Identifying quality protein maize inbred lines for improved nutritional value of maize in Southern Africa

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dc.contributor.authorAmegbor, Isaac
dc.contributor.authorVan Biljon, Angeline
dc.contributor.authorShargie, Nemera
dc.contributor.authorTarekegne, Amsal
dc.contributor.authorLabuschagne, Maryke
dc.date.accessioned2022-04-11T07:04:44Z
dc.date.available2022-04-11T07:04:44Z
dc.date.issued2022
dc.description.abstractMalnutrition, as a result of deficiency in essential nutrients in cereal food products and consumption of a poorly balanced diet, is a major challenge facing millions of people in developing countries. However, developing maize inbred lines that are high yielding with enhanced nutritional traits for hybrid development remains a challenge. This study evaluated 40 inbred lines: 26 quality protein maize (QPM) lines, nine non-QPM lines, and five checks (three QPM lines and two non-QPM lines) in four optimum environments in Zimbabwe and South Africa. The objective of the study was to identify good-quality QPM inbred lines for future hybrid breeding efforts in order to increase the nutritional value of maize. The QPM lines had a lower protein content (7% lower) than that of the non-QPM lines but had 1.9 times more tryptophan and double the quality index. The lysine- and tryptophan-poor  y-zein protein fraction was 41% lower in QPM than in non-QPM, with a subsequent increase in y-zein. There was significant variation within the QPM inbred lines for all measured quality characteristics, indicating that the best lines can be selected from this material without a yield penalty. QPM lines that had both high protein and tryptophan levels, which can be used as parents for highly nutritious hybrids, were identified.en_ZA
dc.description.versionPublisher's versionen_ZA
dc.identifierhttps://doi.org/10.3390/foods11070898
dc.identifier.citationAmegbor, I., Van Biljon, A., Shargie, N., Tarekegne, A., & Labuschagne, M. (2022). Identifying Quality Protein Maize Inbred Lines for Improved Nutritional Value of Maize in Southern Africa. Foods, 11, 898. https://doi.org/10.3390/ foods11070898en_ZA
dc.identifier.issn2304-8158
dc.identifier.urihttp://hdl.handle.net/11660/11570
dc.language.isoenen_ZA
dc.publisherMDPIen_ZA
dc.rights.holderAuthor(s)en_ZA
dc.rights.licensehttps://creativecommons.org/licenses/by/4.0/
dc.subjectMaize inbred linesen_ZA
dc.subjectNutritional valueen_ZA
dc.subjectProtein qualityen_ZA
dc.titleIdentifying quality protein maize inbred lines for improved nutritional value of maize in Southern Africaen_ZA
dc.typeArticleen_ZA
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