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  • Effects of host resistance on Mycosphaerella graminicola populations

    Creator:
    Cowger, Christina
    Abstract:
    Mycosphaerella graminicola (anamorph Septoria tritici) causes Septoria tritici blotch, a globally important disease of winter wheat. Resistance and pathogenicity generally vary quantitatively. The pathogen reproduces both sexually and asexually, and the pathogen population is highly genetically variable. Several unresolved questions about the epidemiology of this pathosystem are addressed by this...
    Resource Type:
    Dissertation
    Full Text:
    Molly Hoffer, Dan Coyle, and LaRae Wallace for their skilled and cheerful participation in the

  • Cephalosporium stripe of wheat : seedling-based resistance screening and pathogenic variability

    Creator:
    Cowger, Christina
    Abstract:
    Cephalosporium stripe of wheat (Triticum aestivum), caused by the soilborne fungus Cephalosporium gramineum, results in significant yield reductions in dryland winter wheat crops of the U.S. Pacific Northwest. The development of resistant cultivars offers the best hope for disease control. Breeding for resistance is hampered by the long trial times...
    Resource Type:
    Masters Thesis
    Full Text:
    Cohnstaedt, Dan Coyle, Molly Hoffer, Kris Kovar, Jennifer Mathis, and Luis Sayavedra Soto for their