Index Catalog // ScholarsArchive@OSU

Yield responses of invasive grasses to carbon doses

Creator:: Brunson, Jessi L.
Abstract:: The sagebrush steppe ecosystem of the northern Great Basin is severely degraded and continues to decline due in large part to the invasive, non-native annual grasses Bromus tectorum L. (cheatgrass) and Taeniatherum caput-medusae (L.) Nevski (medusahead). Restoration of invasive-dominated areas is difficult, but can be enhanced by adding a carbon...
Resource Type:: Masters Thesis
Full Text:: and b) Lincoln Bench and c) back-transformed mean seeds/m2 and b) mean seeds/g plant for medusahead

Within-population genetic structure differs between two sympatric sister-species of ectomycorrhizal fungi, Rhizopogon vinicolor and R. vesiculosus

Creator:: Dunham, Susie M., Mujic, Alija Bajro, Spatafora, Joseph W., and Kretzer, Annette M.
Abstract:: Using spatial autocorrelation analysis, we examined the within-population genetic structure of Rhizopogon vinicolor and R. vesiculosus, two hypogeous ectomycorrhizal (EM) species that are sympatric sister taxa known to differ in their clonal structure. We collected 121 sporocarps and 482 tuberculate EM of both species from a 20 ha forest stand...
Resource Type:: Article
Full Text:: determined the size of sporocarps with the volumetric formula (4/3)pabc (where a, b and c are the radii of

Wind farm potential is higher in prime habitat for uncommon soil crust lichens

Creator:: Root, Heather T., McCune, Myrica, and McCune, Bruce
Abstract:: Introduction: Biotic soil crust communities contribute valuable ecosystem services and biodiversity in steppe ecosystems. The uncommon crust lichens Acarospora schleicheri, Fuscopannaria cyanolepra, Rhizocarpon diploschistidina, and Texosporium sancti-jacobi are associated with fine-textured soils along rivers of the Columbia Basin. A. schleicheri and R. diploschistidina indicate late-successional habitat and may serve as...
Resource Type:: Article
Full Text:: vegetation, soils, and climate in Oregon, USA. J Arid Environ 79:93–100 Root HT, Miller JED, McCune B (2011

Water deficit stress effects on bacterial ring rot of potato caused by Clavibacter michiganensis subsp. sepedonicus

Creator:: Crabtree, Kristine L.
Abstract:: Population size of Clavibacter michiganensis subsp. sepedonicus in potato cv Russet Burbank and plant response as affected by drought were assessed in a greenhouse experiment. Water deficit stress and no stress treatments, and inoculum densities of 0 or 2 X 10⁷ cfu C. m. sepedonicus/seed piece were arranged factorially. Stem...
Resource Type:: Masters Thesis
Full Text:: ) experiment 1 and B) experiment 2. Fig. 4. Effect of inoculum of Clavibacter 50 michiganensis subsp

Vitamin B1 content in potato: effect of genotype, tuber enlargement, and storage, and estimation of stability and broad-sense heritability

Creator:: Goyer, Aymeric and Haynes, Kathleen G.
Abstract:: Thiamine pyrophosphate (vitamin B1) is an essential nutrient in the human diet, and is often referred as the energy vitamin. Potato contains modest amounts of thiamine. However, the genetic variation of thiamine concentrations in potato has never been investigated. In this study, we determined thiamine concentrations in freshly-harvested unpeeled tubers...
Resource Type:: Article
Full Text:: managing the potato crop at HAREC, Steve James, Charles Brown, Rich Quick, Stastny Farms (Malin, OR

Virus-Derived Gene Expression and RNA Interference Vector for Grapevine

Creator:: Kurth, Elizabeth G., Peremyslov, Valera V., Prokhnevsky, Alexey I., Kasschau, Kristin D., Miller, Marilyn, Carrington, James C., and Dolja, Valerian V.
Abstract:: The improvement of the agricultural and wine-making qualities of the grapevine (Vitis vinifera) is hampered by adherence to traditional varieties, the recalcitrance of this plant to genetic modifications, and public resistance to genetically modified organism (GMO) technologies. To address these challenges, we developed an RNA virus-based vector for the introduction...
Resource Type:: Article
Full Text:: . Kasschau, Marilyn Miller, James C. Elizabeth G. Kurth, Valera V. Peremyslov, Alexey I. Interference

Viability and infective potential of Phytophthora pini zoospores in a recirculating irrigation system

Creator:: Shay, Sarah D.
Abstract:: Phytophthora pini Leonian, recently re-established from P. citricola I, is a pathogen with a wide range of forest and nursery hosts. It causes foliar infections in horticultural nurseries in Oregon, where recirculating irrigation systems are common. Increased use of recirculating irrigation systems may contribute to disease caused by waterborne plant...
Resource Type:: Masters Thesis
Full Text:: ..................................................... 70 Appendix B: ANOVA tables and Fisher’s PSLD Tables for Detached Leaf Assays (Ch. 3

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

Creator:: Zehsazian, Hassan
Abstract:: Verticillium wilt of hops in Oregon, caused by Verticillium dahliae Kleb., was first reported in 1956. Later, V. albo-atrum Reinke & Berth. was also isolated from infected hop plants, and thus both species of the fungus were shown to be the causal agents of the disease in Oregon. The purpose...
Resource Type:: Dissertation
Full Text:: 1927 by Harris (34) in England, and Verticillium albo-atrum R & B was identified as the causal agent

Vegetation Change from the Euro-American Settlement Era to the Present in Relation to Environment and Disturbance in Southwest Oregon

Creator:: Duren, Olivia C., Muir, Patricia S., and Hosten, Paul E.
Abstract:: Faced with landscapes degraded by fire suppression, logging, and grazing, land managers in the interior western US are attempting to restore habitat structure and function. In southwest Oregon, landscape-scale fuels treatments are being implemented with goals including recreating historic vegetation structure, despite poor understanding of the nature of the landscape...
Resource Type:: Article
Full Text:: (BLM n. d. b) Percent of site in federal ownership BLM 2009 317Long-term Vegetation Change

Vascular and nonvascular vegetation of the Caldera of Mt. Aniakchak, Alaska

Creator:: Hasselbach, Linda M.
Resource Type:: Masters Thesis
Full Text:: diversity (B) is a measure of heterogeneity, the argument can be restated to suggest that as the B of a

ScholarsArchive@OSU

Yield responses of invasive grasses to carbon doses

Within-population genetic structure differs between two sympatric sister-species of ectomycorrhizal fungi, Rhizopogon vinicolor and R. vesiculosus

Wind farm potential is higher in prime habitat for uncommon soil crust lichens

Water deficit stress effects on bacterial ring rot of potato caused by Clavibacter michiganensis subsp. sepedonicus

Vitamin B1 content in potato: effect of genotype, tuber enlargement, and storage, and estimation of stability and broad-sense heritability

Virus-Derived Gene Expression and RNA Interference Vector for Grapevine

Viability and infective potential of Phytophthora pini zoospores in a recirculating irrigation system

Verticillium wilt of hops : pathogenicity, host range, and temperature relations of the causal agents

Vegetation Change from the Euro-American Settlement Era to the Present in Relation to Environment and Disturbance in Southwest Oregon

Vascular and nonvascular vegetation of the Caldera of Mt. Aniakchak, Alaska

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