Effect of Tapping on Gum and Incense Yield of Selected Trees Species in Elwaye and Dhas Districts, Borana Zone, Southern Oromia
Ethiopia is one of the Gum and Resin producing countries with a large potential. Borana pastoralists particularly utilised these resources as a source of revenue. The majority of Ethiopia’s gum-resin products are collected from natural oozing. In southern Ethiopia, improved tapping mechanisms are uncommon. This study was conducted to determine the effect of different tapping machines and tapping at different tree diameter classes on the gum and incense yields of selected tree species. Commiphora corrugata, Boswellia microphylla, and Boswellia neglecta tree species were selected for their potential existence and economic importance. A factorial experiment was arranged in a randomised complete block design (RCBD) in which three types of tapping materials including natural oozing and three levels of tree size (diameter classes) were used. Accordingly, materials (Panga, Axe, Sonki, and control) were applied at diameters of (5-8 cm, 8.1-11 cm and >11 cm) for a tree height below DBH (at < 130 cm) and above DBH (at >130 cm) on selected tree species while natural oozing was remained untapped and used as controls. Accordingly, the highest mean yield was recorded for trees tapped by axe (5.99 g/tree), followed by Sonki (5.01 g/tree) and bigger diameter class >11 cm (7.10 g/tree) for Commiphora corrugata. The highest mean yield was also obtained for trees tapped by axe (10.76 g/tree) in the first year and (43.71 g/tree) in the second year and bigger diameter class >11 cm (15.16 g/tree) in the first year and (47.81 g/tree) in the second year for Boswellia microphylla. Moreover, the highest mean yield was recorded for naturally oozing trees (6.16 g/tree) and bigger diameter class >11 cm (6.33 g/tree) for Boswellia neglecta. Tapped trees generally provided significantly higher yields than untapped or control trees, and frankincense yield increased with increasing tree size
Abbas, H., Kamal, E. & Idris, M. (2009). Effect of position of tapping, tree stems diameter and tapping tools on frankincense yield of Boswellia papyrifera in South Kordofan state, Sudan. Forests, Trees and Livelihoods, 19(1), 19-26.
Abdulla, M. (2013). Contribution of Non-timber Forest Products to Household Food Security: The Case of Yaballo Woreda, Borana Zone, Ethiopia. Food Science and Quality Management, 20, 1–13.
Abeje, E. Demel, T. & Hakan H. (2005). The socioeconomic importance and status of populations of Boswellia Papyrifera (Del.) Hochst. in Northern Ethiopia: the case of North Gonder Zone. Forests, Trees and Livelihoods, 15(1), 55–74.
Adefires, W. Demel, T., Mulugeta, L. & Masresha F. (2012). Diversity, regeneration status, and population structures of gum and resin producing woody species in Borana, Southern Ethiopia. Forests, Trees and Livelihoods, 21(2), 85–96.
Adefires, W. & Abdile, M. (2008). Assessment of the resources base and socioeconomic importance of gum resources of selected zones in Somali Regional State.
Adefires, W., Mulugeta, L., Masresha, F.& Demel T. (2011). Socioeconomic importance of rum and resin resources in the dry woodlands of Borana, Southern Ethiopia. Forests, Trees and Livelihoods, 20, 137–55.
Ballal, M., Siddig, A., Fadl, E. & Luukkanen M. (2005). Gum arabic yield in differentially managed Acacia senegal stands in western Sudan. Agro-forestry Forum, 63, 237-245.
Chikamai N. (2003). Review and synthesis on the state of knowledge of Boswellia species and commercialisation of frankincense in the drylands of Eastern Africa.
Coppock L. (1994). The Borana pleatue of southern Ethiopia: Synthesis of pastoral research, development and change, 1980-91. ILCA (International Livestock Centre for Africa), Addis Ababa, Ethiopia. P. 393.
[DDPDO] Dhas District pastoral and development office (2019). Physical and socioeconomic profile of Dhas District: annual report. Borbor, Ethiopia.
Elias, C., Abrham, A., Ambachew, G., Kibruyesfa, S. & Tatek D. (2020). Tapping height and season affect frankincense yield and wound recovery of Boswellia papyrifera trees, Journal of Arid Environments, 179, 104-176.
Eshete, A., Teketay, D., Lemenih, M., & Bongers, F. (2012). Effects of resin tapping and tree size on the purity, germination and storage behavior of Boswellia papyrifera (Del.) Hochst. seeds from Metema District, northwestern Ethiopia. Forest Ecology and Management, 269, 31-36.
Eshetu A. 2002. Regeneration status, soil seed banks and socio-economic importance of Boswellia papyrifera in two woredas of northern Gondar zone, Ethiopia. [Master’s thesis]. Sweden: Swedish university of agricultural sciences.
Fadl KE, Gebauer J. 2004. Effect of different tapping tools and different tapping positions on ‘talh gum’ yield of Acacia seyal var. seyal in South Kordofan, Sudan. Conference on international agricultural Research for Development; October 5-7; Berlin. Deutscher Tropentag.
