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    Varietal improvement

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    Book Chapter (1.097Mb)
    Authors
    International Center for Tropical Agriculture
    Date Issued
    1980
    Language
    en
    Type
    Book Chapter
    Accessibility
    Open Access
    Metadata
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    Citation
    Varietal improvement.1980. In: Centro Internacional de Agricultura Tropical. Cassava Program 1980: Annual Report . CIAT, Cali, CO. p. 33-37. (CIAT series no. 02ECI-80)
    Permanent link to cite or share this item: https://hdl.handle.net/10568/81742
    External link to download this item: http://ciat-library.ciat.cgiar.org/Articulos_ciat/2015/16646i.pdf
    Abstract/Description
    Since considerable progress has been made in the yielding ability and disease resistance through single-trait selection of cassava material for HI, branching type, or resistance to CBB (Xanthomonas campestris pv. manihotis) and superelongation [Sphaceloma (Elsinoe) manihoticola], emphasis in selection has gradually shifted towards overall performance over several years at each selection site. Production of hybrid seeds by controlled pollination was increased 4-fold after critical pest problems were overcome. (CIAT)
     
    Debido a que se han obtenido considerales progresos en la capacidad de rendimiento y en la resistencia a enfermedades mediante la seleccion de materiales de yuca por sus caracteristicas individuales en relacion con IC, tipo de ramificacion o resistencia a CBB (Xanthomonas capestris pv. manihotis) y superalargamiento (Sphaceloma (Elsinoe) manihoticola), el enfasis se deriva gradualmente hacia la seleccion de tales materiales por su comportamiento general durante varios anos en cada sitio. Se cuadruplico la produccion de semilla hibrida por polinizacion controlada despues de superar los problemas criticos de plagas. (CIAT)
     
    AGROVOC Keywords
    manihot esculenta; adaptation; ecosystems; field experiments; hybrids; research; seed; selection; ecology; propagation materials
    Subjects
    CASSAVA; SEED SYSTEMS;
    Countries
    Colombia
    Regions
    South America; Latin America
    Collections
    • CIAT Book Chapters [2025]

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