• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    GGE biplot analysis of Dioscorea rotundata cultivar tela genotypes in Ghana

    Thumbnail
    View/Open
    U09ArtOtooBiplotInthomDev.pdf (151.6Kb)
    Date
    2009
    Author
    Otoo, E.
    Asiedu, Robert
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    A five-year study involving 38 genotypes of D. rotundata cultivar Tela was evaluated in 15 environments from 2000 to 2004 using CRD. The three locations were Bodwease (Coastal Savanna), Fumesua (Forest) and Wenchi (Forest-Savanna Transition). The objective was to assess the effect of genotype and genotype x environment interaction on the tuber yield of 38 white yam (D. rotundata L. cv. Tela) genotypes via GGE (genotype plus genotype x environment) biplot methodology. Significant differences (p<0.005) were observed among the genotypes with respect to genotype, environment and genotype by environment interactions. Biplot analysis identified three mega-environments corresponding to three agroecologies. Fumesua environments were most representative and discriminating. Bodwease environments except BOD04 were most discriminating but most non-representative and Wenchi least discriminating and least representative. Three winning genotypes, G10, G18 and G1, were the winning genotypes in Bodwease, Fumesua and Wenchi respectively, with G18 as the most stable and high yielding D. rotundata cv. Tela genotype.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2515
    IITA Subjects
    Yam; Food Science; Plant Ecology; Plant Health
    Agrovoc Terms
    D. Rotundata; Agroecologies; Genotypes; Genotype X Environment Interaction
    Regions
    Africa; West Africa
    Countries
    Ghana
    Journals
    Journal of Food, Agriculture & Environment
    Collections
    • Journal and Journal Articles5283
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository