Index Catalog // ScholarsArchive@OSU

Weeds With a Purpose: Interseeding Cover Crops into Sweet Corn in Western Oregon

Creator:: Donaldson, Andrew R.
Abstract:: Cover crop establishment in late-season crops, like sweet corn, may be difficult due to the relatively short operational window following crop harvest. In regions like western Oregon, where fall-precipitation can occur when the crop is still in the field, cover crops may not be able to be planted, due to...
Resource Type:: Masters Thesis
Full Text:: members. Dr. Dan Sullivan gave me the opportunity to manage several and Dr. Scott Lukas, and my Graduate

Characterization of geohumus for use in turf

Creator:: Patton, Ty J.
Abstract:: Geohumus is a new, unique hybrid soil amendment made of polyacrylic acid, igneous rock flour, and quartz sand. It is biodegradable and is marketed to increase soil porosity, increase plant yield, and increase plant available water by up to 30%, all while using a low inclusion rate of only 1...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ty J. Patton for the degree of Master of Science in Horticulture

Comparison of baits for monitoring the spotted wing Drosophila, Drosophila suzukii

Creator:: Kleiber, Joseph R.
Abstract:: Spotted wing Drosophila (SWD), Drosophila suzukii (Diptera: Drosophilidae), is a pest of small and stone fruits that is widely distributed across much of the United States, Canada, Europe and Asia. Unlike other members of the Drosophilidae that only lay eggs in overripe or rotting fruit, SWD infest ripening and ripe...
Resource Type:: Masters Thesis
Full Text:: : Denny J. Bruck Spotted wing Drosophila (SWD), Drosophila suzukii (Diptera: Drosophilidae), is a pest

Creation of Hexaploid and Octaploid Zoysiagrass Using Colchicine and Breeding

Creator:: Schwartz, Brian M., Harris-Shultz, Karen R., Contreras, Ryan N., Hans, Christian S., and Jackson, Scott A.
Abstract:: Zoysiagrasses (Zoysia Willd.) are a slow-growing, tetraploid (2n = 4x = 40) turfgrass that can be successfully managed with less input than many other warm-season grasses. Despite extensive genetic and morphological variation, genotypes with the ability to recuperate quickly from damage are rare. Therefore, a long-term effort to increase vegetative...
Resource Type:: Article
Full Text:: , Christian S. Hans, and Scott A. Jackson aBSTRaCT Zoysiagrasses (Zoysia Willd.) are a slow-grow- ing

Investigating Alternative Irrigation Strategies and Sources for the Cool-Humid Willamette Valley

Creator:: Olsen, Conner J.
Abstract:: Rising human populations and climate change are putting increasing demands on our already-limited freshwater sources. In response to these concerns, homeowners and municipalities have been encouraged to replace turfgrass – a plant with relatively high irrigation needs – with drought-tolerant plants that do not require frequent irrigation. However, the many...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Conner J. Olsen for the degree of Master of Science in Horticulture presented

Impacts of crop level and vine vigor on vine balance and fruit composition in Oregon Pinot noir

Creator:: Vance, Amanda J.
Abstract:: Vineyard management strategies, including vineyard floor management and crop level management, can be used to influence vine vigor and fruit composition. Two studies were conducted to evaluate the impact of these practices on Pinot Noir in Oregon's Willamette Valley. Managing crop levels is common in cool climate vineyard production though...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Amanda J. Vance for the degree of Master of Science in Horticulture presented on May 16

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Creator:: Klick, Jimmy
Abstract:: Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies that in the past five years (2009-2014) invaded berry and stone fruit production regions in Europe and the Americas. Evolutionary adaptations, biological traits, and anthropogenic factors have contributed to its current status as a global pest. Females oviposit eggs into ripe...
Resource Type:: Dissertation
Full Text:: J. Bruck Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies

High-Density SNP Genotyping of Tomato (Solanum lycopersicum L.) Reveals Patterns of Genetic Variation Due to Breeding

Creator:: Sim, Sung-Chur, Van Deynze, Allen, Stoffel, Kevin, Douches, David S., Zarka, Daniel, Ganal, Martin W., Chetelat, Roger T., Hutton, Samuel F., Scott, John W., Gardner, Randolph G., Panthee, Dilip R., Mutschler, Martha, Myers, James R., and Francis, David M.
Abstract:: The effects of selection on genome variation were investigated and visualized in tomato using a high-density single nucleotide polymorphism (SNP) array. 7,720 SNPs were genotyped on a collection of 426 tomato accessions (410 inbreds and 16 hybrids) and over 97% of the markers were polymorphic in the entire collection. Principal...
Resource Type:: Article
Full Text:: , but does not appear to have been detected by Fst outlier analysis (Figure 3). The jointless gene (j

Water and Soil Management Practices to Enhance Plant Growth, Berry Development, and Fruit Quality of Northern Highbush Blueberry (Vaccinium corymbosum L.)

Creator:: Almutairi, Khalid F.
Abstract:: Drought and mandatory water restrictions are limiting the availability of irrigation water in many important blueberry growing regions and new strategies are needed to maintain yield and fruit quality with less water. Three potential options for reducing water use, including deficit irrigation, irrigation cut-offs, and crop thinning, were evaluated for...
Resource Type:: Dissertation
Full Text:: blueberry under drought conditions. Acta Hort. 537:273–278. Bailey, J. S. 1947. Development time from

Low Maintenance Strategies and Challenges within Oregon School Landscapes

Creator:: Gould, Micah A.
Abstract:: Ornamental landscapes require considerable amounts of inputs, including but not limited to irrigation, mowing or pruning, fertilization, and pest management. However, school systems have limited budgets, which reduce their access to resources and labor hours. Therefore, the objective of this project is to identify ground covers that can compete with...
Resource Type:: Masters Thesis
Full Text:: ‘Chantilly’ (68.1%) and F. Rubra ‘Longfellow’ (66%), then S. spurium (24%) and J. horizontalis (22.6

ScholarsArchive@OSU

Weeds With a Purpose: Interseeding Cover Crops into Sweet Corn in Western Oregon

Characterization of geohumus for use in turf

Comparison of baits for monitoring the spotted wing Drosophila, Drosophila suzukii

Creation of Hexaploid and Octaploid Zoysiagrass Using Colchicine and Breeding

Investigating Alternative Irrigation Strategies and Sources for the Cool-Humid Willamette Valley

Impacts of crop level and vine vigor on vine balance and fruit composition in Oregon Pinot noir

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

High-Density SNP Genotyping of Tomato (Solanum lycopersicum L.) Reveals Patterns of Genetic Variation Due to Breeding

Water and Soil Management Practices to Enhance Plant Growth, Berry Development, and Fruit Quality of Northern Highbush Blueberry (Vaccinium corymbosum L.)

Low Maintenance Strategies and Challenges within Oregon School Landscapes

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