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Filtering by: Creator Simko, B. C. (Ben C.) Remove constraint Creator: Simko, B. C. (Ben C.) Location Willamette Valley, Oregon, United States, (Hypsographic) Remove constraint Location: Willamette Valley, Oregon, United States, (Hypsographic)

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Diagnosis and Etiology of a Soilborne Disease Complex of Winter Squash (Cucurbita maxima) in the Willamette Valley, OR

Creator:

Rivedal, Hannah M.

Abstract:

Winter squash (Cucurbita maxima) grown in Oregon’s Willamette Valley for edible seed, frozen foods, and fresh markets is susceptible to an undiagnosed soilborne disease. Diseased squash fields exhibit symptoms of stunting, root and crown rot, vascular discoloration, and late-season wilt, which in extreme cases can lead to total crop failure....

Resource Type:

Dissertation

Full Text:

, B) crown, and C) roots of diseased cucurbit plants. Scale ranges from: ‘1’- no yellowing
Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:

Kral, George L.

Abstract:

The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...

Resource Type:

Dissertation

Full Text:

; b.) cpDNA with indels removed; and c) coded indels plus cpDNA
White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Creator:

Viste-Sparkman, Karen

Abstract:

Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...

Resource Type:

Masters Thesis

Full Text:

Boyer of Heritage Seedlings, Jim Kruetzbender, Dennis Lundeen, Ben Magill, Zora Ann McClintock
The Willamette Valley choices for the future

Creator:

Lawrence Halprin & Associates

Abstract:

This book is an environmental primer for the people of the Willamette Valley. It sets forth basic principles showing how men's actions cause future consequences in the environment.

Resource Type:

Book

Full Text:

in s 11 sec tors . .Sprawl and uncoordinated use of land limi c open space op- porturu, cies and

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Academic Affiliation

Botany and Plant Pathology2
Fisheries and Wildlife1

Advisor

Johnson, Kenneth B.1
Liston, Aaron I.1
Schmitz, Richard A.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2006 to 2022

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Unknown 1

Committee Member

Brooks, Raymond1
Cronn, Richard C.1
Gitelman, Alix1
Jones, Frank A.1
Kling, Jennifer G.1
more Committee Members »

Creator

Kral, George L.1
Lawrence Halprin & Associates1
Rivedal, Hannah M.1
Viste Sparkman, Karen1

Contributor

Cronn, Richard C.1
Dibello, Patrick L.1
Dupen, Elena N.1
Finch, Kristen N.1
Gonda, Kathryn F.1
more Contributors »

Date

Date range begin – Date range end

Current results range from 1972 to 2021

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Decade

2020-20291
2010-20191
2000-20091
1970-19791

Degree Field

Botany and Plant Pathology2
Wildlife Science1

Degree Level

Doctoral2
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)2
Master of Science (M.S.)1

File Format

application/pdf2

Language

English [eng]4

License

All rights reserved3

Location

Willamette Valley, Oregon, United States, (Hypsographic)[remove]4

Non-Academic Affiliation

Oregon Explorer1
Oregon State University. Graduate School1

Peer Reviewed

No3

Resource Type

Dissertation2
Book1
Masters Thesis1

Rights Statement

In Copyright3
Copyright Not Evaluated1

Subject

Plant-pathogen relationships1
Squashes -- Diseases and pests1
White-breasted nuthatch -- Ecology -- Oregon -- Willamette River Valley1
White-breasted nuthatch -- Effect of habitat modification on -- Oregon -- Willamette River Valley1
White-breasted nuthatch -- Habitat -- Oregon -- Willamette River Valley1

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