Gelagay, A., Teshale, S., Amsalu, W. & Esayas, G. (2007). Prevalence of contagious caprine pleuropneumonia in the Borana pastoral areas of Ethiopia. Small Rumin. Res., 70 (2), 131–135.
Girmay, F. & Mulugeta L. 2010. Production, handling and quality control. In: Lemenihn M, Kassa H, editor. Opportunities and challenges for sustainable production and marketing of gums and resins in Ethiopia. Indonesia. CIFOR: Bogor. P. 47-67.
Girmay F. (2000). The Status of gum arabic and resins in Ethiopia. In: Chikamai BN, editor. NGARA 2000. Proceedings of the Network for Natural Gums and Resins in Africa (NGARA) p 29–31. Nairobi, Kenya.
Gizaw AW. (2006). Population status and socioeconomic importance of gum and resin bearing species in Borana Lowlands, southern Ethiopia. Master’s thesis, Addis Ababa, Ethiopia: Addis Ababa University.
Haile, A., Ayalew, W., Kebede, N., Dessie, T. & Tegegne A. (2011). Breeding strategy to improve Ethiopian Borana cattle for meat and milk production. IPMS (Improving Productivity and Market Success) of Ethiopian Farmers Project Working Paper 26, ILRI. Nairobi, Kenya.
Jiregna, G., Lisanework, N. & Heluf G. (2007). Potential, distribution, ethno-botany and tapping procedures of gum producing Acacia species in the Somali Region, Southeastern Ethiopia. East African Journal of Sciences, 11, 69–78.
Kamara, A., Kirk, M. & Swallow B. (2005). Property rights and land use change: implications for sustainable resource management in Borana, Southern Ethiopia. Journal Sustain. Agric., 25, 41–61.
McCarthy, N., Kamara A. & Kirk M. (2002). The effect of environmental variability on livestock and land use management: the Borana plateau, Southern Ethiopia. Socioeconomics and Policy Research Working Paper 35, P. 35, Nairobi Kenya: ILRI and Washington DC: IFPRI.
Mohammed, M.& Rohle, H., (2009). Effect of tree density and tapping techniques on Productivity of gum talha from Acacia seyal var. seyal in South Kordofan, Sudan. Conference on International Research on Food Security, Natural Resource Management and Rural Development; October 6-8; Tharandt, Germany: University of Hamburg.
Mulugeta, L. (2005). Production and marketing of gums and gum resins in Ethiopia. In: Chikamai B. & Casadei E. (Eds), Production and marketing of gum resins: frankincense, myrrh, and opoponax. Network for natural gums and resins in Africa (Publication Series 5, pp. 55–70). Nairobi, Kenya.
Mulugeta, L., Tarekegn A., & Mats O. (2003). Gum and resin resources from some Acacia, Boswellia, and Commiphora species and their economic contributions in Liban, South-East Ethiopia. Journal of Arid Environments, 55(3), 465–82.
Mulugeta, L. & Habtemariam K. (2011). Opportunities and Challenges for Sustainable Production and Marketing of Gums and Resins in Ethiopia. CIFOR, Bogor, Indonesia.
POWER Data Access Viewer v2.0.0. (2022). The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) Prediction of Worldwide Energy Resource (POWER) Project funded through the NASA Earth Science/Applied Science Program. https://power.larc.nasa.gov/data-access-viewer/
Peter, M. (2006). Unkind cuts for incense. Nature, 444, 829
Semegnew, T., Mulugeta L., Brehane M., Galgalo, D. & Prema K. (2016). Effect of tapping intensity and tree diameter on gum arabic yield of Acacia senegal (L) Wild in Southern Ethiopia. World Journal of Pharmaceutical and Life Sciences, 2(2), 229-238.
Tadesse, W., Desalegn, G. & Alia R. (2007). Natural gum and resin-bearing species of Ethiopia and their potential applications. Forest Systems, 16(3),211-221.
Tadesse, W., Feleke, S. & Eshete, T. (2004). Comparative study of traditional and new tapping method on frankincense yield of Boswellia papyrifera. Ethiopian Journal of Natural Resources, 6, 287-299.
Teshome, D., Sori, T., Sacchini, F. & Wieland, B. (2019). Epidemiological investigations of contagious caprine pleuropneumonia in selected districts of Borana zone, Southern Oromia, Ethiopia. Tropical Anim. Health Prod., 51 (3),703–711.
WBISPP (Woody Biomass Inventory and Strategic Planning Project). (2005). Forest resources of Ethiopia. Ministry of agriculture and rural development. Addis Ababa.
Wekesa, C., Makenzi, P., Chikamai, N., Lelon, K., Luvanda, M. & Muga M. (2009). Gum arabic yield in different varieties of Acacia senegal (L.) Willd in Kenya. African Journal of Plant Science, 3(11), 263-276.
Yasin, M. & Salah, S. (2014). The role of indigenous gums and resins in pastoralists livelihood security and climate change adaptation in Garba tula area of Northern Kenya. Agricultures Consortium as Part of the Early Career Fellowship Programmed, Brighton, UK. Future.
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