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Filtering by: Creator Mahaffee, W. F. Remove constraint Creator: Mahaffee, W. F. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

    Creator:
    Lowder, Sarah R.
    Abstract:
    The scale of pest and disease dispersal is often larger than the scale of individual farms. Therefore, an individual grower’s response to pests and diseases can affect and is affected by their surrounding growing region. Individual growers are also not isolated, and engage in various forms of information gathering, sharing,...
    Resource Type:
    Dissertation
    Full Text:
    Action and Information Transfer. Abstract approved: Walter F. Mahaffee The scale of

  • Overwintering of Erysiphe necator and Inoculum Monitoring for Decision Aids

    Creator:
    Thiessen, Lindsey D.
    Abstract:
    Grape powdery mildew (Erysiphe necator) causes economic damages to grape worldwide due to the cost of management and injury to berries. Each region where European grapevine (Vitis vinifera) is grown experiences a unique epidemic, and disease prediction models that are based on empirical correlations of weather data to disease fail...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ Walter F. Mahaffee

  • Compost teas and compost amended container media for plant disease control

    Creator:
    Scheuerell, Steven J.
    Abstract:
    The primary goal of this dissertation research was to assess the use of compost for the control of several foliar and soil borne diseases commercially important in the Pacific Northwest. The use of compost teas to control of gray mold (Botrytis cinerea) on geraniums, powdery mildew (Podosphearapannosa var. rosae), rust...
    Resource Type:
    Dissertation

  • F-tests in partially balanced and unbalanced mixed linear models

    Creator:
    Utlaut, Theresa L.
    Abstract:
    This dissertation considers two approaches for testing hypotheses in unbalanced mixed linear models. The first approach is to construct a design with some type of structure or "partial" balance, so that some of the optimal properties of a completely balanced design hold. It is shown that for a particular type...
    Resource Type:
    Dissertation
    Full Text:
    all combinations of w'; of levels of the factors in T* = .F\g, where v*f and vg denote the vector

  • 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:
    excellent friend. Third, I would like to thank Dr. Walt Mahaffee. Ross introduced me to the world of

  • Addressing Data Resolution in Precision Agriculture

    Creator:
    Kelley, Jason
    Abstract:
    Irrigated agriculture constitutes the greatest consumptive water use globally, so that irrigation efficiency measures are an important part of global efforts to best utilize this limited resource. However, greater irrigation efficiency must be achieved while simultaneously maintaining or increasing crop yields and farming profitability. Incremental water use decisions are made...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________________ Chad W. Higgins Irrigated agriculture constitutes the greatest consumptive water use

  • The influence of selenium on selenoprotein W

    Creator:
    Yeh, Jan-ying
    Abstract:
    The objective of our study was to investigate the effect of selenium on selenoprotein W. Western blot analysis indicated that selenoprotein W is present in muscle, brain, testis and spleen of rat tissues. Tissue distribution of selenoprotein W was not altered in rats fed various selenium levels. Among muscle, brain,...
    Resource Type:
    Dissertation
    Full Text:
    The influence of selenium on selenoprotein W AN ABSTRACT OF

  • Characterization of rodent selenoprotein W promoter

    Creator:
    Amantana, Adams
    Abstract:
    Rat selenoprotein W (SeW) promoter activity was investigated using different concentrations of cadmium, copper, and zinc. Two fragments (404bp and 1265bp) of the SeW promoter, containing a single metal response element (MRE), were ligated into the multiple cloning site of a pGL3-Basic reporter plasmid. The constructs were transfected into cultured...
    Resource Type:
    Dissertation
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    Selenoprotein W Promoter Abstract approved: Philip D. Whanger Rat selenoprotein W (SeW) promoter activity was

  • Biochemical and molecular characteristics of selenoprotein W

    Creator:
    Gu, Qiu-Ping
    Resource Type:
    Dissertation
    Full Text:
    Biochemical and molecular characteristics of selenoprotein W

  • The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

    Creator:
    Farber, Daniel
    Abstract:
    Wheat stripe rust (WSR), also called yellow rust of wheat (Tricitum spp.), causal agent Puccinia striiformis f.sp. tritici (Pst), is a foliar disease of major economic importance on wheat, especially grown in temperate locations. WSR causes major losses of wheat yield, estimated at nearly $ 1 billion per year, and...
    Resource Type:
    Dissertation
    Full Text:
    agent Puccinia striiformis f. sp. tritici (Pst), is a foliar disease of major economic importance on