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Filtering by: Has journal Crop Science Remove constraint Has journal: Crop Science Committee Member Parke, Jennifer Remove constraint Committee Member: Parke, Jennifer Degree Field Horticulture Remove constraint Degree Field: Horticulture

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  • Nutrient Profile and Nursery Feeding Damage of Halyomorpha halys (Hempitera: Pentatomidae)

    Creator:
    Skillman, Victoria P.
    Abstract:
    Halyomorpha halys Stål, brown marmorated stink bug or BMSB, is now present in 43 US states. A native of eastern Asia, this pest can feed on ~200 different plant species damaging bark, leaves, buds, stems, and fruits. Many of these plant species include wild plants, ornamentals, and agricultural crops. BMSB...
    Resource Type:
    Masters Thesis
    Full Text:
            AN ABSTRACT OF THE THESIS OF Victoria P. Skillman for the degree of Master of Science in

  • A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

    Creator:
    Nelson, Michael, II
    Abstract:
    Urban agriculture (UA) is defined as the production of food crops or livestock within urban areas. Despite its popularity in the United States, research into UA systems suffers from a general underrepresentation of commercial urban systems. As a result, urban growers often have unique technological needs that are unmet by...
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS OF Michael Nelson II for the degree of Master of Science in Horticulture presented on May 31

  • Effects of Pesticide Exposure on Honey Bee Health : Impacts of Pesticide Interactions and Exposure Through Multiple Routes

    Creator:
    Parreira, Stephanie
    Abstract:
    Honey bees (Apis mellifera) are responsible for approximately $17 billion in crop production per year in the United States, and are arguably the most important pollinators in the nation. The future of crop pollination and production is threatened by widespread national honey bee colony losses, which have averaged approximately 30%...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Stephanie Parreira for the degree of Master of Science in

  • Development and use of molecular tools in Fragaria

    Creator:
    Njuguna, Wambui
    Abstract:
    This dissertation describes the application and development of molecular tools that have great potential for use in studying variation in strawberry germplasm. The first study evaluated 91 microsatellite (simple sequence repeat, SSR) markers for transferability in 22 Fragaria species and their utility in fingerprinting octoploid strawberries. Out of the transferable...
    Resource Type:
    Dissertation
    Full Text:
    crop even under indifferent care. Thirty-four varieties are listed by Hancock (1999) as the major F

  • Plant hormone-induced defense responses against Botrytis cinerea

    Creator:
    Akagi, Aya
    Abstract:
    Several plant hormones, including ethylene and jasmonates, are known to mediate responses against biotic and abiotic stress. The first and second objectives of this thesis were (i) to elucidate the role of ethylene in defense responses against Botrytis cinerea and specifically (ii) to determine the potential contribution of ethylene response...
    Resource Type:
    Dissertation
    Full Text:
    modern societies. Efficient and stable crop production is necessary to confront the increase in human

  • Phylogenetic Estimation and Ancestral State Reconstruction of Rubus (Rosaceae) using Target Capture Sequencing

    Creator:
    Carter, Katherine A.
    Abstract:
    Hybridization, polyploidy, and apomixis have made phylogenetic estimation in Rubus challenging. I used target capture to sequence approximately 1000 low copy nuclear loci and the chloroplast genome for 94 accessions representing the genus Rubus and distributed worldwide. Species phylogenies were estimated using two coalescent based methods, ASTRAL-II and SVDQuartets, and...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Katherine Armes Carter for the degree of Master of Science in

  • Colony Level Infection of Honey Bee Gut Pathogen, Nosema ceranae and Role of Pollen Nutrition in Nosema ceranae Infection and Bee Survival

    Creator:
    Jack, Cameron
    Abstract:
    Honey bees are important pollinators for many agricultural systems throughout the world. However, recent honey bee declines have caused great alarm, drawing attention to the vulnerability of worldwide agriculture to pollinator loss. These declines are often attributed to a combination of pests, pathogens, viruses, chemicals, and a lack of proper...
    Resource Type:
    Masters Thesis
    Full Text:
    OF THE THESIS OF Cameron Jack for the degree of Master of Science in Horticulture presented on

  • Breeding and genetics of lilacs and hardy hibiscus

    Creator:
    Lattier, Jason D.
    Abstract:
    Lilacs are a group of ornamental trees and shrubs in the Oleaceae family consisting of 22 to 30 species. There are six series within genus Syringa: Pubescentes, Villosae, Ligustrae, Ligustrina, Pinnatifoliae, and Syringa. Fertility and cross-compatibility among cultivars, species, and series have yet to be formally investigated. Over three years,...
    Resource Type:
    Dissertation