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Testing alternative methods of varietal identification using DNA fingerprinting: results of pilot studies in Ghana and Zambia

dc.contributor.authorMaredia, Mywish K.
dc.contributor.authorReyes, B.A.
dc.contributor.authorManu-Aduening, J.A.
dc.contributor.authorDankyi, Ansong A.
dc.contributor.authorHamazakaza, P.
dc.contributor.authorMuimui, K.
dc.contributor.authorRabbi, Ismail Y
dc.contributor.authorKulakow, P.A.
dc.contributor.authorParkes, E.
dc.contributor.authorAbdoulaye, Tahirou
dc.contributor.authorKatungi, E.
dc.contributor.authorRaatz, B.
dc.date.accessioned2019-12-04T11:04:45Z
dc.date.available2019-12-04T11:04:45Z
dc.date.issued2016-10
dc.identifier.citationMaredia, M.K., Reyes, B.A., Manu-Aduening, J., Dankyi, A., Hamazakaza, P., Muimui, K., ... & Abdoulaye, T. (2016). Testing alternative methods of varietal identification using DNA fingerprinting: results of pilot studies in Ghana and Zambia (46 p.). Michigan: Michigan State University.
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1496
dc.description.abstractVarietal adoption based on household surveys has mostly relied on farmers’ response to varietal identification. This method can give biased estimates if farmers are unable to identify improved varieties as a group or by name, or give names that do not match with the released variety list. To tackle these potential problems other innovative methods have been suggested that require time and resource intensive data collection such as including follow-up questions in the survey instrument to gather information on varietal traits, visiting the field to observe plant characteristics, or collecting sample materials (i.e., photos, seeds/plant tissues) from the farmers for later verification by experts. However, the accuracy of these different methods for identifying varieties grown by farmers to be able to estimate variety specific adoption is unknown. This paper reports the results of two pilot studies conducted in Ghana and Zambia to test and validate some of these different approaches of collecting variety-specific adoption data against the benchmark of DNA-fingerprinting to determine which method can accurately identify released varieties used by farmers. Results suggest large variations in the estimates of varietal adoption obtained by these different methods compared to DNA fingerprinting results. Results also point to potential challenges of these alternative methods of varietal identification, including DNA fingerprinting in a developing country setting. The implications of these results on future adoption and impact studies are discussed.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent46 p.
dc.language.isoen
dc.publisherMichigan State University
dc.subjectCassava
dc.subjectBeans
dc.subjectDna Fingerprinting
dc.subjectGrain Legumes
dc.titleTesting alternative methods of varietal identification using DNA fingerprinting: results of pilot studies in Ghana and Zambia
dc.typeReport
dc.description.versionPeer Review
cg.contributor.crpPolicies, Institutions and Markets
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationMichigan State University
cg.contributor.affiliationInternational Center for Tropical Agriculture
cg.contributor.affiliationCouncil for Scientific and Industrial Research, Ghana
cg.contributor.affiliationAgricultural Innovation Consult
cg.contributor.affiliationZambia Agricultural Research Institute
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionSouthern Africa
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.countryZambia
cg.researchthemeBIOTECH & PLANT BREEDING
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectCassava
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPolicies And Institutions
cg.howpublishedFormally Published
cg.publicationplaceMichigan, U.S.A.
cg.accessibilitystatusLimited Access
local.dspaceid81002
cg.targetaudienceScientists


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