Abstract
The response of four Mi-resistance gene tomato rootstocks to seven populations of Meloidogyne was determined in pot tests conducted in a glasshouse. Rootstocks PG76 (Solanum lycopersicum × Solanum sp.) and Brigeor (S. lycopersicum × S. habrochaites) and resistant cv. Monika (S. lycopersicum) were assessed against one population of M. arenaria, three of M. incognita, and three of M. javanica. Rootstocks Beaufort and Maxifort were assessed against one population of M. arenaria, two of M. incognita and two of M. javanica. Rootstock PG76 was highly resistant (reproduction index <10%) to all the populations, whereas rootstock Brigeor and cv. Monika were highly to moderate resistant. Rootstocks Beaufort and Maxifort showed reduced resistance or inability to suppress nematode reproduction, and their responses varied according to the population tested. Beaufort and Maxifort were susceptible to the two populations of M. javanica as Maxifort was to one of M. incognita. The reproduction index of the nematode was higher (P < 0.05) on Maxifort than Beaufort for all root-knot nematode populations.
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Acknowledgements
The authors would like to acknowledge Fundación Ramón Areces for financial support. The first author received a pre-doctoral grant from Instituto Nacional de Investigaciones Agrarias of Spain to carry out this research. Thanks are given to O. Simon, O. Jurado and V. Barnés for the technical assistance and P. Manzano for help with the graphics.
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Cortada, L., Sorribas, F.J., Ornat, C. et al. Response of tomato rootstocks carrying the Mi-resistance gene to populations of Meloidogyne arenaria, M. incognita and M. javanica . Eur J Plant Pathol 124, 337–343 (2009). https://doi.org/10.1007/s10658-008-9413-z
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DOI: https://doi.org/10.1007/s10658-008-9413-z