An Analysis of the Supply for Seed Yams in Nigeria

Asumugha, G.N and Njoku, M.E and Okoye, B.C and Aniedu, O.C and Ogbonna, M.C and Anyaegbunam, H.N and Akinpelu, A.O and Ibeagi, O.O (2007): An Analysis of the Supply for Seed Yams in Nigeria. Published in: Academic Journals , Vol. 3, No. 1 (January 2009): pp. 28-31.

Abstract

This study was conducted to examine the supply of seed yam in major yam producing areas of Northern and Southern Nigeria using the supply function analysis. A cost-route approach was adopted in eliciting data from 120 seed yam farmers and marketers spread across the six states studied in 2006 using the multi-stage random sampling technique. Results show that price of seed yam and age had a significant relationship with value of seed yam supplied at the 1.0% level. Disposable income was significant at the 5.0% level, while labour cost and supplier experience were negatively related with value of seed yam supplied at the 10.0% and 1.0% levels respectively. Price of substitute and credit had a negative relationship with value of seed yam. The elasticity of supply of seed yam with respect to income is positive but inelastic while the elasticity of supply with respect to years of experience and labour were negative and elastic. Price of seed yam had positive price elasticity. Result of the field work show that there were no commercial structures for supply of seed yam in Nigeria. Farmer’s only sell seed yams after satisfying own requirements. The results therefore call for policies aimed at ensuring framers entitlement to productive resources and to target farmers in credit and large-scale farm enterprise.

• Item Type: MPRA Paper
• Language: English
• Keywords: Seed Yams in Nigeria, Determinants of Supply and Supply Elasticities
• Subjects: Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q1 - Agriculture; Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q1 - Agriculture > Q11 - Aggregate Supply and Demand Analysis ; Prices; Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q1 - Agriculture > Q10 - General

References

Asumugha GN, BO Ugwu , OC Aniedu, GC Orkwor, K Amegbeto (2007). Minisett technique of seed yam production in two major yam producing states of Nigeria: a function of input availability and production objective. In :N.M. Mahungu and V.M. Manyong (eds.) Advances in Root & Tuber Crops technologies for sustainable food security, improved nutrition, wealth creation & environmental conservation in Africa. Proceedings of the 9th Triennial Symposium of the International Society for Tropical Root Crops – African Branch (ISTRC-AB), Mombasa, Kenya, 1– 5 November, 2004. Pp 209-214.

Central Bank of Nigeria (Statistical Bulletin) Vol. 14, December 2003.

Ezeh NOA (1991). “Economics of Seed yam production from Minisetts at Umudike, South Eastern Nigeria: Implications for Commercial Growers.” Proc. of 9th Int. Symp. of Intern. Soc. for Tropical Root Crops, IITA, Ibadan

FAO (2006): Food and Agricultural Organization (2006) Databases

FAO (2003): Food and Agricultural Organisation. Proceedings of the Mini Round Table Meeting on Agricultural Marketing and Food Security held at Bangkok, Thailand. 1st to 2nd Nov. 2001

Kushwaha S, IM Polycarp (2001), Economics of small scale yam production in Qua’an Pau LGA of Plateau. In: Abubakar M.M., Adegbola, T.A. and Butswat, I.S.R. (Eds), The Role of Agriculture in Poverty Alleviation. Proc. 34th Ann. Conf. of Agric. Soc. of Nigeria, held at Abubakar Tafawa Balewa University (ATBU), Bauchi, Oct., 15– 19, 2001, pp 69 – 74.

Lyonga SN (1980): The Economics of Yam (Dioscorea spp) Cultivation in the Cameroon. Proceedings of the First Triennial Symposium of the International Society for Tropical Root Crops -African Branch. Ibadan, Nigeria: 208 – 213.

Manyong VM, R Asiedu, GO Olaniyan (2001), “Farmers’ perception of and actions on resource management constraints in the yam based systems of western Nigeria” In: M.O. Akoroda and J.M. Ngeve , Root Crops in the 21 Centurty, Proc 7th Trie Symp. ISTRC-AB, Cotonou, Benin Republic, 11-17 October 1998, pp 156-167.

NRCRI (2004); Yam: Science and Technology Briefing, 20 – 22nd February, 16p, National Root Crops Research Institute, Umudike and National Store products Research Institute, Lagos.

Nweke FI, BO Ugwu, CL A Asadu, P Ay (1991). Production costs in the yam-based cropping systems of southeastern Nigeria. RCMP Research Monograph No. 6, 11TA Ibadan, Nigeria.

Okoli OO, MO Akoroda (1995). Providing seed tubers for the production of food yams. Afr. J. Root and Tuber crops Vol. 1 No. 1 pp 1-6.

Orkwor GC, OU Okereke, FOC Ezedinma, HC Ezumah (1992): Critical Period of Weed Interference in Maize Intercropping with yam (Dioscroea rotundata Poir) Okra (Abelmoschus esculentus I. Moench) and sweet potato (Ipomoea batatas L. Lam.). Nigerian J. Agric. 26 (20): 61 – 70.

Ugwu BO (1990), Resource use and Productivity in food crop production in major yam producing areas of southeastern Nigeria. Ph.D. dissertation, University of Nigeria, Nsukka.