematode (Meloidogyne incognita) infecting brinjal

A pot culture experiment was conducted to study the “Effect of oil cakes on root-knot nematode (Meloidogyne incognita) infecting brinjal”. The experiment comprised of eight treatments in order of T_t = Polang oilcake @ 0.5 g/kg soil, T ₂ = Polang oilcake @ 1.0 g/kg soil, T₃ = Polang oilcake @ 1.5 g/kg soil, T₄ = Mahua oilcake @ 0.5 g/kg soil, T₅ = Mahua oilcake @ 1.0 g/kg soil, T₆ = Mahua oilcake @ 1.5 g/kg soil, T₇ = Neem oilcake @ 1.0 g/kg soil (Standard check) and T₈ = Untreated control. Each treatment was replicated thrice following Completely Randomized Design. Except the untreated check, all other treatments showed maximum plant height, better root length, higher dry and fresh weight of shoot and root, maximum root volume and effective in reducing root galls and root knot nematode population in soil over untreated check. Among these various treatments, T₇ where neem cake @ 1.0 g/kg soil (Standard check) and T₆ where Mahua cake @ 1.5 g/kg soil were applied in pot soil, exhibited significantly better result in plant growth parameters and reduction in population growth of root knot nematode and reduced root galls.