Index Catalog // ScholarsArchive@OSU

Improving initiation and mineral nutrition for hazelnut (Corylus avellana) micropropagation

Creator:: Hand, Charles R.
Abstract:: Corylus avellana L. is a global commodity and a valuable crop for the U.S. Pacific Northwest. A tremendous amount of work has been put into the development of healthy disease free, high yielding and tasty hazelnuts for the in-shell and confectionary markets. Clonal propagation is required to provide nursery trees...
Resource Type:: Masters Thesis
Full Text:: my committee including Dr. Shawn Mehlenbacher, Dr. Virginia Stockwell, and Professor Mike Gamroth

Characterization and Cultivar Susceptibility Assessment of Bacterial Blight in Hazelnut Caused by Xanthomonas arboricola pv. corylina

Creator:: Webber, John B., III
Abstract:: Bacterial blight (Xanthomonas arboricola pv. corylina) (Xac) of hazelnut (Corylus avellana L.) was described first in Oregon in 1915 and is now recognized as a damaging disease of young hazelnut trees worldwide. Stressed hazelnut trees in conditions such as planting on marginal sites, and trees between 1 and 4-years-old are...
Resource Type:: Masters Thesis
Full Text:: from my committee chair Nik Wiman and my graduate committee members Virginia Stockwell, Jay

Phenotyping Ornamental Plants: Case Studies in Fruit Quality Attributes from Vaccinium ovatum and Disease Resistance of Cotoneaster spp.

Creator:: Neill, Kristin E.
Abstract:: Landscape plants are highly diverse and nursery producers often grow thousands of taxa to satisfy the varied needs and aesthetic tastes of consumers. Related to this diversity, ornamental plant breeders must be nimble and diverse in their approach. Two seemingly disparate studies were conducted to investigate improving ornamental shrubs –...
Resource Type:: Masters Thesis
Full Text:: committee members is also sincerely appreciated, including Dr. Virginia Stockwell, Dr. Chad Finn, and Dr

Genome sizing and fire blight resistance screening in Cotoneaster

Creator:: Rothleutner, Joseph J.
Abstract:: Cotoneaster is an ornamental shrub valued for showy flowers, berries and architecture as well as the ability tolerate adverse conditions under which other taxa fail. Cotoneaster is a highly diverse genus of over 400 species, of which few are available in the US nursery trade. Some species commercially available have...
Resource Type:: Masters Thesis
Full Text:: the rest of my committee: Drs. Shawn Mehlenbacher, Virginia Stockwell, and Jim Owen. Shawn, you ask

Role of surfactants in foliar uptake of plant growth regulators

Creator:: Tan, Siyuan
Abstract:: Penetration of ¹⁴C-labeled plant growth regulators into the surface of apple (Malus pumila M.) leaves pre-soaked in 10 ml I⁻¹ solutions of surfactant was measured by detecting changes in radioactivity of the solution in glass cylinders sealed to the astomatal, adaxial surface of the leaf discs. Penetration of 2,4-D [(2,4-dichlorophenoxy)acetic...
Resource Type:: Dissertation
Full Text:: Foliar Uptakg of Plant/ffiowth Regulators Abstract approved: / Garvin D. Crabtree

Irrigation and plant density effects on head rot and yield of broccoli

Creator:: Ludy, Robin L.
Abstract:: Effects of amount of applied water and frequency of irrigation on head rot and yield of three broccoli cultivars were evaluated in 1987 and 1988. Two irrigation frequencies were established with a line-source sprinkler system for 5.5 weeks during heading. The low-frequency experiment was watered once per week and the...
Resource Type:: Masters Thesis
Full Text:: Density Effects on Head Rot and Yield of Broccoli Abstract approved: ... . , . Delbert D

Efficacy of Cultural Practices for Mitigating the Negative Impacts of Grapevine Red Blotch Virus on Vine Physiology and Fruit Composition in Oregon Pinot Noir

Creator:: Copp, Cody R.
Abstract:: The recently emerged Grapevine Red Botch Virus (GRBV) impedes proper berry ripening primarily by reducing sugar accumulation and color development in red-fruited Vitis vinifera L. cultivars. To date, there is no recommended management strategy for virus spread or the impacts of the disease beyond removal and replacement of infected vines....
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Alexander D. Levin The recently emerged Grapevine Red Botch Virus (GRBV) impedes

Winter Squash: Production and Storage of a Late Winter Local Food

Creator:: Wetzel, Jennifer D.
Abstract:: Winter squash is an important late winter vegetable crop for local and regional markets; however, farmers in western Oregon report that this crop is marginally profitable due to losses in storage and relatively low yields for the high culinary value kabocha and buttercup types. In order to increase the sales...
Resource Type:: Masters Thesis
Full Text:: are typically grown without irrigation in other places such as Virginia (Bratsch, 2009) and New

Effects of irrigation and nitrogen on cauliflower development, yield and quality

Creator:: Bratsch, Anthony D.
Abstract:: Field experiments were conducted with cauliflower (Brassica oleracea var. botrytis cv. Snowball Y ) to determine crop development, yield, quality and maturity response to various seasonal water levels, and to specific water stress timing in relation to curd initiation. The effects of nitrogen rate, timing, and source and the application...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Anthony D. Bratsch for the degree

Facilitating plant-parasitic nematode management decisions for Washington Vitis vinifera growers : determining the spatial distribution of plant-parasitic nematodes and the host status of Vitis spp. to Meloidogyne hapla

Creator:: Howland, Amanda D.
Abstract:: A major constraint to the production of self-rooted wine grapes (Vitis vinifera) in eastern Washington is plant-parasitic nematodes. Plant-parasitic nematodes can impact grape productivity by limiting water and nutrient uptake, educing physiological changes, and extracting plant nutrients from roots, thereby reducing root biomass, plant vigor, and yield. The most commonly...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Amanda D. Howland

ScholarsArchive@OSU

Improving initiation and mineral nutrition for hazelnut (Corylus avellana) micropropagation

Characterization and Cultivar Susceptibility Assessment of Bacterial Blight in Hazelnut Caused by Xanthomonas arboricola pv. corylina

Phenotyping Ornamental Plants: Case Studies in Fruit Quality Attributes from Vaccinium ovatum and Disease Resistance of Cotoneaster spp.

Genome sizing and fire blight resistance screening in Cotoneaster

Role of surfactants in foliar uptake of plant growth regulators

Irrigation and plant density effects on head rot and yield of broccoli

Efficacy of Cultural Practices for Mitigating the Negative Impacts of Grapevine Red Blotch Virus on Vine Physiology and Fruit Composition in Oregon Pinot Noir

Winter Squash: Production and Storage of a Late Winter Local Food

Effects of irrigation and nitrogen on cauliflower development, yield and quality

Facilitating plant-parasitic nematode management decisions for Washington Vitis vinifera growers : determining the spatial distribution of plant-parasitic nematodes and the host status of Vitis spp. to Meloidogyne hapla

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