Index Catalog // ScholarsArchive@OSU

The Biology and control of the septoria diseases of winter wheat in western Oregon

Creator:: DiLeone, Julie A., Coakley, Stella M., Karow, Russ, Mundt, Christopher C., and Oregon State University. Agricultural Experiment Station
Abstract:: The septoria diseases of winter wheat are a limiting factor to wheat production in the Willamette Valley. This publication will describe the symptoms and development of the septoria diseases, including the influence of environmental conditions, the reactions of different cultivars to Septoria, the impact of Septoria on yield, and control...
Resource Type:: Technical Report
Full Text:: Extension Cereal Specialist Dept. of Crop and Soil Science Oregon State University Crop Science Bldg., Room

Response to fenamiphos, extraction techniques and population dynamics of Pratylenchus penetrans on western Oregon red raspberry

Creator:: Lolas, Mauricio
Abstract:: The effects of fenamiphos on soil and root populations of Pratylenchus penetrans were evaluated in four red raspberry cv. Willamette fields in Northwestern Oregon. Field 1 was a silty clay loam with 53% organic matter (OM). Field 2 and 3 were silty loam soils with 3.25 and 2.55% OM, respectively...
Resource Type:: Masters Thesis
Full Text:: % organic matter (OM). Field 2 and 3 were silty loam soils with 3.25 and 2.55% OM, respectively and field 4

Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Creator:: Kohnen, Paul D.
Abstract:: Biological, serological, and molecular characteristics of the P4 pathotype of pea seedborne mosaic potyvirus (PSbMV) were investigated. The characterization allowed P4 to be differentiated from other pathotypes of the same virus. P4 was distinguished from P1 on the basis of host symptomatology. It induced varied, but often distinctive symptoms in...
Resource Type:: Dissertation
Full Text:: aphids (Acyrthosiphon pisum) allowed 3 or 5 min acquisition access periods (AAP's) transmitted P4 at a

Mycorrhizal and other root endophytic fungi of lupines in the Pacific Northwest

Creator:: O'Dell, Thomas E.
Abstract:: We investigated the root endophytic fungi of lupine using four approaches: (1) occurrence of fungal colonization in field-collected roots; (2) growth response of L. latifolius to inoculation with two types of fungi; (3) structure of root colonizations of Pinus and Lupinus by Phialocephala fortinii, a septate endophytic fungus of lupine;...
Resource Type:: Dissertation
Full Text:: inoculation with two types of fungi; (3) structure of root colonizations of Pinus and Lupinus by

Transcript analysis of Feldmannia Sp. virus, FsV : characterization of the major capsid protein gene and its relationship to known viruses

Creator:: Jia, Yibing
Abstract:: The Feldmannia sp. virus is a large icosahedral virus that persistently infects marine brown alga Feldmannia sp.. So far, there is no information available about viral genome replication, gene structure and gene expression in this unique viral-host system. The purpose of this study was to characterize the general features of...
Resource Type:: Masters Thesis
Full Text:: iridoviruses, fish lymphocystis disease virus, frog virus 3, and with African swine fever virus. Redacted

Enhancement of biological control for postharvest diseases of pear

Creator:: Benbow, Jesse M.
Abstract:: Yeast biocontrol agents that were applied to 'Bose' and 'Anjou' pears in the field up to three weeks prior to harvest were found to survive on the fruit at high population levels on both pear varieties. Cryptococcus infirmo-miniatus, Cryptococcus laurentii, and Rhodotorula glutinis maintained populations averaging 5 x 10⁶ cfu/fruit...
Resource Type:: Masters Thesis
Full Text:: reduced when the atmospheres was only 3% CO2. In contrast, the 12% or 20% CO2 atmospheres did not have

The reproductive ecology of the pacific yew (Taxus brevifolia nutt.) under a range of overstory conditions in western Oregon

Creator:: DiFazio, Stephen P.
Abstract:: The influence of overstory openness on the reproductive ecology of Pacific yew (Taxus brevifolia Nutt.) was investigated on 4 sites in western Oregon over 2 years. The breeding system of T. brevifolia was found to deviate from pure dioecy under a broad range of canopy and site conditions. Production of...
Resource Type:: Masters Thesis
Full Text:: shedding varied from 3 to 20 days, and tended to be Redacted for Privacy more protracted at lower

Soil water pressure and Verticillium dahliae interactions on potato

Creator:: Gaudreault, Suzanne M.
Abstract:: A greenhouse experiment was conducted in 1991 and in 1992 to determine the effect of soil water pressure on potato (cv Russet Burbank) plant growth and infection by Verticillium dahliae. Soil water pressures of -0.01, -0.03, -0.08, or -0.15 MPa were combined factorially with two inoculum concentrations, 0 or 10...
Resource Type:: Masters Thesis
Full Text:: and vascular colonization by V. dahliae were determined. In weeks 3 and 4, change in foliar dry

Chloroplast DNA characters, phylogeny, and classification of Lathyrus (Fabaceae)

Creator:: Asmussen, Conny B. and Liston, Aaron
Abstract:: Mapped cpDNA restriction site characters were analyzed cladistically and the resulting phylogenetic hypotheses were used to test monophyly and relationships of the infrageneric classification of Lathyrus (Fabaceae) proposed by Kupicha (1983, Notes from the Royal Botanic Garden Edinburgh 41: 209–244). The validity of previously proposed classification systems and questions presented...
Resource Type:: Article
Full Text:: Restore_85_310.387_401 387 American Journal of Botany 85(3): 387

A biochemical analysis of the interaction of victorin and oats

Creator:: Navarre, Duroy A.
Abstract:: Victoria blight of oats is caused by the fungus Cochhobolus victoriae. This fungus is pathogenic due to its ability to produce the host-selective toxin victorin. Previously, a 100-kD protein that binds victorin in vivo only in susceptible genotypes was identified as the P protein of the glycine decarboxylase complex (GDC)....
Resource Type:: Dissertation
Full Text:: accumulation. DNA laddering is seen in leaves after 3 hr treatment with toxin. The ethylene inhibitors AOA

ScholarsArchive@OSU

The Biology and control of the septoria diseases of winter wheat in western Oregon

Response to fenamiphos, extraction techniques and population dynamics of Pratylenchus penetrans on western Oregon red raspberry

Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Mycorrhizal and other root endophytic fungi of lupines in the Pacific Northwest

Transcript analysis of Feldmannia Sp. virus, FsV : characterization of the major capsid protein gene and its relationship to known viruses

Enhancement of biological control for postharvest diseases of pear

The reproductive ecology of the pacific yew (Taxus brevifolia nutt.) under a range of overstory conditions in western Oregon

Soil water pressure and Verticillium dahliae interactions on potato

Chloroplast DNA characters, phylogeny, and classification of Lathyrus (Fabaceae)

A biochemical analysis of the interaction of victorin and oats

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