Susceptibility of crop plants to the root-knot nematode Meloidogyne luci, a threat to agricultural productivity

The root-knot nematode (RKN) Meloidogyne luci is included in the Alert List of European Plant Protection Organization, because it has potential negative impacts on economically important crops. Identification plant species/cultivars resistant to M. for its management. Susceptibility 35 commercial species/cultivars, from nine families a isolate Portugal was evaluated pot assays, assessing root gall index (GI) and reproduction factor (Rf) 60 d after inoculation, with tomato ‘Coração-de-Boi’ used as positive susceptible experimental control. Presence/absence RKN resistance genes also determined pepper cultivars. One cultivar cabbage, three lettuce, ten pepper, one sugar beet, all cultivars Cucurbitaceae (five), Fabaceae (two) Poaceae (one) were (GI = 4-5; Rf 2.1-152.3). each carrot, passion fruit, lettuce ‘Cocktail’, cabbage ‘Bacalan’, ‘Coração’ ‘Lombarda’, spinach ‘Tayto’ resistant/hypersensitive (Rf < 1; GI > 2). ‘Actimino’, ‘Briomino’, ‘Veinal’ ‘Vimeiro’, which carried at least copy Mi-1.2 gene, 1-2; 0.0 0.1). These results indicate that have contribute reduction populations agro-ecosystems improve crop yields.