Impact of CGIAR maize germplasm in sub-Saharan Africa

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dc.creatorKrishna, V.V.
dc.creatorLantican, M.A.
dc.creatorBoddupalli, P.M.
dc.creatorPixley, K.
dc.creatorAbdoulaye, Tahirou
dc.creatorMenkir, A.
dc.creatorBanziger, Marianne
dc.creatorErenstein, O.
dc.date2023-01
dc.date2023-01-05T08:20:30Z
dc.date2023-01-05T08:20:30Z
dc.date.accessioned2026-06-27T15:54:10Z
dc.descriptionThis study reports on the adoption and impacts of CGIAR-related maize varieties in 18 major maize-producing countries in sub-Saharan Africa (SSA) during 1995–2015. Of the 1345 maize varieties released during this timeframe, approximately 60% had a known CGIAR parentage. About 34% (9.5 million ha) of the total maize area in 2015 was cultivated with ’new’ CGIAR-related maize varieties released between 1995 and 2015. In the same year, an additional 13% of the maize area was cultivated with ’old’ CGIAR-related maize varieties released before 1995. The aggregate annual economic benefit of using new CGIAR-related maize germplasm for yield increase in SSA was estimated at US$1.1–1.6 billion in 2015, which we attributed equally to co-investments by CGIAR funders, public-sector national research and extension programs, and private sector partners. Given that the annual global investment in CGIAR maize breeding at its maximum was US$30 million, the benefit-cost ratios for the CGIAR investment and CGIAR-attributable portion of economic benefits varied from 12:1–17:1, under the assumption of a 5-year lag in the research investment to yield returns. The study also discusses the methodological challenges involved in large-scale impact assessments. Post-2015 CGIAR tropical maize breeding efforts have had a strong emphasis on stress tolerance.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/126587
dc.identifier.urihttp://hdl.handle.net/123456789/116910
dc.languageen
dc.publisherElsevier
dc.rightsOpen Access
dc.sourceKrishna, V.V., Lantican, M.A., Prasanna, B.M., Pixley, K., Abdoulaye, T., Menkir, A., ... & Erenstein, O. (2023). Impact of CGIAR maize germplasm in sub-Saharan Africa. Field Crops Research, 290: 108756, 1-13.
dc.subjectmaize
dc.subjectsub-saharan africa
dc.subjectvarieties
dc.subjecteconomic impact
dc.subjectgermplasm
dc.titleImpact of CGIAR maize germplasm in sub-Saharan Africa
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)