Screening of tomato (Solanum lycopersicum L.) hybrids for bacterial wilt resistance in pot culture

Abstract

The project entitled “Screening of tomato (Solanum lycopersicum L.) Hybrids for yield and bacterial wilt resistance in pot culture” was carried out at the department of Olericulture, College of Agriculture, Vellayani, during 2016-2017. 10 hybrids were evaluated by completely randomized design. Screening in bacterial sick soil under field condition does not provide satisfactory results. An efficient artificial inoculation screening gives better results with respect to bacterial wilt resistance. Method followed for the artificial inoculation was, soil drenching along with root injury that increased the intensity of wilt compared to uninjured root. The studies revealed significant difference among treatments for percent disease incidence at a bacterial concentration of 105 cfu ml-1 as inoculum. It was lowest in LE 16 × Vellayani Vijai and resistant check (26.67%) whereas incidence was 100 per cent in the susceptible check. LE 20 × Manulekshmi. For bacterial wilt resistance, LE 16 × Vellayani Vijai was the best based inoculated trial.