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Filtering by: Creator Bredeweg, Erin L. Remove constraint Creator: Bredeweg, Erin L. Degree Field Botany and Plant Pathology Remove constraint Degree Field: Botany and Plant Pathology Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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An evaluation of the invasion potential of Kochia prostrata (forage kochia) in southwestern Idaho, USA

Creator:

Gray, Erin C.

Abstract:

Purposeful introductions of exotic species for rehabilitation efforts following wildfire are common on rangelands in the western U.S., though potential ecological impacts of introduced species in novel environments are often poorly understood. One such introduced species, Kochia prostrata (L.) Schrad (forage kochia) has been seeded on over 200,000 ha throughout...

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Erin C. Gray for the degree of
Lichen response to the environment and forest structure in the western Cascades of Oregon

Creator:

Martin, Erin P.

Abstract:

Lichens are an important part of the biota in western Oregon forests, where they perform valuable ecological roles and contribute significantly to biodiversity. Lichens in western Oregon are threatened by a number of factors including air pollution and land use practices. If we wish to maintain the persistence of lichens...

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE DISSERTATION OF Erin P. Martin for the
The effects of DMSO on wound periderm formation in potato tuber tissue

Creator:

Davidson, Roy M., 1939-

Abstract:

A study was conducted to determine the influence of DMSO (dimethyl sulfoxide) on suberization and wound periderm formation in cut potato tuber tissue, and to determine the effectiveness of DMSO as a potato seedpiece treatment for prevention of seedpiece decay in the field. The influences of tuber storage conditions, varieties,...

Resource Type:

Masters Thesis

Full Text:

PERIDERM FORMATION IN POTATO TUBER TISSUE Abstract approved: Redacted for Privacy D. Robert L
Sweet corn decline syndrome in Oregon's Willamette Valley

Creator:

Hoinacki, Elisabeth V.

Abstract:

For the past several years vegetable growers in Oregon's Willamette Valley have experienced reduced yields in their sweet corn plantings. We conducted studies to 1) describe the symptomology and etiology of the disease, 2) test a root rot rating system we developed to evaluate factors in the disease syndrome, and...

Resource Type:

Dissertation

Full Text:

Decline Syndrome in Oregon's Willamette Valley Abstract approved: Mary L. Powelson For the past several
Seedborne Phytophthora infestans : effect of pathogen clonal lineage and potato cultivar on seed transmission of late blight and plant growth responses

Creator:

Partipilo, Heather M.

Abstract:

Seed piece to plant transmission of the potato late blight pathogen, Phytophthora infestans, occurred with isolates of the clonal lineages US-8 in Oregon and US-11 in Washington in field trials. Average transmission rate across potato cultivars was 0.5 and 2.4% with US-8, and 0.8 and 1.0% with US-11 in 1999...

Resource Type:

Masters Thesis

Full Text:

Johnson, Dr. Fred Ramsey, Cliff Pereira, Beth Hoinacki, Ingrid Berlanger, Justin Misner, Tim Nam, Erin
Riparian lichens of northern Idaho

Creator:

Hutchinson, Jenifer L.

Abstract:

Riparian forests in the Idaho Panhandle, north of Whitebird, were surveyed for rare riparian lichen species. The region was stratified into nine geographic units and by stream size. Eighty-one plots were surveyed for lichen community, stand and river characteristics. Variables important to lichen community composition included regional differences, elevation, climatic...

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Jenifer L. Flutchinson for the
Factors affecting establishment and germination of upland prairie species of conservation concern in the Willamette Valley, Oregon

Creator:

Jones, Katherine D.

Abstract:

Identifying mechanisms that determine who lives and dies is the first step in developing successful restoration techniques for rare species and endangered habitats. We studied interactions that affect establishment of native plant forbs of conservation concern at the seedling stage to support the theoretical basis for restoration activities in Pacific...

Resource Type:

Masters Thesis

Full Text:

competition. In particular, litter appeared to have a positive effect on seedling establishment of L
Studies on the centromere-specific histone, CenH3, of Neurospora crassa and related ascomycetes

Creator:

Phatale, Pallavi A.

Abstract:

In eukaryotes, the defined loci on each chromosome, the centromeres, accomplish the critical task of correct cell division. In some organisms, centromeres are composed of a euchromatic central core region embedded in a stretch of heterochromatin and the inheritance and maintenance of centromeres are controlled by dynamic epigenetic phenomena. Although...

Resource Type:

Dissertation

Full Text:

Jonathan Galazka and my peer graduate students Erin Bredeweg, Kyle Pomraning and Steven Friedman. Most
Bioindication of air quality in forests of northern and central California using epiphytic macrolichen communities

Creator:

Jovan, Sarah

Abstract:

The unifying purpose of this dissertation was to describe, model, and map relationships between epiphvtic macrolichen communities and air quality in Ibrests of northern and central California. First, multivariate analyses were used to subdivide the large study area into three model areas with similar climate, topography, and lichen communities: the...

Resource Type:

Dissertation

Full Text:

. insight, and friendship, including Erin Martin, Emily I-Jolt. Jonathan ihompson. 'lom Carlberg. Chiska
Ecology of benthic microalgae of estuarine intertidal sediments

Creator:

Riznyk, Raymond Zenon

Abstract:

The benthic microalgae of sediments of the two tidal flats in Yaquina Bay, Oregon were investigated to determine the environmental factors limiting the abundance and the horizontal and vertical distribution of these organisms. The Southbeach tidal flat which is under the marine realm of deposition consists of fine to medium...

Resource Type:

Dissertation

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Academic Affiliation

Botany and Plant Pathology20

Advisor

Mccune, Bruce4
Kaye, Thomas N.2
Meinke, Robert J.2
Powelson, Mary L.2
Freitag, Michael1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1967 to 2018

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Committee Member

Ganio, Lisa2
Muir, Pat2
Muir, Patricia2
Ohmann, Janet2
Pyke, Dave2
more Committee Members »

Creator

Amsberry, Kelly1
Berryman, Shanti D.1
Currin, Rebecca E.1
Davidson, Roy M., 1939 1
Esterson, Andrew1
more Creators »

Date

Date range begin – Date range end

Current results range from 1967 to 2017

View distribution

Decade

2010-20198
2000-20099
1980-19891
1960-19692

Degree Field

Botany and Plant Pathology[remove]20

Degree Level

Master's13
Doctoral7

Degree Name

Master of Science (M.S.)13
Doctor of Philosophy (Ph.D.)7

File Format

application/pdf1

Language

English [eng]20

License

All rights reserved13

Non-Academic Affiliation

Oregon State University. Graduate School[remove]20

Peer Reviewed

No16

Resource Type

Masters Thesis13
Dissertation7

Rights Statement

In Copyright15
Copyright Not Evaluated5

Subject

Air -- Pollution -- California -- Measurement1
Algae -- Oregon -- Yaquina Bay1
Ascomycetes -- Phylogeny -- Molecular aspects1
Asteraceae -- Climatic factors -- Oregon -- Baker county1
Asteraceae -- Effect of global warming on -- Oregon -- Baker county1
more Subjects »

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