Fitsum Greener Journal of Agricultural Sciences Vol. 8 (9), pp. 179-196, 2018. ISSN: 2276-7770 Research Article Manuscript Number: 082218121 (DOI: http://doi.org/10.15580/GJAS.2018.9.082218121) Impact of Improved Wheat Varieties Adoption on Productivity: Disparity among Agroecological Zones of Ethiopia FITSUM Daniel Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia. Abstract This study examines the agroecologic zonal disparity in the impact of adoption of improved wheat varieties on productivity using 1,611 sample farm households in four major administrative regions of Ethiopia. Propensity score matching (PSM) technique was employed since it is an increasingly utilized standard approach for evaluating impacts using observational data. It is found that adoption of improved wheat varieties doesn’t have homogeneous positive and significant impact on productivity growth in all of the agroecologic zones considered. Thus, the study recommends that the agricultural research and extension system of the country should further consider the various differences that exist among different agroecologic zones and other areas of the country so as to generate and disseminate suitable improved agricultural technologies and information to each areas. Keywords: Impact, Wheat, Improved Varieties, Ethiopia. Return to Content View [Full Article – PDF] [Full Article – HTML] [Full Article – EPUB] Post-review Rundown View/get involved, click [Post-Review Page] References Abate T. , Shiferaw B., Menkir A. , Wegary D. , Kebede Y., Tesfaye K., Kassie M., Bogale G., Tadesse B. and Keno T. (2015). Factors That Transformed Maize Productivity in Ethiopia. Food Sec. (2015) 7:965–981. Abegaz G. (2011). Cereal Productivity in Ethiopia: An Analysis Based on ERHS Data. Ethiopian Journal of Economics, Volume XX No. 2, October 2011. Admassie A. and Ayele G, (2004). Adoption of Improved Technology in Ethiopia. Ethiopian Development Research Institute (EDRI), Research Report 3. Asfaw S., Shiferaw B. and Simtowe F. (2010). Does Technology Adoption Promote Commercialization? Evidence from Chickpea Technologies in Ethiopia. Ayele G., Bekele M. and Zekeria S. (2006). Productivity and Efficiency of Agricultural Extension Package in Ethiopia. Ethiopian Development Research Institute (EDRI), Research Report 5. Bor O. and Bayaner A. (2009). How Responsive is the Crop Yield to producer prices? A panel data approach for the case of Turkey. NEW MEDIT N. 4/2009. Cochran, W. G. and D. B. Rubin. (1973). ‘Controlling Bias in Observational Studies: A Review,’ Sankhya, ser. A, 35:4, 417–446. CSA. 2015. Major results of the 2007 GDP estimates. Central Statistical Agency (CSA), Addis Ababa, Ethiopia. D. Zeng, Alwang J., Norton G.W., Shiferaw B., Jaleta M. and Yirga C. (2015). Ex post Impacts of Improved Maize Varieties on Poverty in Rural Ethiopia. Agricultural Economics 46 (2015) 1–12. Elias A.,Nohmi M., Yasunobu K. & Ishida A. (2013). Effect of Agricultural Extension Program on Smallholders’ Farm Productivity: Evidence from Three Peasant Associations in the Highlands of Ethiopia. Journal of Agricultural Science, Vol. 5, No. 8, 2013. Endale K. (2011). Fertilizer Consumption and Agricultural Productivity in Ethiopia. Ethiopian Development Research Institute (EDRI), Working Paper 003. Endalkachew T. (2011). Impact of Soil and Water Conservation on Crop Productivity in the Highlands of Ethiopia. A Thesis Submitted to the School of Graduate Studies of Addis Ababa University in Partial Fulfillment of the Requirements for the Degree of Masters of Science in Economics, November, 2011. GebreEyesus A. (2015). A Study on Human Resource Management, Staff Turnover and Incentives in the National Agricultural Research System (NARS). Ethiopian Development Research Institute (EDRI), Research Report 27. Gebre-Selassie A. and Bekele T. A Review of Ethiopian Agriculture: Roles, Policy and Small-scale Farming Systems. Global Growing Casebook. Gebru