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dc.contributorFisher, Monicaen_US
dc.contributorAbdoulaye, Tahirouen_US
dc.contributorKassie, Girmaen_US
dc.contributorLunduka, Rodneyen_US
dc.contributorMarenya, Paswelen_US
dc.contributorAsnake, Woinisheten_US
dc.creatorAbate, Tsedekeen_US
dc.identifier.citationTsedeke Abate, Monica Fisher, Tahirou Abdoulaye, Girma Kassie, Rodney Lunduka, Paswel Marenya, Woinishet Asnake. (17/3/2017). Characteristics of maize cultivars in Africa: How modern are they and how many do smallholder farmers grow. Agriculture and Food Security, 6: 30, pp. 1-17.en_US
dc.description.abstractBackground: Maize is the most important cereal and most widely cultivated staple that plays a key role in the food security of sub-Saharan Africa (SSA). Although some countries have achieved significant gains in maize productivity, the SSA average yields are far below what could be obtained with improved cultivars under good crop management. Low cultivar turnover is one among many contributing factors to low maize yields in SSA. At present, there is a critical knowledge gap on the identity, number, and age of maize cultivars currently grown by smallholder farmers on the continent. Results: This study revealed that nearly 500 maize cultivars were grown in 13 African countries surveyed in the 2013/2014 main crop season. Sixty-nine percent of the cultivars each occupied <1% of the total maize area; only two cultivars occupied >40% and four occupied >30% area. Approximately 32% of all the cultivars were hybrids, 23% were improved open-pollinated varieties (OPVs), and 46% were locals. Eastern Africa (EA) and southern Africa (SA) accounted for about 43 and 38%, respectively, of all the cultivars reported, whereas West Africa’s (WA) share was 19%. The average area planted to modern cultivars in the surveyed areas was estimated at 57%—with EA, SA, and WA estimates of 82, 55, and 36%, respectively; however, increased adoption was not necessarily always related to improved productivity, as the latter depends on many additional factors. Each household planted an average of 1.781 cultivars (range 1–8). The overall weighted average age of the cultivars was 15 years, with hybrids and OPVs being 13 and 18 years, respectively. Conclusions: Maize variety turnover in SSA is slower than what is practiced in the USA and other world regions such as Latin America and Asia. The substantial variations among regions and countries in all parameters measured suggest a tailored approach to mitigation interventions. Findings of this current study pave the way for replacing the old cultivars with more recent releases that are tolerant or resistant to multiple stresses and are more resilient.en_US
dc.publisherBioMed Centralen_US
dc.sourceAgriculture and Food Security;6:30 ,(2017) Pagination 1-17en_US
dc.subjectsmallholder agricultureen_US
dc.subjectvariety turnoveren_US
dc.subjectage of varietiesen_US
dc.subjectmaize adoptionen_US
dc.titleCharacteristics of maize cultivars in Africa: How modern are they and how many do smallholder farmers grow?en_US
dc.typeJournal Articleen_US
cg.creator.idAbdoulaye, Tahirou: 0000-0002-8072-1363en_US
cg.creator.idKassie, Girma: 0000-0001-7430-4291en_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Institute of Tropical Agriculture - IITAen_US
cg.contributor.centerInternational Maize and Wheat Improvement Center - CIMMYTen_US
cg.contributor.centerOregon State University, College of Agricultural Sciences - OSU-AgScien_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
dc.identifier.statusOpen accessen_US
cg.journalAgriculture and Food Securityen_US

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