Resistance of determinant tomato varieties to the causal agents of bacterial wilt disease

Abstract

Resistance of determinant tomato varieties to pathogens causing bacterial wilt disease – Clavibacter michiganensis subsp. michiganensis (Cmm) and Ralstonia solanacearum (Rs) – was tested under greenhouse conditions. In tests to Cmm resistance, two inoculation methods were compared (inoculation “to the cut off top” of a plant and inoculation by three punctures into a stalk). The inoculation method “into a stalk” appeared to be most suitable. In both cases of inoculation, the highest level of resistance was found in Minigold variety. The rather high level of resistance was also found in varieties Aneta and Orange. In tests to Rs resistance, the most resistant varieties were Minigold, Aneta and Orange, which are recommended for direct consumption.