RESISTANCE OF TOMATO VARIETIES AND HYBRIDS TO VERTICILLIUM DAHLIAE AND FUSARIUM OXYSPORUM F. SP. LYCOPERSICI

Authors:	M. Mijatović, M. Ivanović, J. Zdravković, Z. Marković, B. Zečević
Keywords:	tomato, varieties, hybrids, resistance, Verticillium dahliae, 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 F₁, MarkoF₁, Nada F₁, Zlatni jubilej F₁, Balkan F₁) 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 F. oxysporum f. sp. lycopersici, race 1 and 2. Lines P-2/02, S-31 and hybrid Marko F₁ showed high resistance to V. dahliae. Hybrids Luna F₁ and Nada F₁ as well as lines P-3/02 and D-150 were partially resistant, while hybrids Zlatni jubilej F₁ and Balkan F₁ were susceptible. All tested tomato genotypes were more or less susceptible to both isolates of F. oxysporum f. sp. lycopersici.
Full Text (PDF format, 324280 bytes) Citation Download Adobe Acrobat Reader (free software to read PDF files)