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Filtering by: Subject Hybridization Remove constraint Subject: Hybridization Decade 1980-1989 Remove constraint Decade: 1980-1989

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  • Chemically induced pollen supression and subsequent natural outcrossing in selected wheat cultivars (Tritcum aestivum L. en Thell)

    Creator:
    Lewis, Hal A.
    Abstract:
    Effective chemical control of pollination would provide an alternative to the cytoplasmic male-sterile system in hybrid wheat (Triticum aestivum L.) production. The objective of this study was to determine concentration, formulation, growth stage of application and genotypic effects on levels of induced pollen suppression and subsequent natural out-crossing from foliar...
    Resource Type:
    Masters Thesis
    Full Text:
    suppression and subsequent natural out-crossing from foliar applications of promising Chemical Hybridization

  • Determination of differential gene action in Bdellovibrio bacteriovorus using RNA-DNA hybridization techniques

    Creator:
    Reed, Margaret Ann
    Abstract:
    In an attempt to study the times in the lifecycle of Bdellovibrio bacteriovorus at which various genes are transcribed, the patterns of messenger ribonucleic acid (mRNA) and ribosomal ribonucleic acid (rRNA) syntheses were examined using two different types of hybridization systems. The hybridization system using membrane bound deoxyribonucleic acid (DNA)...
    Resource Type:
    Masters Thesis
    Full Text:
    bacteriovorus using RNA-DNA hybridization techniques AN ABSTRACT OF THE THESIS OF Margaret Ann Reed for the

  • Developmental mutants of Phaseolus vulgaris L.

    Creator:
    Shii, Chou Tou
    Abstract:
    Hybrids with abnormal development were obtained when particular genotypes of Phaseolus vulgaris L. were crossed. The phenotypic aberrations of the F₁s included retarded growth, chlorosis of the trifoliate leaves and the formation of adventitious roots on the hypocotyls. The expression of the abnormalities was dependent on the temperature. At high...
    Resource Type:
    Dissertation
    Full Text:
    INTRODUCTION The hybridization program at CIAT (Centro Internacional de Agri- cultura Tropical, Cali

  • Isozyme banding patterns and embryo development in interspecific crosses of Phaseolus

    Creator:
    Guo, Mei
    Abstract:
    Interspecific hybridization between Phaseolus vulgaris and P. coccineus results in the formation of either mature F₁ seeds or abnormal embryos, depending on the direction of the cross. However, normal as well as abnormal embryos occur in the reciprocal F₂ populations. The exact cause of abnormal embryo development is unknown. To...
    Resource Type:
    Masters Thesis
    Full Text:
    >- Mok Interspecific hybridization between Phaseolus vulgaris and P. coccineus results in the