Farmers’ Demand for Extra Yield from Improved Tef [(Eragrostis tef (Zucc.) Trotter] Varieties in Ethiopia: Implications for Crop Improvement and Agricultural Extension

Authors
E. Wale 1
J. N. Chianu 2
1 School of Agricultural, Earth and Environmental Sciences, Discipline of Agricultural Economics, University of KwaZulu-Natal, Pietermaritzburg, South Africa.
2 Agriculture and Agro-Industry (OSAN), African Development Bank, B. P. 323–1002 Tunis Belvedere, Tunisia.
Abstract
For maximum impact, high yielding improved varieties with significant yield advantages must be targeted to farmers and localities that value this trait most. Explaining farmers’ demand for yield can serve as a means of targeting the development and dissemination of high yielding varieties. This paper analyzes data collected from 395 farmers in northern Ethiopia using a zero-limit Tobit regression. According to the results, poor and marginalized farmers prefer varieties adaptable to poor weather and soils, early maturing, and those which can address diverse concerns than varieties exceptionally good in a single trait (like yield). The richer farmers demand more yield advantage over the existing ones to convince them to use Improved Varieties. For farmers operating in relatively good farming systems (soils, weather, etc.), investment has to be made not only on crop improvement but also on complementary inputs, improved practices, and market development. Farmers who consider improved varieties more marketable and valuable take up high yielding varieties with relatively marginal yield difference. In areas and farmers where there is lower demand for yield, other variety traits (like early maturity, yield stability, and adaptability to local soils/weather) are also important to consider in future crop improvement activities. To ensure that farmers who demand more yield use IVs more productively, the yield advantage, compared to the existing varieties under use, must be high enough and stable.

Keywords

1. Abebe, G., Bijman, J., Pascucci, S. and Omta, O. 2013. Adoption of Improved Potato Varieties in Ethiopia: The Role of Agricultural Knowledge and Innovation System and Smallholder Farmers’ Quality Assessment. Agricultural Systems, 122: 22-32.
2. Adesina, A. A. and Zinnah, M. M. 1993. Technology Characteristics, Farmers’ Perceptions and Adoption Decisions: A Tobit Model Application in Sierra Leone. Agricultural Economics, 9: 297-311.
3. Almekinders, C. J. M., Louwaars, N. P. and de Bruijn, G. H. 1994. Local Seed Systems and Their Importance for an Improved Seed Supply in Developing Countries. Euphytica, 78: 207-216.
4. Amemiya, T. 1984. Tobit Models: A Survey. Journal of Econometrics, 24: 3-61.
5. Asfaw, A. and Admassie, A. 2004. The Role of Education on the Adoption of Chemical Fertiliser under Different Socioeconomic Environments in Ethiopia. Agricultural Economics, 30: 21 5-228.
6. Assefa, K., Yu, J. K., Zeid, M., Belay, G., Tefera, H. and Sorrells, M. E. 2011a. Breeding Tef [Eragrostis Tef (Zucc.) Trotter]: Conventional and Molecular Approaches. Plant Breed., 130: 1-9.
7. Assefa, K., Aliye, S., Belay, G., Metaferia, G., Tefera, H. and Sorrells, M. E. 2011b. Quncho: The First Popular Tef Variety in Ethiopia. International Journal of Agricultural Sustainability, 9(1): 25-34.
8. Baltagi, B. H. 2002. Econometrics. 3rd Ed. Berlin, Germany: Springer-Verlag.
9. Bellon, M. R. and Risopoulos, J. 2001. Small Scale Farmers Expand the Benefits of Improved Maize Germplasm: A Case Study of Chiapas, Mexico. World Development, 29: 799-811.
10. Brocke, K. V., Trouchea, G., Weltzienb, E., Barro-Kondombo, C. P., Gozéd, E. and Chantereaua, J. 2010. Participatory Variety Development for Sorghum in Burkina Faso: Farmers’ Selection and Farmers’ Criteria. Field Crops Research, 119: 183-194.
