Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics

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dc.creatorMengesha Abera, W.
dc.creatorMenkir, A.
dc.creatorMeseka, S.
dc.creatorBossey, B.
dc.creatorAfolabi, A.
dc.creatorBurgueno, J.
dc.creatorCrossa, J.
dc.date2019-11
dc.date2019-10-16T13:44:48Z
dc.date2019-10-16T13:44:48Z
dc.date.accessioned2026-06-27T16:08:13Z
dc.descriptionVitamin A Deficiency (VAD) is a major public health problem in Sub-Saharan Africa affecting 33 million preschool-age children. Enrichment of maize varieties with provitamin A could provide sustainable and affordable solution to VAD. This study was conducted to understand the extent of GEI effects on both grain yield and provitamin A content in 21 maize synthetics and identify synthetics combining stable performance with high level provitamin A content across diverse environments in West Africa. Combined analysis of variance found significant (p < 0.01) GEI effects that prompted further investigation of the GEI magnitude using mixed model with factor analysis. Factors 1 and 2 explained 71% of the total variability. G5, G4, G12, G18, G2 and G14 were broadly adapted to a range of environments and considered the most stable and high yielding. G8, G1, and G10 were specifically adapted to a group of environments. Whereas, G21, G19 and G17 were found to be the worst and unstable genotypes. G4 combined stable performance with high provitamin A content, whereas G20 and G18 were stable but had low provitamin A contents. Three genotypes, G4, G12 and G14 were found to combine stability with high provitamin A contents. These genotypes can be recommended for production in the low-land tropics of West and Central Africa with similar environments.
dc.identifierhttps://hdl.handle.net/10568/105433
dc.identifier.urihttp://hdl.handle.net/123456789/123540
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceMengesha Wende, A., Menkir, A., Meseka, S., Bossey, B., Afolabi, A., Burgueno, J. & Crossa, J. (2019). Factor analysis to investigate genotype and genotype× environment interaction effects on pro-vitamin A content and yield in maize synthetics. Euphytica, 215(11): 180, 1-15.
dc.subjectprovitamins
dc.subjectcarotenoids
dc.subjectzea mays
dc.subjectstability
dc.subjectvitamin a deficiency
dc.subjectgrain
dc.subjectyields
dc.subjectfactor analysis
dc.subjectgenotype environment interaction
dc.titleFactor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)