Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam
Context In many low- and middle-income countries, smallholder farmers cultivating vegetatively propagated crops (VPCs) have limited access to quality planting material. This constraint can limit both the yield and returns to VPC cultivation. Yet policy and regulations designed to strengthen access t...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2025
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/175613 |
| _version_ | 1855532751687516160 |
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| author | Spielman, David J. Gatto, Marcel Wossen, Tesfamicheal McEwan, Margaret Abdoulaye, Tahirou Maredia, Mywish K. Hareau, Guy |
| author_browse | Abdoulaye, Tahirou Gatto, Marcel Hareau, Guy Maredia, Mywish K. McEwan, Margaret Spielman, David J. Wossen, Tesfamicheal |
| author_facet | Spielman, David J. Gatto, Marcel Wossen, Tesfamicheal McEwan, Margaret Abdoulaye, Tahirou Maredia, Mywish K. Hareau, Guy |
| author_sort | Spielman, David J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Context
In many low- and middle-income countries, smallholder farmers cultivating vegetatively propagated crops (VPCs) have limited access to quality planting material. This constraint can limit both the yield and returns to VPC cultivation. Yet policy and regulations designed to strengthen access to quality VPC planting materials and scale innovative programs that deliver these materials have been relatively unsuccessful to date. Part of the problem lies the unique biological and economic characteristics of vegetative propagation and its distinctness from cereal crops that dominate narratives on seed sector reforms and the resulting policy and regulatory regimes.
Objective
The study analyzes both theory and evidence on existing and alternative models of regulation that may incentivize cost-effective multiplication and distribution in VPC seed systems and markets.
Methods
The study draws on case studies of policy and practice related to quality assurance regulations in four crop-country combinations: cassava in Nigeria and Vietnam, and potato in Kenya and Vietnam. The case studies rely on qualitative analysis that was conducted using a combination of key informant interviews, focus group discussions, analysis of regulatory documents, and analysis of publicly available secondary data.
Results and conclusions
The study describes five strategies for regulating VPC seed systems in our four crop-country combinations, each with its own generalizable costs and benefits. The application (or marginalization) of these strategies is often shaped by fluid coalitions of actors with competing interests and framing narratives, and driven by organizational innovations, technological opportunities, trade relationships, and crises that are crop- and country-specific.
Significance
These findings suggest that regulations designed around strict, centralized quality control systems tend to limit market size, while more localized production systems are limited by both capacity and reach. They also suggest the need for alternatives that balance a permissive regulatory regime with decentralized production systems, grassroots capacity development, market surveillance, and systems that integrate multiple approaches to quality assurance. A detailed set of policy recommendations follows from these findings that inform ongoing country efforts to revise VPC seed sector policies and regulations—reforms that are being pursued not only in the crop-country case studies highlighted here, but also in other countries in both Africa and Asia. |
| format | Journal Article |
| id | CGSpace175613 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1756132025-10-26T12:55:21Z Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam Spielman, David J. Gatto, Marcel Wossen, Tesfamicheal McEwan, Margaret Abdoulaye, Tahirou Maredia, Mywish K. Hareau, Guy policy analysis regulations seed systems quality assurance Context In many low- and middle-income countries, smallholder farmers cultivating vegetatively propagated crops (VPCs) have limited access to quality planting material. This constraint can limit both the yield and returns to VPC cultivation. Yet policy and regulations designed to strengthen access to quality VPC planting materials and scale innovative programs that deliver these materials have been relatively unsuccessful to date. Part of the problem lies the unique biological and economic characteristics of vegetative propagation and its distinctness from cereal crops that dominate narratives on seed sector reforms and the resulting policy and regulatory regimes. Objective The study analyzes both theory and evidence on existing and alternative models of regulation that may incentivize cost-effective multiplication and distribution in VPC seed systems and markets. Methods The study draws on case studies of policy and practice related to quality assurance regulations in four crop-country combinations: cassava in Nigeria and Vietnam, and potato in Kenya and Vietnam. The case studies rely on qualitative analysis that was conducted using a combination of key informant interviews, focus group discussions, analysis of regulatory documents, and analysis of publicly available secondary data. Results and conclusions The study describes five strategies for regulating VPC seed systems in our four crop-country combinations, each with its own generalizable costs and benefits. The application (or marginalization) of these strategies is often shaped by fluid coalitions of actors with competing interests and framing narratives, and driven by organizational innovations, technological opportunities, trade relationships, and crises that are crop- and country-specific. Significance These findings suggest that regulations designed around strict, centralized quality control systems tend to limit market size, while more localized production systems are limited by both capacity and reach. They also suggest the need for alternatives that balance a permissive regulatory regime with decentralized production systems, grassroots capacity development, market surveillance, and systems that integrate multiple approaches to quality assurance. A detailed set of policy recommendations follows from these findings that inform ongoing country efforts to revise VPC seed sector policies and regulations—reforms that are being pursued not only in the crop-country case studies highlighted here, but also in other countries in both Africa and Asia. 2025-10 2025-07-11T14:29:11Z 2025-07-11T14:29:11Z Journal Article https://hdl.handle.net/10568/175613 en Open Access Elsevier Spielman, David J.; Gatto, Marcel; McEwan, Margaret; Abdoulaye, Tahirou; Maredia, Mywish K.; and Hareau, Guy. 2025. Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam. Agricultural Systems 229(October 2025): 104441. https://doi.org/10.1016/j.agsy.2025.104441 |
| spellingShingle | policy analysis regulations seed systems quality assurance Spielman, David J. Gatto, Marcel Wossen, Tesfamicheal McEwan, Margaret Abdoulaye, Tahirou Maredia, Mywish K. Hareau, Guy Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title | Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title_full | Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title_fullStr | Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title_full_unstemmed | Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title_short | Policy and regulation in seed sector development for vegetatively propagated crops: Insights from Kenya, Nigeria, and Vietnam |
| title_sort | policy and regulation in seed sector development for vegetatively propagated crops insights from kenya nigeria and vietnam |
| topic | policy analysis regulations seed systems quality assurance |
| url | https://hdl.handle.net/10568/175613 |
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