11. Cavatassi, R., Lipper, L. and Narloch, U. 2011. Modern Variety Adoption and Risk Management in Drought Prone Areas: Insights from the Sorghum Farmers of Eastern Ethiopia. Agricultural Economics, 42: 279-292.
12. Cleveland, D. A., Soleri, D. and Smith, S. E. 1994. Do Folk Varieties Have a Role in Sustainable Agriculture? Biosci., 44(11): 740 - 751.
13. Croppenstedt, A., Demeke, M. and Meschi, M. 2003. Technology Adoption in the Presence of Constraints: The Case of Fertiliser Demand in Ethiopia. Review of Development Economics, 7(1): 58-70.
14. CSA. 2012. Agricultural Sample Survey 2011/12 (2004 EC): Report on Area and Production for Major Crops. Central Statistical Agency, Addis Ababa, Ethiopia, 1.
15. Dalrymple, D. D. 1985. The Development and Adoption of High Yielding Varieties of Wheat and Rice in Developing Countries. American Journal of Agricultural Economics, 67(5): 1067 – 1073.
16. Dalrymple, D. D. 1979. The Adoption of High-Yielding Grain Varieties in Developing Nations. Agricultural History, 53(4): 704 – 726.
17. Dalton., T. J. 2004. A Household Hedonic Model of Rice Traits: Economic Values from Farmers in West Africa. Agricultural Economics, 31: 149 - 159.
18. David, S., Mukandala, L. and Mafuru, J. 2002. Seed Availability, an Ignored Factor in Crop Varietal Adoption Studies: A Case Study of Beans in Tanzania. Journal of Sustainable Agriculture, 21: 5-20.
19. Dercon, S. and Christiaensen, L. 2011. Consumption Risk, Technology Adoption and Poverty Traps: Evidence from Ethiopia. Journal of Development Economics, 96: 159-173.
20. Douthwaite, B., Keatinge, J. D. H. and Park, J. R. 2001. Why Promising Technologies Fail: The Neglected Role of User Innovation during Adoption. Research Policy, 30: 819-836.
21. Feleke, S. and Zegeye, T. 2006. Adoption of Improved Maize Varieties in Southern Ethiopia: Factors and Strategy Options. Food Policy, 31: 442-457.
22. Fufa, B., Behute, B., Simons, R. and Berhe, T. 2011. Strengthening the Tef Value Chain in Ethiopia. Ethiopian Agricultural Transformation Agency, Addis Ababa, Ethiopia.
23. Haghjou, M., Hayati, B., Pishbahar, E., Mohammadrezaei, R. and Dashti, D. 2013. Factors Affecting Consumers’ Potential Willingness to Pay for Organic Food Products in Iran: Case Study of Tabriz. J. Agri. Sci. Tech., 15: 191-202.
24. Horna, D., Smale, M. and Vonoppen, M. 2007. Farmer Willingness to Pay for Seed-related Information: Rice Varieties in Nigeria and Benin. Environment and Development Economics, 12: 799-825.
25. Idrisa, Y. L., Ogunbameru, N. B. O. and Amaza, P. S. 2010. Influence of Farmers’ Socio-economic and Technological Characteristics on Soybean Seeds Technology Adoption in Southern Borno State, Nigeria. Agro-Sci., 9: 209-214.
26. Ketema, S. 1997. Tef [Eragrostis tef (Zucc.)] Trotter. 12. Promoting the Conservation and Use of Underutilised and Neglected Crops. Institute of Plant Genetics and Crop Plant Research, Gatersleben/IPGRI, Rome, Italy.
27. Kidane, A. and Abler, D. G. 1994. Production Technologies in Ethiopian Agriculture. Agricultural Economics, 10: 179-91.
28. Lal, S. 2010. Guidelines for Selection of Improved Varieties/Hybrids of Rice, Wheat and Pulses for NFSM States. Department of Agriculture and Cooperation, Ministry of Agriculture, Government of India, Krishi Bhawan, New Delhi.
