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vol.24 número3DENSIDAD LÍMITE PARA EL CONTROL DE POLYPHAGOTARSONEMUS LATUS (BANKS) (ACARI: TARSONEMIDAE) SOBRE PIMIENTO (Capsicum annuum l.) EN CULTIVO PROTEGIDO índice de autoresíndice de materiabúsqueda de artículos
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Revista de Protección Vegetal

versión On-line ISSN 2224-4697


RODRIGUEZ, Mayra G et al. BEHAVIOUR OF GENOTYPES FROM SOLANACEA FAMILY IN FRONT TO Meloidogyne incognita (KOFOID Y WHITE) CHITWOOD1. Rev. Protección Veg. [online]. 2009, vol.24, n.3, pp. 137-145. ISSN 2224-4697.

The root knot nematodes (Meloidogyne spp.) are limiting factors for yields of vegetables in open areas and crops under shelter conditions, where tomato Solanum lycopersicon L. (ex Lycopersicon esculentum Mill.) represents a very good host for these nematodes. For population management of this pest, resistance and graffing are used, among other tactics, to obtain good productive results, but it is necessary to evaluated the resistance of genotypes to native populations, since as it is know resistancemay be broken by factors like virulence of Meloidogyne population. The objective of this study was to determine the behaviour of tomato lines hybrids and varieties to native population of M. incognita race 2, as a basic element for the graffting program being develop in Cuba as an alternative to methyl bromide. Ten plants per genotype were inoculated with 1,5 eggs/juvenils.g of soil-1 and evaluated after 60 days to determined the Root Galling Index (IA), the Reproduction Factor (FR) and the Reproduction Index (IR). The cultivars evaluated were Lycopersicon peruvianum acc. B6-140; Physalis ixocarpa acc. B6236; Lycopersicon pimpinellifolium acc. Mex 121-A; the following varieties/hybrids of Solanum lycopersicum var. ceraciforme, Vyta, Mariela, Amalia, HC 3880 and HA 3019; the interespecific hybrid Lycopersicon hirsutum x L. esculentum, Solanum torvum and the tomato hybrids T-1x14, T-1x15, T-2x16 and LTM. The interespecific hybrid L. hirsutum x L. esculentum was immune, whereas S. torvum and L. peruvianum were very resistant. In other hand, P. ixocarpa behaved as moderately resistant and the rest of genotypes were susceptibles to the Cuban population of M. incognita race 2.

Palabras clave : Meloidogyne incognita; resistance; susceptibility; Solanaceae; grafting.

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