Agronomic performance of the clone IRCA 111 of hevea brasiliensis under different frequencies of tapping and stimulation in South-West Côte d'Ivoire

Obouayeba Samuel, Soumahin Eric Francis, Dobo M., Lacote Régis, Gabla O.R., Doumbia Amadou. 2009. Agronomic performance of the clone IRCA 111 of hevea brasiliensis under different frequencies of tapping and stimulation in South-West Côte d'Ivoire. Journal of Rubber Research, 12 (2) : 93-102.

Quartile : Q4, Sujet : POLYMER SCIENCE

Résumé : Clone IRCA 11 1 was developed in Côte d'Ivoire in 1975 to contribute in increasing the rubber production. Nine years of study were conducted on a large scale to identrfy the optimal tapping system for its exploitation before being released to the producers. The experimental design was that of a Randomised Complete Bloc (RCB). Among the six tapping systems tested (% S d/2 6d/7; % S d/3 6d/7. ET 2.5%. Pa 1 (1). 4/y; % S d/4 6d/7. ET 2.5%. Pa 1 (1). 44; % S d/4 6d/7. ET2.5%. Pa 1 (1). 8/y; % S d/5 6d/7. ET 2.5%. Pa 1 (1). 8/y and % S d/6 6d/7. ET2.5%. Pa 1 (1). 10/y) tapping twice per week with 4 annual stimulations (% S d/3 6d/7. ET2.5%. Pa 1 (1). 4/y) turned out to be the optimal exploitation system for IRCA 11 1. Nevertheless, with a Iimited number of tappers, weekly tapping with 10 annual stimulations (% S d/6 6d/7. ET 2.5 %. Pa 1 (1). 10/y) was the most appropriate. The production of rubber per tree andper tapping (g/t//t) was in logarithmic relation with the intensiw of tapping. The rate of tapping panel dvness (TPD) was related to the intensiw of tapping by a quadratic polynomial function. The study also demonstrated that IRCA 111 had a high yield, a fast growth rate and an active metabolism as compared to the standard clone PB 235.

Mots-clés Agrovoc : Hevea brasiliensis, clone, performance de culture, rendement des cultures, latex, récolte, stimulus, métabolisme, expérimentation

Mots-clés géographiques Agrovoc : Côte d'Ivoire

Mots-clés complémentaires : Système de saignée, Stimulation

Classification Agris : F01 - Culture des plantes
F60 - Physiologie et biochimie végétale
F62 - Physiologie végétale - Croissance et développement

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Obouayeba Samuel, CNRA (CIV)
• Soumahin Eric Francis, CNRA (CIV)
• Dobo M., CNRA (CIV)
• Lacote Régis, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA) ORCID: 0000-0002-8184-5763
• Gabla O.R., HEVEGO (CIV)
• Doumbia Amadou, HEVEGO (CIV)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/549905/)

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