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Filtering by: Creator Williams, John Harvey, 1864- Remove constraint Creator: Williams, John Harvey, 1864- Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated

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Effect of kraft mill effluent on structure and function of periphyton communities

Creator:

Williams, Harvey Dean

Abstract:

Raw and biologically stabilized Kraft mill effluents were introduced into laboratory artificial streams at a ratio of 15 ml per liter of water over a two year period. Effluent from the stabilization pond of a second mill was introduced at concentrations of from 5 to 40 ml per liter of...

Resource Type:

Dissertation

Full Text:

of periphyton communities AN ABSTRACT OF THE THESIS OF HARVEY DEAN WILLIAMS for the (Name of
Succession and certain adaptive features of plants native to the sand dunes of the Oregon coast

Creator:

Kumler, Marion Lawrence, 1941-

Abstract:

The vegetation of the Oregon coast is characterized by a variety of stages of plant succession which are repeated widely throughout the sand dune area. During the years from 1960 to 1963 the gradation of upland sand dune succession was studied on 48 plots within a 150 mile section of...

Resource Type:

Dissertation

Full Text:

this thesis is very diffi- cult. Dr. William W. Chilcote was the one who first stimulated an
Ecotypic adaptation of Setaria lutescens (Weigel) F. T. Hubbard to alfalfa culture in California

Creator:

Schoner, Carl Arnold

Abstract:

Setaria lutescens (yellow foxtail) plants, grown from five seed sources were compared in California. Seed sources were: Connecticut, Iowa, Massachusetts, Pennsylvania and California. Morphological and physiological differences between biotypes include: plant size, growth habit, time required to mature and reproductive capa city. Most significant is the prostrate habit of the...

Resource Type:

Dissertation

Full Text:

. William Harvey, a University of California Agricultural Extension Service Specialist. 5 Unsuccessful
Plant communities and succession in Oregon coastal salt marshes

Creator:

Jefferson, Carol A.

Abstract:

The purpose of this study was to determine plant species composition, community structure, successional relationships, vegetational development and plant distributions in estuarine salt marshes on the Pacific Coast of Oregon. Quadrat and transect samples of plant presence and cover, collected from April 1971 - June 1974, were subjected to phytosociological...

Resource Type:

Dissertation

Full Text:

approved byf~t%;r William W. Chilcote r The purpose of this study was to determine plant species com
Phenotypic variation in diploid and tetraploid populations of Claytonia perfoliata (s.l.) (Portulacaceae)

Creator:

Miller, John M.

Abstract:

Meiotic chromosome counts from 200 populations of Claytonia (Montia) perfoliata (sensu lato) reveal a polyploid pillar complex based on three morphologically different, chemically distinct, and geographically defined diploids. The basic chromosome number is x=6. Diploid C. perfoliata Willdenow with linear juvenile leaves and deltoid mature basal leaves ranges southeastward from...

Resource Type:

Dissertation

Full Text:

populations of Claytonia perfoliata (s.l.) (Portulacaceae) AN ABSTRACT OF THE THESIS OF John Michael Miller
Vegetation and fire history of a Ponderosa pine-white fir forest in Crater Lake National Park

Creator:

McNeil, Robert Curlan

Resource Type:

Masters Thesis

Full Text:

substances (Hartesvedt and Harvey 1968). Fire can also indirectly change vegetation through its effects on
Distribution of Acremonium coenophialum in developing seedlings and inflorescences of Festuca arundinacea

Creator:

Cook, Kathy L.

Abstract:

Acremonium coenophialum is an endophytic fungus which infects the reproductive and vegetative tissue of tall fescue. Interest in this fungus was sparked by research which linked its presence in tall fescue with reduced weight gains and alkaloid-like poisoning in cattle. Incomplete information was available on the endophyte's life or disease...

Resource Type:

Masters Thesis

Full Text:

average daily gains for cattle and the level of endophyte infection (Williams 3 et al., 1984
The mycorrhizal associations of western hemlock

Creator:

Kropp, Bradley Ray

Abstract:

Two objectives of this research were to identify fungi which are mycorrhizal with western hemlock and to examine the ecology of hemlock mycorrhizal fungi indigenous to outplanting sites. Another objective was to evaluate the effectiveness of mycorrhizal inoculation in improving the performance of outplanted hemlock seedlings. A list of over...

Resource Type:

Dissertation

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their facilities. I would like to thank John Hazard and Pat Williams of the U. S. Forest Service
Impacts of ponderosa pine forest restoration treatments on the ectomycorrhizal fungal community and fine root biomass in the Blue Mountains of Oregon

Creator:

Smith, Jane E. (Jane Elizabeth)

Abstract:

Before the arrival of Euro-Americans, the inland Pacific Northwest was settled by native people whose frequent intentional burning of the landscape promoted open stands dominated by large fire-resistant ponderosa pine. Fire suppression for nearly a century, livestock grazing, and logging of the largest trees has resulted in forests characterized by...

Resource Type:

Dissertation

Full Text:

to make this dissertation possible: My husband, John Bacon, helped me to maintain perspective and
Pathological and ecological aspects of decline and mortality of Chamaecyparis nootkatensis in southeast Alaska

Creator:

Hennon, Paul Edward

Abstract:

Alaska-cedar (Chamaecvparis nootkatensIs (D. Don) Spach) is a valuable tree that is suffering from a serious decline and mortality of unknown cause throughout southeast Alaska. Epidemiological and pathological studies were initiated to determine if a pathogen is the primary cause of this problem. By examining old aerial photographs and by...

Resource Type:

Dissertation

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nematodes; Al Funk for identifying several fungi; and John Shoen for providing information on bears. I also

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Academic Affiliation

Botany and Plant Pathology[remove]20

Advisor

Chilcote, W. W.3
Chilcote, William W.3
Chambers, Kenton L.2
Hansen, Everett M.2
Phinney, Harry K.2
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1963 to 2005

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Unknown 1

Committee Member

Chambers, Kenton1
Copes, Don1
Cromack, Kermit Jr1
Edge, Dan1
Filip, Greg1
more Committee Members »

Creator

Bailey, Warren Hutchinson, 1914 1
Cook, Kathy L.1
Evans, Katherine J.1
Fuller, Lloyd Randolph1
Gomez, Don R.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1963 to 2013

View distribution

Decade

2010-20191
2000-20092
1990-19991
1980-19893
1970-19796
1960-19697

Degree Field

Botany and Plant Pathology12
Botany7

Degree Level

Doctoral16
Master's3

Degree Name

Doctor of Philosophy (Ph.D.)16
Master of Science (M.S.)3

File Format

application/pdf1

Language

English [eng]20

Non-Academic Affiliation

Oregon State University. Graduate School19

Peer Reviewed

No18
Yes1

Resource Type

Dissertation16
Masters Thesis3
Article1

Rights Statement

Copyright Not Evaluated[remove]20

Subject

Plant ecology2
Acclimatization (Plants)1
Acremonium1
Aquatic animals -- Effect of water pollution on1
Cedar -- Alaska1
more Subjects »

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