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Response of Roughstalk Bluegrass (Poa trivialis L.) to Waterlogging Stress

Creator:: Liu, Mingyang
Abstract:: Roughstalk bluegrass (Poa trivialis L.) (RB) is a weed species that increased very quickly in grass seed production fields of the Willamette Valley. The invasion of RB in grass seed crops often occurs in waterlogged soils. In waterlogged areas, RB exhibited better competitiveness and had greater population densities than other...
Resource Type:: Dissertation
Full Text:: Science presented on October 27, 2016. Title: Response of Roughstalk Bluegrass (Poa trivialis L.) to

Expansion of scouringrush (Equisetum spp. L.) : crop interference and control options in winter wheat (Triticum aestivum L.) and chemical fallow cropping cropping systems

Creator:: Kerbs, Blake D.
Abstract:: Scouringrushes (Equisetum hyemale L.; E. xferrissii Clute; E. laevigatum L.) are ancient perennial seedless vascular plants historically associated with wetlands, low-lying roadsides or field margins with more plant available water. There has been little research conducted on scouringrush species in the context of agricultural production because traditional farming practices confined...
Resource Type:: Masters Thesis
Full Text:: on November 17, 2016 Title: EXPANSION OF SCOURINGRUSH (EQUISETUM SPP. L.): CROP INTERFERENCE AND

Effects of Biochar-Based Seed Coatings on Seed Germination and Seedling Vigor of California Brome (Bromus carinatus L.) and Blue Wildrye (Elymus glaucus L.)

Creator:: James, Matthew Scott
Abstract:: California brome and blue wildrye are important native grass species in the Pacific Northwest. However, both species have been reported to have low emergence under less than favorable field conditions. Seed coating is used to improve emergence and stand establishment of various crops. Three studies were carried out to determine...
Resource Type:: Masters Thesis
Full Text:: California Brome (Bromus carinatus L.) and Blue Wildrye (Elymus glaucus L.) Abstract approved

Exploring Soil-Landscape Relationships on the Pacific Slope of Monteverde, Costa Rica

Creator:: Hesson, Kevin M.
Abstract:: Landscape positions have been used to determine soil properties. My soil study in Monteverde on the Pacific slope of Costa Rica was designed to examine soil-landscape relationships for sites with various land use histories and management. Soil pits were dug at Nacimiento y Vida, Crandell, Curi-cancha, La Calandria, and Finca...
Resource Type:: Masters Thesis

Isolation and Pathogenicity of Naturally Occurring Entomopathogenic Fungi to Clover Root Borer (Coleoptera: Curculionidae: Scolytinae), a Pest of Red Clover Seed Crops

Creator:: Lestari, Anis S.
Abstract:: Entomopathogenic fungi are cosmopolitan microbial pathogens that cause fungous diseases in a wide range of insects via spore infection. Due to their natural enemy status, they have tremendous potential for use as microbial control agents against insect pests, especially subterranean pests for which few management options are available. The clover...
Resource Type:: Masters Thesis
Full Text:: (Hylastinus obscurus Marsham) develops belowground, attacks the roots of red clover (Trifolium pratense L

Suitability of diverse composts as soil amendments for highbush blueberry (Vaccinium corymbosum L.)

Creator:: Costello, Ryan C.
Abstract:: Highbush blueberry (Vaccinium corymbosum L.) is adapted to soils with high organic matter and acidic pH. Composts provide organic matter and nutrients for growing blueberry in mineral soils, but many composts are high in pH and soluble salts. Acidification with elemental sulfur (S°) can remedy high pH, but the process...
Resource Type:: Masters Thesis
Full Text:: : Suitability of Diverse Composts as Soil Amendments for Highbush Blueberry (Vaccinium corymbosum L

Spring nitrogen and cultivar effects on winter canola (Brassica napus L.) production in western Oregon

Creator:: Ferguson, Brock T.
Abstract:: Limited information is available on the effects of applied spring nitrogen (N) and cultivar on winter canola (Brassica napus L.) production in high-rainfall environments. The objectives of this investigation were: (i) to determine the effects of spring N and winter canola cultivars on seed and oil production characteristics, and (ii)...
Resource Type:: Masters Thesis
Full Text:: (Brassica napus L.) Production in Western Oregon AN ABSTRACT OF THE THESIS OF Brock T. Ferguson for

Applied nitrogen effects on yellow mustard (Sinapis alba L.) production in the Willamette Valley

Creator:: DuVal, Alyssa Susan
Abstract:: Nitrogen management recommendations for yellow mustard (Sinapis alba L.) production in the high rainfall environment of Oregon's Willamette Valley (WV) are not available. The objectives of this investigation were: (i) to determine the effect of applied nitrogen (N) on seed yield and yield components in yellow mustard, and (ii) to...
Resource Type:: Masters Thesis
Full Text:: Applied Nitrogen Effects on Yellow Mustard (Sinapis alba L

Predicting Offspring Performance in Hop (Humulus lupulus L.) Using AFLP Markers

Creator:: Henning, J. H., Townsend, M. S., and Matthews, P.
Abstract:: Genetic information for male and female hop accessions is limited, hampering parental selection to maximize offspring productivity. Our objective was to determine whether amplified fragment length polymorphism (AFLP)-derived genetic distance (GD[subscript mm]) estimates and coancestry estimates from pedigrees (GS[subscript ped]) between parental pairs could be used to predict offspring performance....
Resource Type:: Article
Full Text:: AFLP markers in pepper. Plant Breed. 123:467-473, 2004. 8. Hale, A. L., Farnham, M. W., and Menz, M

Perennial Ryegrass (Lolium perenne L.) Cultivar Response to a Postemergence Application of Mesotrione

Creator:: Hinds-Cook, Barbara J.
Abstract:: Perennial ryegrass (Lolium perenne L.) is a widely grown cool season, bunch type, short lived perennial grass that is native to Europe, Asia, and North Africa, but has been adapted globally. Perennial ryegrass is quick to establish, has a long growing season, and produces high seed yield and forage or...
Resource Type:: Masters Thesis
Full Text:: : Perennial Ryegrass (Lolium perenne L.) Cultivar Response to a Postemergence Application of Mesotrione

ScholarsArchive@OSU

Response of Roughstalk Bluegrass (Poa trivialis L.) to Waterlogging Stress

Expansion of scouringrush (Equisetum spp. L.) : crop interference and control options in winter wheat (Triticum aestivum L.) and chemical fallow cropping cropping systems

Effects of Biochar-Based Seed Coatings on Seed Germination and Seedling Vigor of California Brome (Bromus carinatus L.) and Blue Wildrye (Elymus glaucus L.)

Exploring Soil-Landscape Relationships on the Pacific Slope of Monteverde, Costa Rica

Isolation and Pathogenicity of Naturally Occurring Entomopathogenic Fungi to Clover Root Borer (Coleoptera: Curculionidae: Scolytinae), a Pest of Red Clover Seed Crops

Suitability of diverse composts as soil amendments for highbush blueberry (Vaccinium corymbosum L.)

Spring nitrogen and cultivar effects on winter canola (Brassica napus L.) production in western Oregon

Applied nitrogen effects on yellow mustard (Sinapis alba L.) production in the Willamette Valley

Predicting Offspring Performance in Hop (Humulus lupulus L.) Using AFLP Markers

Perennial Ryegrass (Lolium perenne L.) Cultivar Response to a Postemergence Application of Mesotrione

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