Respuesta de Seis Lineas Experimentales de Coffea Spp. a la Inoculacion con Meloidogyne exigua

Abstract

The reaction of six experimental lines of Coffea spp. to the inoculation with M. exigua was evaluated under greenhouse conditions. The inoculum consisted of 15,000 eggs and/or J per plant. Evaluated lines included 'Catuai T 5267', 'Villa Sarchi T 3035' and 'Anfillo T 3824' of C. arabica; 'Robusta T 3759' of C. canephora and the hybrids between these two species 'Sarchimor T 5296' and 'Catimor T 8663' No significant differences between inoculated and non-inoculated plants were found in plant height, dry top weight, fresh root weight and foliar area 80 days after inoculation. Comparing the number of galls/plant, number of eggs/plant, gall diameter, total number of nematodes, number of females and number of juveniles/gall on 'Catuai', a well known susceptible cultivar, with those obtained in the others, the following classification was established: 'Catuai', 'Villa Sarchi', and 'Catimor' as susceptible; 'Anfillo' as moderately resistant; and 'Robusta' and 'Sarchimor' as resistant to M.