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  • Investigation of hop downy mildew through association mapping and observations of the oospore

    Creator:
    Parker, Thomas B.
    Abstract:
    Hop downy mildew is a devastating disease affecting hop requiring expensive fungicide applications throughout the growing season. Plant resistance is highly desirable and theorized as being decidedly quantitative with dominance and epistasis involved in resistance. An association mapping approach using a mixed-model was used to identify AFLP markers associated with...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ John A. Henning Hop downy mildew is a devastating disease affecting hop requiring expensive

  • Induced Mutation for Improving Cascade and Centennial Hop

    Creator:
    Getty, Brooke A.
    Abstract:
    Hop, Humulus lupulus L. is a dioecious perennial species. The female hop plant produces flowers that mature into ‘cones’ which are used as a raw material in the beer brewing process to impart bitterness, flavor, and aroma. The craft beer industry in the current global beer market continues to experience...
    Resource Type:
    Masters Thesis
    Full Text:
    special thanks to the members of my committee, especially Dr. John Henning. I’ve truly enjoyed working

  • Host range and chemical composition of lactic streptococcal bacteriophages

    Creator:
    Henning, David Ralph
    Abstract:
    Comparisons were made of the abilities of Streptococcus lactis, Streptococcus cremoris and Streptococcus diacetilactis bacteriophages to endure various laboratory isolation and storage treatments. Neutralization of Cottage cheese whey containing phages offered no survival advantage over unneutralized samples, refrigeration of neutral and acid whey samples increased the survival of only the...
    Resource Type:
    Dissertation
    Full Text:
    streptococcal bacteriophages AN ABSTRACT OF THE THESIS OF DAVID RALPH HENNING for the Ph. D. in MICROBIOLOGY

  • A mathematical model of n-hexadecane transformation by an Arthrobacter species

    Creator:
    Henning, Frank Allen
    Resource Type:
    Dissertation
    Full Text:
    arthrobacter species AN ABSTRACT OF THE THESIS OF FRANK ALLEN HENNING for the DOCTOR OF PHILOSOPHY (Name

  • Zinc-phosphorus relationships in five plant species

    Creator:
    Henning, Stanley John
    Abstract:
    The effects of zinc and phosphorus treatments on five different plant species were investigated in a greenhouse experiment. A second greenhouse experiment extended these investigations in sweet corn over a broad range of phosphorus treatments with and without adequate zinc nutrition to study phosphorus induced zinc deficiency. The plant responses...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF STANLEY JOHN HENNING for the

  • Aluminum toxicity in the primary meristem of wheat roots

    Creator:
    Henning, Stanley John
    Abstract:
    The progression and consequences of aluminum toxicity were studied microscopically in the root tips of four wheat varieties representing different classes of Al tolerance. The root tips studied were collected from seedlings grown in nutrient solution cultures containing either sublethal or lethal Al treatments which were unique for each variety....
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF STANLEY JOHN HENNING for the

  • Factors associated with school teachers' attitudes toward HIV prevention education in Lusaka, Zambia

    Creator:
    Henning, Margaret Jo
    Abstract:
    In Zambia, there are approximately 920,000 people living with HIV/AIDS. Children are often referred to as a "window of hope" due to a low HIV/AIDS prevalence rate (UNAIDS/WHO, 2006). With growing numbers of infections and an increased strain on the social and economic structure due to HIV/AIDS there is a...
    Resource Type:
    Dissertation
    Full Text:
    . We did it! Thank you. CONTRIBUTION OF AUTHORS Margaret J. Henning

  • Riparian bird communities in Portland, Oregon : habitat, urbanization, and spatial scale patterns

    Creator:
    Hennings, Lori A.
    Abstract:
    Urban ecosystems are characterized by human disturbance and changes in the amount, types, and spatial arrangement of wildlife habitat. The relative importance of habitat and human associated variables to urban birds is unknown. In 1999, I surveyed spring bird and plant communities along 54 perennial streams in the Portland, Oregon...
    Resource Type:
    Masters Thesis
    Full Text:
    , and J. O. Price at Metro Regional Services contributed project input, GIS data, supplies and logistic

  • Diagnostic analysis for mechanical systems

    Creator:
    Henning, Scott A.
    Abstract:
    An analysis and modeling method of the diagnostic characteristics of a mechanical or electromechanical system is presented. Diagnosability analysis is especially relevant given the complexities and functional interdependencies of modern-day systems, since improvements in diagnosability can lead to a reduction of a system's life-cycle costs. The diagnosis process of a...
    Resource Type:
    Masters Thesis
    Full Text:
    by Scott A. Henning A Thesis Submitted to Oregon State University In Partial Fulfillment

  • The Pursuit of Hoppiness : Propelling Hop into the Genomic Era

    Creator:
    Hill, Steven T.
    Abstract:
    Hop (Humulus lupulus L. var lupulus) is a plant of great cultural significance, used as a medicinal herb for thousands of years, and for flavor and as a preservative in brewing beer. Studies of the medicinal effects of the unique compounds produced by hop have led to interest from the...
    Resource Type:
    Masters Thesis
    Full Text:
    , D. Hendrix and J. A. Henning Euphytica The Netherlands May 2016, Volume 209, Issue 1