A. (2006). The Determinants of Modern Agricultural Inputs Adoption and Their Productivity in Ethiopia (The Case of Amhara and Tigray Regions). A Thesis Submitted to the School of Graduate Studies of Addis Ababa University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Economics (Economic Policy Analysis), July, 2006. González V,, Ibarrarán P., Maffioli A. and Rozo S. (2009). The Impact of Technology Adoption on Agricultural Productivity: The Case of the Dominican Republic. Inter-American Development Bank. Office of Evaluation and OversightWorking Paper: OVE/WP-05/09. September, 2009. Hailu B.K., Abrha B.K. and Weldegiorgis K.A. (2014). Adoption and Impact of Agricultural Technologies on Farm Income: Evidence from Southern Tigray, Northern Ethiopia. International Journal of Food and Agricultural Economics Vol. 2 No. 4, (2014), pp. 91-106. Heckman, J., H. Ichimura, and P. Todd. (1998). Matching as an Econometric Evaluation Estimator. The Review of Economic Studies 65(2): 261-294. Kelemu K. (2017). Determinants of Farmers Access to Information about Improved Wheat Varieties: Case of Farmers in Major Wheat Growing Regions of Ethiopia. International Journal of Research in Agricultural Sciences, Volume 4, Issue 1, ISSN (Online): 2348 – 3997. Ketema M., and Kassa B. (2016). Impact of Technology on Smallholder Wheat Production in Bale Highlands of Ethiopia: Application of Output Decomposition Model. Turkish Journal of Agriculture- Food Science and Technology, 4(6): 446-454. Mann M. and Warner J. (2017). Ethiopian Wheat Yield and Yield Gap Estimation: A Spatially Explicit Small Area Integrated Data Approach. Field Crops Research 201 (2017) 60–74. Matsumoto T. and Yamano T. (2010). The Impacts of Fertilizer Credit on Crop Production and Income in Ethiopia. National Graduate Institute for Policy Studies (GRIPS) Policy Research Center Discussion Paper 10-23, GRIPS, Tokyo. MoFED. (2003). Rural Development Policy and Strategies. Economic Policy and Planning, Ministry of Finance and Economic Development, Addis Ababa. Mulugeta T. and Hundie B. (2012). Impacts of Adoption of Improved Wheat Technologies on Households’ Food Consumption in Southeastern Ethiopia. Selected Poster prepared for presentation at the International Association of Agricultural Economists (IAAE) Triennial Conference, Foz do Iguaçu, Brazil, 18-24 August, 2012. Nigussie A., Kedir A., Adisu A., Belay G., Gebrie D. and Desalegn K. (2015). Bread Wheat Production in Small Scale Irrigation Users Agro-Pastoral Households in Ethiopia: Case of Afar and Oromia Regional State. Journal of Development and Agricultural Economics, Vol. 7(4), pp. 123-130. Olmos A. (2015). Propensity Scores: A Practical Introduction Using R. Journal of MultiDisciplinary Evaluation, Vol. 11, Issue 25, 2015. Rosenbaum, P. and D. Rubin. (1983). The Central Role of the Propensity Score in Observational Studies for Causal Effects. Biometrika 70:1, 41–55. Rosenbaum, P. and D. Rubin. (1985). Constructing a Control Group Using Multivariate Matched Sampling Methods that Incorporate the Propensity Score. The American Statistician Association, February1985, Vol. 39, No. 1. Rubin, D. B. (1977). Assignment to Treatment Group on the Basis of a Covariate. Journal of Educational Statistics, 2, 1-26. S. Tesfaye, B. Bedada and Y. Mesay. (2016). Impact of Improved Wheat Technology Adoption on Productivity and Income in Ethiopia. African Crop Science Journal, Vol. 24, Issue Supplement s1, pp. 127-135. Taffesse A., Dorosh P. and Asrat S. (2012). Crop Production in Ethiopia: Regional Patterns and Trends. Summary of ESSP II Working Paper 16, “Crop Production in Ethiopia: Regional Patterns and Trends”. ETHIOPIA STRATEGY SUPPORT PROGRAM (ESSP II) Research Note 11. Tsusaka T. and Otsuka K. (2013). The Changes in The Effects of Temperature and Rainfall on Cereal Crop Yields in Sub-Saharan Africa: A Country Level Panel Data Study, 1989 to 2004. Environmental Economics, Volume 4, Issue 2, 2013.