Reaction of different tomato cultivars toward race 1 of Fusarium oxysporum f. sp. lycopersici

Abstract

The aim of this study was to examine the reaction of different tomato cultivars towards race 1 of Fusarium oxysporum f. sp. lycopersici. The researched tomato cultivars were: Adonis, Gružanski zlatni, Jasmin crveni, Narvik SPF and SP109, breeding lines Hom-3, Hom-4, L-4, S-49, S-31, S- 35, SPA, SPR,V-100, 34/56, 93/10 and 93/16. Reaction to pathogen were tested in F1 generation, as well, in combination of 93/16 x V-100, S-35 x L- 4, S-49 x SPA, 34/56 x SPR, S-49 x Hom-4, 93/16 x Hom-3 and 93/10 x S- 31. Plants were inoculated by submerging wounded roots in to pathogen suspension. Disease was assessed 30 days after inoculation. After evaluation 15 cultivars expressed resistance toward this pathogen. Among them 93/10 x S-31, Hom-3 and 93/10 had average disease rating 1,0. Other genotypes had average disease ratings as follows: Narvik SPF and S-49 (1,1), 34/56, Hom-4 and S-49 x Hom-4 (1,2), while Adonis, 93/16 x Hom-3, 34/56 x SPR and 93/16 x V-100 had average disease rating 1,3. Cultivars SPR and 93/16 had 1,7 ADR, meanwhile Sp-109 had 1,8 average rating. Genotypes SPA (2,1), S-49 x SPA (2,1), V-100 (2,2) and L-4 (2,6) belong to the group of tolerant genotypes who did not expressed typical symptoms of chlorosis and wilt of plant but expressed some level of necrosis of xylem in lower part of plants. Most sensitive to fusarium wilt were S-35 x L-4 (3,3), S-35 (3,5), S-31 (3,6), Gružanski zlatni (3,8) and Jasmin Crveni with average disease rating of 4,0.

Cilj ovog rada je da se ispita reakcija različitih kultivara paradajza u odnosu na rasu 1 Fusarium oxysporum f. sp. lycopersici. Ispitivani genotipovi paradajza su sorte: Adonis, Gružanski zlatni, Jasmin crveni, Narvik SPF i Sp-109, selekcione linije Hom-3, Hom-4, L-4, S-49, S-31, S-35, SPA, SPR, V-100, 34/56, 93/10 i 93/16. Takođe, ispitana je i reakcija F1 generacije sledećih kombinacija 93/16 x V-100, S- 35 x L-4, S-49 x SPA, 34/56 x SPR, S-49 x Hom-4, 93/16 x Hom-3 i 93/10 x S-31. Biljke su inokulisane potapanjem povređenog korena u suspenziju patogena. Intenzitet oboljenja je ocenjivan nakon 30 dana posle inokulacije. Nakon evaluacije 15 genotipova je pokazalo rezistentnu reakciju prema ovom patogenu. Medu njima 93/10 x S-31, Hom-3 i 93/10 imali su prosečnu vrednost oboljenja (ADR) 1,0. Ostali genotipovi su bili sledećih ADR vrednosti: Narvik SPF i S-49 (1,1), 34/56, Hom-4 i S-49 x Hom-4 (1,2), dok su Adonis, 93/16 x Hom-3, 34/56 x SPR i 93/16 x V-100 imali ADR vrednost 1,3. Genotipovi SPR i 93/16 imali su 1,7 ADR, dok je Sp-109 imao 1,8 prosečnu vrednost. Genotipovi SPA (2,1), S-49 x SPA (2,1), V-100 (2,2) i L-4 (2,6) svrstani su u grupu tolerantnih genotipova koji nisu imali tipične simptome hloroze i uvenuća ali se kod njih razvio određeni nivo nekroze ksilema lokalizovane na donji deo stabla. Kao najosetljiviji prema ovom patogenu pokazali su se S-35 x L- 4 (3,3), S-35 (3,5), S-31 (3,6), Gružanski zlatni (3,8) i Jasmin Crveni sa prosečnom vrednošću oboljenja 4,0.