Bertrand Benoît, Ramirez G., Topart Patrick, Anthony François. 2002. Resistance of cultivated coffee (Coffea arabica and C. canephora) trees to corky-root caused by Meloidogyne arabicida and Fusarium oxysporum, under controlled and field conditions. Crop Protection, 21 (1) : pp. 713-719.
Autre titre : Résistance de caféiers (Coffea arabica et C. canephora) cultivés à la maladie liégeuse des racines due à Meloidogyne arabicida et Fusarium oxysporum, en conditions controlées et en champ
Abstract : The coffee disease complex known as corky-root, composed of the root-knot nematode #Meloidogyne arabicida# and #Fusarium oxysporum#, causes serious damage to #Coffea arabica# in Costa Rica. Resistance to #Meloidogyne arabicida# alone and to the field population (#M. arabicida#, #M. exigua#, #F. oxysporum#) was evaluated under controlled and field conditions. The studied material consisted of subspontaneous-derived #C. arabica# accessions, #C. canephora# accessions, introgression lines derived from the interspecific Timor Hybrid (#C. arabica# x #C. canephora#) and F1 hybrids from crosses between subspontaneous-derived accessions and cultivars. Accessions resistant to #M. arabicida# and to the field population were identified at varying frequencies in the different groups of study materials. The results showed that resistance to corky-root is heritable and that genetic resistance to #M. arabicida# is an effective strategy against corky-root disease. By using #C. canephora# rootstocks, it was possible to substantially reduce mortality in the field and reduce by half the number of plants with corky-root symptoms. The results were used to define appropriate strategies for the sustainable management of coffee corky-root disease resistance. (Résumé d'auteur)
Mots-clés Agrovoc : Coffea arabica, Coffea canephora, Meloidogyne, Fusarium oxysporum, Résistance aux maladies, Résistance génétique, Héritabilité, Contrôle de maladies, Lutte génétique, Greffage
Mots-clés géographiques Agrovoc : Costa Rica
Mots-clés complémentaires : Meloidogyne arabicida
Classification Agris : F30 - Plant genetics and breeding
H20 - Plant diseases
Auteurs et affiliations
- Bertrand Benoît, CIRAD-CP-CAFE (CRI)
- Ramirez G., ICAFE (CRI)
- Topart Patrick, CATIE (CRI)
- Anthony François, CATIE (CRI)
Autres liens de la publication
- Document en bibliothèque
- Localisation du document : CD_BR12762 [(Bibliothèque de Lavalette)]
Source : Cirad - Agritrop (https://agritrop.cirad.fr/523335/)
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