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    Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties

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    S03ArtOikehAssessmentInthomNodev.pdf (453.6Kb)
    Date
    2003
    Author
    Oikeh, S.O.
    Menkir, A.
    Maziya-Dixon, B.
    Welch, R.
    Glahn, R.P.
    Type
    Journal Article
    Journal Article
    Metadata
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    Abstract/Description
    Twenty elite early-maturing (75−90 days) tropical maize varieties grown in three diverse agroecologies in West Africa were evaluated to identify varieties with high kernel-Fe and -Zn and bioavailable Fe levels. Bioavailable iron was assessed using an in vitro digestion/Caco-2 cell model. Significant (P < 0.001) varietal differences were observed in mean kernel-Fe and -Zn levels. The ranges were 15.5−19.1 mg kg-1 for Fe and 16.5−20.5 mg kg-1 for Zn. Genetic component accounted for 34% of the total variation in kernel-Zn and for 11% of the variation in kernel-Fe levels. Mean bioavailable Fe in varieties ranged between 4% below and 49% above the reference control variety. A significant negative relationship was detected between kernel-P concentration and bioavailable Fe (R = −0.36; P < 0.004; n = 60). Two varieties, ACR90POOL16-DT and ACR86TZESR-W, were identified as the most promising for further evaluation to determine their efficacy as improved sources of iron in target populations.
    https://doi.org/10.1021/jf0261708
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4156
    Digital Object Identifier (DOI)
    https://doi.org/10.1021/jf0261708
    IITA Subjects
    Maize; Plant Breeding
    Agrovoc Terms
    Iron; Bioavailability; Zinc; Maize; Early Maturation
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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