International Journal of Agricultural Policy and Research

Original Research Article

Influence of tapping time on rubber yield and the physiological status of rubber trees southeastern Côte d’Ivoire in a context of climate change

SOUMAHIN Eric Francis1*, EZO Kiriwa Marie Chantal1, N’DRI Akissi Ange Edwige2, KOUADIO Yatty Justin1, and OBOUAYEBA Samuel3


1UFR Agroforesterie, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d’Ivoire
2Direction des Opérations Agricoles, Société Africaine des Plantations d’Hévéa (SAPH), 01 BP 1322 Abidjan 01, Côte d’Ivoire
3Programme Hévéa, Station de Recherche de Bimbresso, Centre National de Recherche Agronomique (CNRA), 01 BP 1536 Abidjan 01, Côte d’Ivoire

*Corresponding Author Email: soumahin(at)yahoo.fr

Tel: +2250707829770

SOUMAHIN Eric Francis

EZO Kiriwa Marie Chantal

N’DRI Akissi Ange Edwige

KOUADIO Yatty Justin

OBOUAYEBA Samuel


Article Number: IJAPR.22.015  |   Pages: 134-146  |   Vol. 10 (5), September 2022   |   DOI: https://doi.org/10.15739/IJAPR.22.015

 Received: July 25, 2022  Accepted: September 12, 2022  Published: September 26, 2022

Abstract

Rubber tree cultivation, the main source of natural rubber, is suffering the adverse effects of climate change characterized by a scarcity of rain, an increase in temperature and a drop in relative humidity, leading to a reduction in yields. For the purpose of solving this problem, a study was conducted in southeastern Côte d’Ivoire, in order to assess the influence of earlier tapping on rubber yield and the physiological status of rubber trees. Four rubber tree clones were subjected to two treatments (normal tapping starting at 6:00 a.m. and earlier morning tapping starting at 4:30 a.m.) in a completely randomized Fisher blocks design with 4 repetitions over a total surface area of 178 ha. The results showed that latex flow duration is greater with the tapping starting at 4:30 a.m. The gains in rubber yield caused by the tapping starting at 4:30 a.m. are 20%. Moreover, the tapping starting at 4:30 a.m. has no negative effect on the physiological status of the rubber trees. The tapping starting at 4.30 a.m. therefore appears as an alternative to reduce one of the harmful effects of climate change, namely the drop in relative humidity leading to a decrease in rubber yield.

Keywords:

Climate change, rubber tree, tapping time, yield, physiological status.

How to Cite this Article

Soumahin EF, Ezo KMC, N’dri AAE, Kouadio YJ, Obouayeba S (2022). Influence of tapping time on rubber yield and the physiological status of rubber trees southeastern Côte d’Ivoire in a context of climate change. Int. J. Agric. Pol. Res.10(5):134-146.

Author(s) retain the copyright of this article. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.


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