Resistance of tomato varieties and hybrids to Verticillium dahliae and Fusarium oxysporum f. sp lycopersici

Abstract

Wilts of tomato caused by Verticillium dahliae and Fusarium oxysporum f. sp. lycopersici are devastating diseases in major tomato-growing regions in Serbia. One of the best solutions for reducing losses is to grow resistant varieties. Five commercial tomato hybrids (Luna F-1, MarkoF(1), Nada F-1, Zlatni jubilej F-1, Balkan F-1) and four lines (S-31, D-150, P-2/02, P-3/02) were assessed for resistance to these pathogens. Plants tested for resistance to V dahliae were root-dip inoculated at the stage of two-four leaves. Testing the resistance of tomato plants at the two true leaf stages uses two isolates of E oxysporum L sp. lycopersici, race 1 and 2. Lines P-2/02, S-31 and hybrid Marko F-1 showed high resistance to V. dahliae. Hybrids Luna F-1 and Nada F-1 as well as lines P-3/02 and D-150 were partially resistant, while hybrids Zlatni jubilej F-1 and Balkan F-1 were susceptible. All tested tomato genotypes were more or less susceptible to both isolates of F. oxysporum f. sp. lycopersici.