Varietal Susceptibility and Disease Resistance of Tomato Cultivars against Meloidogyne incognita in Greenhouse Condition

Background: Root-knot nematodes (Meloidogyne spp.) are the most devastating pests of vegetables, especially in tropic and subtropic regions. Meloidogyne incognita is among major pathogens found tomato crop causes a significant yield loss. This study evaluates resistance susceptible cultivar against root-knot incognita). Methods: A greenhouse was conducted to evaluate or susceptibility nine cultivars M. incognita. Nine (Jyoti-4, Navuday, P-21, T9, Pusa-Rohini, Pusa-Sheetal, Pusa-Ruby, Tomato-Ped Tomato-Round) were procured from Indian Institute Agriculture Research (IARI), New Delhi Chola seeds store Aligarh, Uttar Pradesh, India. Two weeks old seedlings each transplanted singly into pot 15 cm diameter (1 kg mixture soil). Only one healthy seedling maintained pot, including control. Each inoculated with 1500 freshly hatched second-stage juveniles (J2s) experiment carried out completely randomized design (CRD) five replications cultivar. Result: According rating scale galls reductions growth parameters, Pusa-Ruby highly susceptible. Five cultivars, namely Jyoti-4, P-21 Tomato-Round susceptible, while Pusa-Rohini moderately viz., resistant.