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Filtering by: Creator Slotta, Larry S. Remove constraint Creator: Slotta, Larry S. Committee Member Lev, Larry Remove constraint Committee Member: Lev, Larry

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  • Integrating real-time weather data with dynamic crop development models

    Creator:
    Donaldson, William S.
    Abstract:
    Crop development models are commonly used in research. However, their use as crop management tools for growers is rare. Decision support systems (DSS), which combine crop models with expert systems, are being developed to provide management assistance to growers. Researchers at Oregon State University are in the process of developing...
    Resource Type:
    Masters Thesis
    Full Text:
    development models AN ABSTRACT OF THE THESIS OF William S. Donaldson for the degree of Master of Science

  • Effect of weather variation on economic results from grasshopper control tactics in Chad : a partial validation of GHLSIM

    Creator:
    Sheikh, Allah Ditta
    Abstract:
    Agricultural production in the Sahelian region of Africa is among the lowest in the world. Cyclical infestations of locusts and grasshoppers have contributed to this low productivity. The infestations appear to be triggered by heavy rainfall at the beginning of a crop season after extended drought. Because locusts and grasshoppers...
    Resource Type:
    Masters Thesis
    Full Text:
    Validation of GHLSIM Abstract approved Frank S. Conklin Agricultural production in the Sahelian region of

  • A Systematic Literature Review of Food Desert Interventions

    Creator:
    Rumbaugh, Sara
    Abstract:
    This study investigates whether existing interventions in USDA-defined food deserts have been effective in improving access to healthy foods and improving dietary quality. A systematic literature review was conducted using articles from MEDLINE database using “food desert” and “intervention” as search terms. Exclusion and inclusion criteria resulted in selection of...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Larry Lev, Committee Member, representing Applied Economics

  • Evaluation of the 2001 pilot Oregon Senior Farmers' Market Nutrition Program

    Creator:
    Saylor, Kirsten N.
    Abstract:
    The Senior Farmers' Market Nutrition Program (SFMNP), piloted in Oregon in 2001, provided $100 worth of vouchers (aka coupons) to low-income seniors to buy fresh local produce from farmers at farmers' markets and roadside stands. Presented in a political ecology framework, this research integrated the perspectives of beneficiaries and their...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on November 19, 2003 APPROVED: Chair of Depthtment of Anthropolbgy Dean of Graduate S I

  • Impact of price and color availability on fair trade and organic apparel choice

    Creator:
    Hodgin, Elizabeth Dee
    Abstract:
    Working conditions in the international garment industry have long been a concern and a process to assess and certify fair trade practices was developed as a means by which to improve those conditions. Standards for fair trade apparel include safe working conditions, fair wages, compliance with laws, and reduced environmental...
    Resource Type:
    Masters Thesis
    Full Text:
    and Dr. Larry Lev for their valuable comments and suggestions. I also want to extend a special

  • Predisposing attributes affecting locational preferences upon retirement : a prospective view

    Creator:
    Mileham, Colleen K.
    Abstract:
    This research investigated the relationship of predisposing attributes of preretirees to the perceived importance of locational preferences during the first ten years of retirement. Multiple regression analyses and a Chi-square test were used to determine if seven predisposing attributes were related to ten locational preferences. Data were analyzed from a...
    Resource Type:
    Dissertation
    Full Text:
    who take the time to observe their style. Thanks to Dr. Alice Mills Morrow and Dr. Larry Lev who were

  • Spatial distribution and the probability of occurrence of beluga whales (Delphinapterus leucas) in Alaskan Arctic

    Creator:
    Romeo, Lucy F.
    Abstract:
    The known distribution of beluga whales ranges from sub-Arctic to Arctic waters where they migrate in pods in response to environmental factors such as the presence of sea ice and prey. This study uses bivariate and multivariate analysis techniques to measure how environmental covariates are associated with the spatial-temporal distribution...
    Resource Type:
    Masters Thesis
    Full Text:
    , Julia Jones, James Graham, Mary Santelmann, Ari Friedlaender, and Larry Lev, for their direction and

  • Ectopic overexpression of Arabidopsis CBF genes enhances freezing tolerance of two potato species

    Creator:
    Pino, María-Teresa
    Abstract:
    Solanum species differ in their degree of frost tolerance and cold acclimation capacity. Cultivated potato species of Solanum tuberosum L. are frost-sensitive, incapable of cold acclimation, and have a maximum freezing tolerance of –3°C. Solanum commersonii Dun is frost-tolerant and can survive to –5ºC pre-acclimation and –10ºC post-acclimation. Breeding attempts...
    Resource Type:
    Dissertation
    Full Text:
    acclimation capacity have been largely unsuccessful in S. tuberosum. Arabidopsis CBF genes encode cold

  • Breeding Snap Beans for Organic Agriculture: Genomic Shifts under Different Agricultural Management Systems

    Creator:
    King, Ryan M.
    Abstract:
    Although the concept of breeding crops for organic agricultural systems has been around for decades, few studies have been reported for vegetable crops to quantify and compare how conventional and organic systems differ in their selection pressures on genotypes advancing through the breeding cycle; especially research utilizing modern sequencing capabilities....
    Resource Type:
    Masters Thesis
    Full Text:
    1970’s in response to the industrialization of agriculture, the practices and principles it utilizes

  • Food deserts in the Willamette : a study of food access in Lane County, Oregon

    Creator:
    Smith, Dianna Marie
    Abstract:
    According to USDA research, Oregon in 2002 had the highest rate of hunger and one of the highest rates of food insecurity in the United States. Although the margin of error involved with these statistics indicates that the state may not actually be at the top of the list, a...
    Resource Type:
    Masters Thesis
    Full Text:
    advisor. Laurence Becker, Garry Stephenson, and Larry Lev have all contributed wonderful comments and