29. Lin, J. Y. 1991. Education and Innovation Adoption in Agriculture: Evidence from Hybrid Rice in China. American Journal of Agricultural Economics, 73(3): 713-723.
30. Lunduka, R., Fisher, M. and Snapp, S. 2012. Could Farmer Interest in a Diversity of Seed Attributes Explain Adoption Plateaus for Modern Maize Varieties in Malawi? Food Policy, 37: 504-510.
31. Mamo, T. and Parsons, J. W. 1987. Iron Nutrition of Eragrostis Tef. Trop. Agr. (Trinidad), 64: 313-317.
32. Mariano, M.J., Villano, R. and Fleming, E. 2012. Factors Influencing Farmers’ Adoption of Modern Rice Technologies and Good Management Practices in the Philippines. Agricultural Systems, 110: 41-53.
33. Mekbib, F. 2003. Yield Stability in Common Bean (Phaseolus Vulgaris L.) Genotypes. Euphytica, 130: 147-153.
34. Mekbib, F. 2006. Farmer and Formal Breeding of Sorghum (Sorghum bicolor (L.) Moench) and the Implications for Integrated Plant Breeding. Euphytica, 152: 163-176.
35. Mayo, S. C. 1944. Some Concepts of Farm Labor Availability. Social Forces, 23: 170-174.
36. Negi, G. C. S. 1994. High Yielding vs. Traditional Crop Varieties: A Socio-Agronomic Study in a Himalayan Village in India. Mountain Research and Development, 14(3): 251 - 254.
37. Nelson, J. A. 1993. Household Equivalence Scales: Theory versus Policy. Journal of Labor Economics, 11(3): 471-493.
38. Ogunniyi, L. T., Adepoju, A. A. and Ganiyu, M. O. 2012. A Comparative Analysis of Economic Efficiency between Traditional and Improved Rice Varieties Farmers in Oriade Local Government Area of Osun State. Trends in Agricultural Economics, 5(3): 70-82.
39. Pachico, D. and Ashby, J. A. 1983. Stages in Technology Diffusion Among Small Farmers: Biological and Management Screening of a New Rice Variety in Nepal. Agr. Admin., 13: 23-37.
40. Ruttan, V. W. 1977. The Green Revolution: Seven Generalizations. International Development Review, 19: 16 - 23.
41. Sall, S., Norman, D. and Featherstone, A. M. 1998. Adaptability of improved rice varieties in Senegal. Agricultural Systems, 57(1): 101-114.
42. Sall, S., Norman, D. and Featherstone, A. M. 2000. Quantitative Assessment of Improved Rice Variety Adoption: The Farmer’s Perspective. Agricultural Systems, 66: 129-144.
43. Stewart, R. B. and Getachew, S. 1962. Investigations of the Nature of Injera. Economic Botany, 16: 27-130.
44. Thiele, G. 1999. Informal Potato Seed Systems in the Andes: Why Are They Important and What Should We Do With Them? World Development, 27(1): 83 - 99.
45. Yifru, T. and Hammer, K. 2006. Farmers’ Perception and Genetic Erosion of Tetraploid Wheats Landraces in Ethiopia. Generic Resources and Crop Evolution, 53: 1099 - 1113.
46. Wale, E. 2012. Explaining Farmers’ Decisions to Abandon Traditional Varieties of Crops: Empirical Results from Ethiopia and Implications for On-Farm Conservation. Journal of Sustainable Agriculture, 36(5): 545-563.
47. Wale, E. and Yalew A. 2007. Farmers’ Variety Attribute Preferences: Implications for Breeding Priority Setting and Agricultural Extension Policy in Ethiopia. African Development Review, 19(2): 379-396.
48. Wubeneh, N. G. and Sanders, J. H. 2006. Farm-Level Adoption of Sorghum Technologies in Tigray, Ethiopia. Agricultural Systems, 91: 122-134.
Journal of Agricultural Science and Technology
Volume 17, Issue 6
November and December 2015
Pages 1449-1462