Resistance of F1 Hybrids of Lycopersicon Genus to Populations of Meloidogyne Species

1Plant Protection Institute, BG - 2230 Kostinbrod, Bulgaria
2Institute of Genetics BAS, BG - 1113 Sofia, Bulgaria


TRIFONOVA, Z. and Z. VULKOVA, 2007. Resistance of F1 hybrids of Lycopersicon Genus to populations of Meloidogyne species. Bulg. J. Agric. Sci., 13: 535-538

The reaction of F1 hybrids of Lycopersicon spp. to Bulgarian populations of Meloidogyne incognita (Kofoid and White,1919) Chitw.1949 and M. hapla Chitw. were evaluated in a glasshouse at 26+2° C .The plants were planted in plastic trays containing 12cm3 of steam sterilized sandy soil and artificially infested with 10 000 eggs and juveniles of each nematode population per plant. Highly resistant to M.incognita and M.hapla were the hybrids No 9-4 and 9-6.Only few galls were found on the resistant hybrids No 8-42 and 8-48. The plants of number 9-8 were highly resistant to M. incognita and susceptible to M. hapla. The remaining cultivars were susceptible to the nematode populations tested.

Key words: root-knot nematodes, resistance

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