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How Accessibility to Seeds Affects the Potential Adoption of an Improved Rice Variety: The Case of The New Rice for Africa (NERICA) in The Gambia

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  • Dibba, Lamin
  • Zeller, Manfred
  • Diagne, Aliou
  • Nielsen, Thea

Abstract

This study estimates the adoption gap of NERICA that exists in the population when access to seeds is a constraint. Treatment evaluation technique is applied to con-sistently estimate the potential NERICA adoption rate and its determinants using panel data from a stratified random sample of 515 rice farmers in The Gambia. The results show that the NERICA adoption rate could have been 76% instead of the observed 66% sample estimate in 2010 provided that every rice farmer had been aware of NERICA’s existence before the 2010 rice growing season. However, further investigation finds that if all the rice farmers had been aware of and had access to NERICA seeds, adoption would have been 92%. This reveals that if awareness had not been a constraint, 16% of farmers would have failed to adopt NERICA due to lack of access to seeds. Farmer contact with extension services and access to in-kind credit are significant determinants of access to and adoption of NERICA varieties.

Suggested Citation

  • Dibba, Lamin & Zeller, Manfred & Diagne, Aliou & Nielsen, Thea, 2015. "How Accessibility to Seeds Affects the Potential Adoption of an Improved Rice Variety: The Case of The New Rice for Africa (NERICA) in The Gambia," Quarterly Journal of International Agriculture, Humboldt-Universitaat zu Berlin, vol. 54(1), pages 1-26, February.
    • Handle: RePEc:ags:qjiage:206295
    DOI: 10.22004/ag.econ.206295
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    Cited by:

    1. Tomonori Yokouchi & Kazuki Saito, 2016. "Factors affecting farmers’ adoption of NERICA upland rice varieties: the case of a seed producing village in central Benin," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 8(1), pages 197-209, February.
    2. Blanca Isabel Sánchez-Toledano & Zein Kallas & Oscar Palmeros Rojas & José M. Gil, 2018. "Determinant Factors of the Adoption of Improved Maize Seeds in Southern Mexico: A Survival Analysis Approach," Sustainability, MDPI, vol. 10(10), pages 1-22, October.
    3. SANCHEZ, Blanca I. & Kallas, Zein & Gil, Jose M., 2017. "To Adopt, or Not to Adopt the Case Study of the Improved Corn Seeds in Chiapas (México)," 2017 Annual Meeting, July 30-August 1, Chicago, Illinois 258130, Agricultural and Applied Economics Association.
    4. Guevara Alvarez, Gloria, 2020. "Overcoming quality uncertainty of hybrid maize seeds: An individually-randomized trial of labeling information in Chiapas, Mexico," 2020 Annual Meeting, July 26-28, Kansas City, Missouri 304311, Agricultural and Applied Economics Association.
    5. Yigezu A. Yigezu & Zewdie Bishaw & Abdoul Aziz Niane & Jeffrey Alwang & Tamer El-Shater & Mohamed Boughlala & Aden Aw-Hassan & Wuletaw Tadesse & Filippo M. Bassi & Ahmed Amri & Michael Baum, 2021. "Institutional and farm-level challenges limiting the diffusion of new varieties from public and CGIAR centers: The case of wheat in Morocco," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 13(6), pages 1359-1377, December.
    6. Tomonori Yokouchi & Kazuki Saito, 2016. "Factors affecting farmers’ adoption of NERICA upland rice varieties: the case of a seed producing village in central Benin," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 8(1), pages 197-209, February.
    7. Franklin Simtowe & Paswel Marenya & Emily Amondo & Mosisa Worku & Dil Bahadur Rahut & Olaf Erenstein, 2019. "Heterogeneous seed access and information exposure: implications for the adoption of drought-tolerant maize varieties in Uganda," Agricultural and Food Economics, Springer;Italian Society of Agricultural Economics (SIDEA), vol. 7(1), pages 1-23, December.
    8. Lamin Dibba & Manfred Zeller & Aliou Diagne, 2017. "The impact of new Rice for Africa (NERICA) adoption on household food security and health in the Gambia," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 9(5), pages 929-944, October.

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