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Filtering by: Creator Etzel, Chad E. Remove constraint Creator: Etzel, Chad E. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Evaluation of genetic diversity in wild populations of black raspberry (Rubus occidentalis L.)

    Creator:
    Dossett, Michael
    Abstract:
    In recent years, there has been renewed interest in black raspberry (Rubus occidentalis L.) breeding. This has been spurred, in part, by an increase in black raspberry consumption due to studies that have shown them to be particularly high in anthocyanin content indicating high levels of antioxidants. Present cultivars are...
    Resource Type:
    Dissertation
    Full Text:
    Raspberry (Rubus occidentalis L.) Abstract approved: Chad E. Finn In recent years

  • Exploration of the feasibility of developing a winter hardy 'Marion' blackberry through genetic engineering

    Creator:
    Meng, Rengong
    Abstract:
    Experiments focusing on plant growth regulators’ concentrations and combination, mineral salt formulations and TDZ pretreatment formations were conducted to optimize in vitro shoot regeneration from leaf and petiole explants of 'Marion' blackberry. Optimum shoot formation was obtained when stock plants were incubated in TDZ pretreatment medium for three weeks before...
    Resource Type:
    Dissertation
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    through genetic engineering Abstract approved: Chad E. Finn Experiments focusing on plant

  • 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

  • Understanding Public Perceptions of Post-Wildfire Landscape Recovery

    Creator:
    Kooistra, Chad M.
    Abstract:
    Forest disturbances, such as wildfires, pine beetle outbreaks, and floods are important features of many landscapes and ecosystems. Many disturbances are increasing in size, frequency, and intensity due to changing climates and land management decisions. The changing ecological and aesthetic conditions following a disturbance can lead to negative short- and...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Chad M. Kooistra

  • Leveraging the Food-Energy-Water Nexus for Planet Resilience

    Creator:
    Steadman, Casey L.
    Abstract:
    We have sufficient evidence that our historical management of natural resources is not sustainable. Food production is stagnating or declining. Nonrenewable energy sources on which the energy sector has historically depended are being rapidly depleted. Water resources, for which the energy and food sectors compete, are being depleted and impaired....
    Resource Type:
    Dissertation
    Full Text:
    Chad W. Higgins We have sufficient evidence that our historical management of natural resources

  • Environmental Impacts of Renewable Energy (solar and wind) on Water, Food and Energy Nexus

    Creator:
    Hassanpour Adeh, Elnaz
    Abstract:
    Rapid increasing of renewable energies and the knowledge about their environmental effects are very limited. As a result, the renewable energies (e.g. solar or wind energies) will play a vital role in the future because it is well accepted by environmental friendly industries. This dissertation presents the modeling, data analysis...
    Resource Type:
    Dissertation
    Full Text:
    Energy (solar and wind) on Water, Food and Energy Nexus Abstract approved: Chad W

  • Irrigation Innovations to Increase Efficiency and Sustainability

    Creator:
    Al-agele, Hadi A.
    Abstract:
    The first part of the dissertation chronicles irrigation technology changes to progressively improve water application efficiency, water use efficiency, irrigation water productivity and crop production. Technological innovation in irrigation, from 6000 BC to present, has been driven by an unchanging need to provide support for growing populations. The first irrigation...
    Resource Type:
    Dissertation
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    approved: Chad W

  • An Experimental Investigation of Interstitial Air Movement in Seasonal Snow

    Creator:
    Drake, Stephen A.
    Abstract:
    Atmospheric pressure changes do not stop at the permeable snow surface but rather propagate into it. These pressure changes range from high-amplitude, low-frequency events caused by seasonal cycles and synoptic weather systems to small-amplitude, high-frequency events caused by topographic features and turbulence. The effect of pressure changes on interstitial air...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Chad W. Higgins Atmospheric pressure changes do not stop at the permeable snow surface

  • Further Development of MPM and its Applications in Modeling Wood-Adhesive Bonds

    Creator:
    Hammerquist, Chad C.
    Abstract:
    This work is a culmination of a series of published works related to the use of the Material Point Method (MPM) in modeling wood adhesive bonds. The use of wood as construction material has the potential to play a small role in the solution to the current CO2 and climate...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Chad Hammerquist for the

  • On the study of WEC prototype advancement with consideration of real-time life extending control

    Creator:
    Stillinger, Chad J.
    Abstract:
    Renewable energy is a topic of significant interest and importance in the world today. Ocean wave energy, particularly in areas such as the Oregon Coast, has considerable potential as a renewable resource. However, to rightly evaluate the overall cost of energy for wave energy converters, survivability and maintenance issues must...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Chad