Index Catalog // ScholarsArchive@OSU

Mining Landsat Time-series Imagery to Understand Spatiotemporal Dynamics of the Urban Landscape: A Perspective from Local Climate Zone Mapping

Creator:: Xu, Chunxue
Abstract:: We live on an Urban Planet. The current unprecedented urbanization is accompanied by intensive land cover transition and demographic shifts from rural to urban livelihoods. Cities serve as cultural, economic, political centers that facilitate wealth creation and innovation of the society, sustaining human from multi-dimensions with large ecological footprints far...
Resource Type:: Dissertation
Full Text:: : Mining Landsat Time-series Imagery to Understand Spatiotemporal Dynamics of the Urban Landscape: A

Continued exploration of barley genotype contribution to beer flavor and the application of this knowledge to variety development and release

Creator:: Morrissy, Campbell P.
Abstract:: Investigation on barley genotype contribution to beer flavor is a relatively new area of research but has interest from members of the malting barley supply chain. This body of work builds upon previous studies by approaching it from new angles that further supports the malting and brewing industries’ interests around...
Resource Type:: Dissertation
Full Text:: Crop Science presented on April 13, 2023. Title: Continued Exploration of Barley Genotype

Identifying Quantitative Trait Loci for Resistance Against Stripe Rust and Septoria tritici blotch in Soft White Winter Wheat

Creator:: Cobertera, David
Abstract:: Stripe rust (Puccinia striiformis f. sp. tritici) and Septoria tritici blotch (Zymoseptoria tritici) are a constant and significant threat to wheat production, significantly reducing wheat quality and yield. Wheat is responsible for 20% of the world’s human calorie intake, and wheat production must increase to supply the demand of the...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Crop Science presented on July 29, 2021. Title

Topometric Analysis for High-throughput Phenotyping of Seed Shattering in Perennial Ryegrass (Lolium perenne L.)

Creator:: Tubbs, Travis B.
Abstract:: Seed shattering is a constraint to improvement of seed yield in Lolium perenne L. and as a result, seed retention is an essential trait for this valuable crop. Field studies were conducted near Corvallis, OR in two years (2017-2018 and 2018-2019) to identify genetic variation for seed retention and to...
Resource Type:: Dissertation
Full Text:: . Tubbs for the degree of Doctor of Philosophy in Crop Science presented on July 8, 2021. Title

Seed Development in Orchardgrass (Dactylis glomerata L.) in Relation to Plant Growth Regulators and Spring Nitrogen

Creator:: Morad, Mohammed M.
Abstract:: Orchardgrass (Dactylis glomerata L.) is an important seed crop, but unlike other cool-season perennial grass seed crops such as perennial ryegrass (Lolium perenne L.) and tall fescue [Schedonorus arundinaceus (Schreb.) Dumort.], seed yields have not increased over time so there is considerable room for improvement. Research suggests that plant growth...
Resource Type:: Dissertation
Full Text:: spacings (0.3 m) produce lower seed yields than wide rows. No seed crop is harvested in the year of

Evaluating the Attractiveness of Pacific Northwest Native Plants to Insects and Gardeners

Creator:: Anderson, Aaron G.
Abstract:: Due to a growing body of literature documenting declines in pollinator populations, there has been increased public interest in pollinator conservation. In urban and suburban landscapes, many gardeners and urban land managers are interested in gardening for pollinators, particularly bees. Simultaneously, many homeowners and municipalities are interested in other aspects...
Resource Type:: Dissertation
Full Text:: Northwest, there have been no empirical studies on the most attractive plants to bees. Better

Impact of Dairy Manure Digestate on Microbial Activities in Soil

Creator:: Waggoner, Ashley L
Abstract:: Amendments and fertilizers applied to optimize crop production and improve soil health also supply inputs of soil organic matter (SOM) and nutrients that affect soil microorganisms. In the dairy-intensive Pacific Northwest, dairy manure is stored as slurry mixtures until conditions are appropriate for soil application. During storage, the manure begins...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ David D. Myrold Anne E. Taylor Amendments and fertilizers applied to optimize crop

Detrital Influences on Soil Carbon Stabilization in Wet Temperate Forest Soils

Creator:: Pierson, Derek N.
Abstract:: Soils, with their potential to store and stabilize carbon (C), are an essential resource for sustaining forest productivity, as well as for efforts to reduce atmospheric C concentrations. Protecting existing soil C and harnessing the sequestration potential of our soils require an improved understanding of the processes through which soil...
Resource Type:: Dissertation
Full Text:: , while the separate, equal magnitude addition of higher quality (low C:N) needle litter had no

The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

Creator:: Rooney, Erin C.
Abstract:: Arctic warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil biogeochemistry and physical structure. To investigate the impact of permafrost exposure to freeze-thaw, soil response was tested across three scales: 2.5 cm³ aggregates, a forested hillslope, and two sites at contrasting latitudes. XCT imaging...
Resource Type:: Dissertation
Full Text:: Major Professor, representing Soil Science Head of the Department of Crop and Soil

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

Creator:: Dalton, Daniel T.
Abstract:: Grapevine red blotch virus (GRBV), the causal agent of red blotch disease (RBD) in grapevine, Vitis vinifera L., is an emerging pathogen of significance to the wine grape industry of Oregon, USA. To address knowledge gaps of GRBV epidemiology, spread of GRBV was evaluated in Oregon vineyards over four years....
Resource Type:: Dissertation
Full Text:: . albidosparsus. Immature St. basalis were additionally used. No evidence of GRBV transmission was found using

ScholarsArchive@OSU

Mining Landsat Time-series Imagery to Understand Spatiotemporal Dynamics of the Urban Landscape: A Perspective from Local Climate Zone Mapping

Continued exploration of barley genotype contribution to beer flavor and the application of this knowledge to variety development and release

Identifying Quantitative Trait Loci for Resistance Against Stripe Rust and Septoria tritici blotch in Soft White Winter Wheat

Topometric Analysis for High-throughput Phenotyping of Seed Shattering in Perennial Ryegrass (Lolium perenne L.)

Seed Development in Orchardgrass (Dactylis glomerata L.) in Relation to Plant Growth Regulators and Spring Nitrogen

Evaluating the Attractiveness of Pacific Northwest Native Plants to Insects and Gardeners

Impact of Dairy Manure Digestate on Microbial Activities in Soil

Detrital Influences on Soil Carbon Stabilization in Wet Temperate Forest Soils

The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

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