Genotype x environment interaction and yield stability of normal and biofortified maize inbred lines in stress and non-stress environments

dc.creatorGoredema-Matongera, N.
dc.creatorThokozile Ndhlela
dc.creatorvan Biljon, A.
dc.creatorLabuschagne, M.
dc.date2023-01-19T01:05:12Z
dc.date2023-01-19T01:05:12Z
dc.date2023
dc.date.accessioned2023-07-17T20:10:12Z
dc.date.available2023-07-17T20:10:12Z
dc.identifierhttps://hdl.handle.net/10883/22435
dc.identifier10.1080/23311932.2022.2163868
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514181
dc.descriptionBreeding for nutrient-dense maize cultivars is reliant on introductions of exotic inbred lines enhanced with high levels of the targeted nutrients. Sometimes, the exotic nutrient donor germplasm may not adapt well in new growing environments, thereby reducing seed production when used in hybrid combinations. Therefore, evaluating introduced trait donors for adaptation, through genotype × environment interaction (GEI) analysis is crucial in breeding for quality traits. The objectives of this study were to (i) evaluate grain yield performance of introduced zinc-enhanced, provitamin A, normal and quality protein maize lines across stress and non-stress environments in Zimbabwe, (ii) assess the presence of GEI and (iii) identify high yielding and stable lines that could be used for developing Zn-enhanced hybrids with improved seed producibility. Additive main effects and multiplicative interaction (AMMI) and genotype plus genotype × environment interaction (GGE) biplot analyses were used for stability analysis. GEI effects were highly significant (P ≤ 0.01) for grain yield. Grain yields for the inbred lines ranged from 1.28 to 3.5 t ha−1. The Zn donor G11 (ITZN313) had the highest grain yield of 3.5 t ha−1 across environments, whereas the normal check G24 (CZL1111) had the lowest grain yield. G2 (CLWQHZN14), G4 (CLWQHZN19), G8 (OBATANPA6), G11 (ITZN313) and G18 (CML546) were stable and high yielding and can be used for developing Zn-enhanced hybrids. Five mega-environments were identified, clearly separating stress and non-stress environments. E11 (Chisumbanje WW) was the most discriminating and representative test environment and could be used to identify superior genotypes.
dc.languageEnglish
dc.publisherTaylor and Francis
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source1
dc.source9
dc.source2331-1932
dc.sourceCogent Food and Agriculture
dc.source2163868
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectZinc-Enhanced
dc.subjectGrain Yield
dc.subjectMAIZE
dc.subjectINBRED LINES
dc.subjectZINC
dc.subjectGENOTYPE ENVIRONMENT INTERACTION
dc.subjectGRAIN
dc.subjectMaize
dc.titleGenotype x environment interaction and yield stability of normal and biofortified maize inbred lines in stress and non-stress environments
dc.typeArticle
dc.typePublished Version
dc.coverageUnited Kingdom


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