CGSpaceA Repository of Agricultural Research Outputs
    View Item 
    •   CGSpace Home
    • International Institute of Tropical Agriculture (IITA)
    • IITA Journal Articles
    • View Item
       
    • CGSpace Home
    • International Institute of Tropical Agriculture (IITA)
    • IITA Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Introgression of alleles from maize landraces to improve drought tolerance in an adapted germplasm

    Thumbnail
    
    Authors
    Meseka, S.K.
    Fakorede, M.A.B.
    Ajala, S.
    Badu-Apraku, B.
    Menkir, A.
    Date
    2013
    Language
    en
    Type
    Journal Article
    Review status
    Peer Review
    Accessibility
    Limited Access
    Metadata
    Show full item record
    Share
    Citation
    Meseka, S., Fakorede, M., Ajala, S., Badu-Apraku, B., & Menkir, A. (2013). Introgression of alleles from maize landraces to improve drought tolerance in an adapted germplasm. Journal of Crop Improvement, 27(1), 96-112.
    Permanent link to cite or share this item: http://hdl.handle.net/10568/76027
    DOI: https://dx.doi.org/10.1080/15427528.2012.729259
    Abstract/Description
    Maize (Zea mays L.) landraces in the northern Guinea savanna and Sudan savanna in West and Central Africa appear to have some drought-adaptive traits. This study was initiated to assess the level of improvement in yield potential and other agronomic traits achieved under drought stress (DS) and in multiple locations (ML) after introgression of alleles from maize landraces into an elite maize variety (AK9443-DMRSR) via backcrossing. Six backcross (BC) populations together with recurrent parent (AK9443-DMRSR), a commercial hybrid (Oba Super-II), and an improved variety (TZLCOMP4C1) were evaluated under controlled DS and full irrigation (FI) during the dry seasons of 1999 and 2000, as well as in seven ML trials. No significant differences were observed among genotypes for grain yield and most of the traits measured under DS and FI. Significant differences were recorded among genotypes for grain yield and other agronomic traits measured in ML and across 11 environments. Drought stress reduced grain yields of the BC1F2 populations by 64% and recurrent parent by 71%. In ML trials, at least half of the populations were better than recurrent parent. The top three BC1F2 populations produced more grains than the recurrent parent (258–360 kg/ha) and Oba Super-II (555–657 kg/ha) with introgression of only 25% genome of the landraces. We concluded that backcross procedure was able to transfer a quantitative trait of grain yield of an elite recurrent parent into maize landraces. Additional backcross generations are needed for improved performance of the BC1F2 populations in drought-prone environments.
    CGIAR Affiliations
    Maize
    AGROVOC Keywords
    DROUGHT TOLERANCE; MAIZE; GERMPLASM; INTROGRESSION; BACKCROSSING
    Subjects
    MAIZE
    Countries
    NIGERIA
    Regions
    AFRICA; WEST AFRICA
    Collections
    • IITA Journal Articles [1807]

    AboutPrivacy policySend Feedback
     

    My Account

    LoginRegister

    Browse

    All of CGSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subjectThis CollectionBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subject

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    AboutPrivacy policySend Feedback