Index Catalog // ScholarsArchive@OSU

The Oregon wine industry : an economic analysis

Creator:: Buerkin, Kurt
Resource Type:: Masters Thesis
Full Text:: . Larry Burt and to my committee members Dr. Mike Martin, and Dr. Gene Nelson for their support

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Creator:: Angwin, Peter A.
Abstract:: Studies to identify the environmental factors that influence the rate of ectotrophic mycelial growth of Phellinus weirii (Murr.) Gilbertson along Douglas-fir roots were undertaken both in the laboratory and in the field. The effects of soil pH, nitrogen, moisture, temperature, microorganisms and bulk density were investigated. In the lab, the...
Resource Type:: Masters Thesis
Full Text:: of P. weirii was greatest at 15% soil water content. Maximum growth occurred at 20-25 C. Field

Genetics of sexuality and population genetics of Phellinus weirii

Creator:: Angwin, Peter A.
Abstract:: Phellinus weirii (Murr.) Gilbertson, cause of laminated root and butt rot, is a heterothallic basidiomycete lacking clamp connections. Two biological species groups of the fungus have been hypothesized, the Douglas-fir and cedar-types, on the basis of physiological, morphological and epidemiological differences. Single-spore and vegetative isolates differ in cultural morphology, nuclear...
Resource Type:: Dissertation
Full Text:: State University: Dr. Everett Hansen, for his help, patience and guidance through good times and bad

An economic analysis of supplier motivations at farmers markets

Creator:: Thiemann, Gerry B.
Resource Type:: Masters Thesis
Full Text:: Economic Analysis of Supplier Motivations at Farmers Markets Abstract approved: LawT^iVice^A. Burt

Insects associated with black stain root disease of Douglas-fir in western Oregon

Creator:: Witcosky, Jeffrey John
Abstract:: The root systems of Douglas-fir trees infected with Verticicladiella wagenerii and assigned by crown color and terminal growth characteristics to several stages of decline were excavated at three widely separated sites in the Coast Range of Oregon. Data were gathered on insect species present, extent of colonization of the root...
Resource Type:: Masters Thesis
Full Text:: Stain Root Disease of Douglas-fir in Western Oregon. Abstract approved: Redacted for Privacy ee C

Trichoderma spp. : distribution in stumps infested with Phellinus weirii and growth and antagonism in vitro

Creator:: Goldfarb, Barry
Abstract:: To determine which isolates will most rapidly replace Phellinus weirii in stumps and roots, Trichoderma spp. were isolated from P. weirii-infested stumps and roots, identified, and examined for growth rates and lethal effects on P. weirii in vitro. Phellinus weirii-infested Douglas-fir stumps and stump roots were sampled for microorganisms by...
Resource Type:: Masters Thesis
Full Text:: . ii Redacted for privacy Abstract approved. , Everett M. Hansen To determine which isolates will

Morphological variation, taxonomy, and host specificity of Phytophthora megasperma

Creator:: Hamm, Philip B.
Resource Type:: Masters Thesis
Full Text:: HOST SPECIFICITY OF PHYTOPHTHORA MEGASPERMA Abstract approved: Redacted for privacy Everett M. Hansen

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Creator:: Reynolds, Keith M.
Abstract:: Groups of second-growth Douglas-fir (Mirb.) Franco were excavated in plots of two to six trees on two sites in the vicinity of Cowichan Lake, Vancouver Is., British Columbia. Eleven excavation plots provided 36 trees which could be studied in pairs (a total of 50 pairs) in order to ascertain the...
Resource Type:: Masters Thesis
Full Text:: . Everett M Hansen and Dr. Lewis F. Roth who first sparked my interest in forest pathology and have helped

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
Full Text:: Southeast Alaaa Abstract approved: Redacted for Privacy Everett-M. Hansen Alaska-cedar (Chamaecvparis

Pathogenesis and intertree transmission of Verticicladiella wageneri in Douglas-fir (Pseudotsuga menziesii)

Creator:: Hessburg, Paul F.
Abstract:: Verticicladiella wageneri Kendr. is a vascular wilt pathogen of Douglas-fir in the Pacific Northwest, The disease is characterized by black staining of colonized sapwood; crown symptoms are those typical of a wilting syndrome. Histopathological studies revealed that the pathogen is limited to the xylem but causes vascular dysfunction in both...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: Redacted for Privacy Dr. Lewis F. Roth for Dr. Everett M. Hansen Verticicladiella

ScholarsArchive@OSU

The Oregon wine industry : an economic analysis

Environmental factors influencing the rate of spread of Phellinus weirii (Murr.) Gilbertson in young-growth Douglas-fir

Genetics of sexuality and population genetics of Phellinus weirii

An economic analysis of supplier motivations at farmers markets

Insects associated with black stain root disease of Douglas-fir in western Oregon

Trichoderma spp. : distribution in stumps infested with Phellinus weirii and growth and antagonism in vitro

Morphological variation, taxonomy, and host specificity of Phytophthora megasperma

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Pathological and ecological aspects of decline and mortality of Chamaecyparis nootkatensis in southeast Alaska

Pathogenesis and intertree transmission of Verticicladiella wageneri in Douglas-fir (Pseudotsuga menziesii)

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