Density and diversity of nematodes in coffee agroforestry systems intercropped with bananas and legumes shadow in Jinotega, Nicaragua

García Salazar Julia Mercedes, Soto Gabriela, Ferris H., Casanoves Fernando, Staver Charles, Avelino Jacques, Castellon J.. 2013. Density and diversity of nematodes in coffee agroforestry systems intercropped with bananas and legumes shadow in Jinotega, Nicaragua. In : Proceedings of the 24th International Conference on Coffee Science, San José, Costa Rica, 12th-16th November 2012 = Actes du 24ème Colloque scientifique international sur le café, San José, Costa Rica, 12-16 novembre 2012. ASIC. Paris : ASIC, 1242-1246. ISBN 978-2-900212-23-3 International Conference on Coffee Science. 24, San José, Costa Rica, 12 Novembre 2012/16 Novembre 2012.

Résumé : Phytonematodes and soil nematodes population was studied in the presence of bananas, coffee and coffee trees in Jinotega, Nicaragua. The most densely populated phytonematode in the roots of banana and coffee was Meloidogyne J2, with higher concentration in the roots of coffee (3.429 individuals / 100 gr of coffee root). The genus Pratylenchus increased in coffee under CBL condition (1.186 individuals / 100 gr of coffee root), while decreases in bananas. Trophic groups identified in soil showed no difference between treatments. The largest number of bacteriophages in the treatment appeared CBL, bactephagos of cp2 group showed a higher number of individuals in C, the higher presence of micófagos was found in CB, predators were more numerous in CL and omnivores in C. Indices were calculated about soil web food where the ratio between predator and prey footprint showed statistical difference between treatment CB and treatments CBL, CL and C.

Classification Agris : H10 - Ravageurs des plantes
F08 - Systèmes et modes de culture
K10 - Production forestière

Auteurs et affiliations

• García Salazar Julia Mercedes, CATIE (CRI)
• Soto Gabriela, CATIE (CRI)
• Ferris H., UC (USA)
• Casanoves Fernando, CATIE (CRI)
• Staver Charles, Bioversity International (CRI)
• Avelino Jacques, CIRAD-BIOS-UPR Bioagresseurs (CRI) ORCID: 0000-0003-1983-9431
• Castellon J., Universidad Nacional Autonoma de Nicaragua (NIC)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/570154/)

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