Journal
EUROPEAN JOURNAL OF PLANT PATHOLOGY
Volume 124, Issue 2, Pages 337-343Publisher
SPRINGER
DOI: 10.1007/s10658-008-9413-z
Keywords
Genetic variability; Resistance; Root-knot nematodes; SCAR-PCR; Solanum habrochaites; Solanum lycopersicum
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Funding
- Fundacion Ramon Areces
- Instituto Nacional de Investigaciones Agrarias of Spain
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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 x Solanum sp.) and Brigeor (S. lycopersicum x 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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