Index Catalog // ScholarsArchive@OSU

Influence of cover crops on vine performance at two Willamette Valley vineyards

Creator:: Sweet, Rebecca Marie
Abstract:: It is estimated that 50-75% of Oregon vineyards cultivate at least every other alley in order to 1) reduce water stress 2) increase vineyard canopy temperatures and 3) increase nutrient availability. Because many vineyards are situated on steep hillsides, frequent tillage could result in increased soil erosion, decreased soil quality...
Resource Type:: Masters Thesis
Full Text:: for Western Oregon vineyards is scarce. The cool climate, low soil pH, limiting phosphorus, and

Effect of soil moisture manipulation and nitrogen application on leaf gas exchange, fruit composition, and carbohydrate storage of Pinot noir and Chardonnay grapevines in the Willamette Valley

Creator:: Howe, Jessica
Abstract:: This study integrates various vineyard practices that may improve nitrogen availability to the vine, particularly during ripening. Different strategies aimed at increasing yeast assimilable nitrogen in the fruit at harvest have been evaluated. This study seeks to improve fermentation behavior and wine quality through vineyard practices used for nitrogen management....
Resource Type:: Masters Thesis
Full Text:: , cultivation, and nitrogen application to Pinot noir and Chardonnay grapevines in two commercial Oregon

Effect of crop level on yield components, fruit and wine composition, and wood carbohydrate reserves of Pinot noir grapes

Creator:: Brasher, Erik W.
Abstract:: Crop thinning trials were studied during two seasons at two locations in the northern Willamette Valley of Oregon. At Willakenzie Estate (site #1), research vines were Pinot noir clone Dijon 113 on 3309 rootstocks trained to a double Guyot. Vines were established in 1996 at a spacing of 2.5 x...
Resource Type:: Masters Thesis
Full Text:: the northern Willamette Valley of Oregon. At Willakenzie Estate (site #1), research vines were

Impacts of crop level and vine vigor on vine balance and fruit composition in Oregon Pinot noir

Creator:: Vance, Amanda J.
Abstract:: Vineyard management strategies, including vineyard floor management and crop level management, can be used to influence vine vigor and fruit composition. Two studies were conducted to evaluate the impact of these practices on Pinot Noir in Oregon's Willamette Valley. Managing crop levels is common in cool climate vineyard production though...
Resource Type:: Masters Thesis
Full Text:: , especially for the cool climate viticulture region of western Oregon, which is known for producing high

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Creator:: Vargas, Oscar L.
Abstract:: Northern highbush blueberry is a long-lived perennial crop that is well adapted to low soil pH conditions. The plants are often shallow rooted and absorb primarily the ammonium (NH₄) form of nitrogen (N) rather than nitrate-N (NO₃-N). Traditionally, commercial blueberry fields have been irrigated with overhead sprinklers and fertilized using...
Resource Type:: Dissertation
Full Text:: studies were conducted in western Oregon to compare fertigation to granular fertilizers and to develop

Using stable isotopes and visual gut examination to determine the diet composition of Pterostichus melanarius (Coleoptera: Carabidae) in western Oregon vegetable row crops

Creator:: Moulton, Laurel A.
Abstract:: The omnivorous ground beetle, Pterostichus melanarius Illager (Coleoptera: Carabidae), is a ubiquitous inhabitant of western Oregon crop land. Because it is often the most abundant ground beetle, and attains densities that could lead to serious impacts on its prey sources, I sought to understand the overall diet composition, and specifically...
Resource Type:: Masters Thesis
Full Text:: : Carabidae) in Western Oregon Vegetable Row Crops Abstract approved

Characterizing grapevine canopy architecture

Creator:: Navarrete, Alejandra
Abstract:: Vertically shoot positioned (VSP) training systems are common in Oregon's Willamette Valley, where deep fertile soils and high regional precipitation task growers with curbing vegetative vigor within this system. Management strategies, such as canopy hedging and cluster-zone leaf removal, are used to improve microclimate within the canopy and around the...
Resource Type:: Masters Thesis
Full Text:: Willamette Valley of Oregon. Maximum leaf length, maximum leaf width, mid-vein length and the distance

Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition

Creator:: Sampaio, Tiago Luís Barros
Abstract:: A rootstock trial was established in 1997 at the OSU Woodhall vineyard, located in the Southern Willamette Valley, which included two experiments. The first experiment was a factorial of four varieties grafted on to 9 rootstocks, and also as ungrafted vines (a split-plot design). The second experiment was a randomized...
Resource Type:: Dissertation
Full Text:: A DISSERTATION submitted to Oregon State University in partial fulfillment of the

Primocane-fruiting blackberries : the effect of summer-pruning, tipping, and chilling on primocane morphology, fruiting season, and yield

Creator:: Thompson, Ellen
Abstract:: The effect of primocane management on flowering and fruiting patterns was studied in primocane-fruiting blackberry (Rubus subgenus Rubus, Watson) cultivars 'Prime-Jan'® and 'Prime-Jim'® over two years. Primocanes that were "soft-tipped" (upper 2-5 cm removed) at 1.0 m were compared to un-tipped canes. In both years, soft-tipped primocanes developed 2-3 fold...
Resource Type:: Masters Thesis
Full Text:: as western Oregon, a tunnel is required to harvest much of the crop. This type of blackberry shows

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

Creator:: Green, Jessica M.
Abstract:: Weed management in sustainable farming systems often requires the integration of several different pest management techniques. Cultural, biological, and chemical pest control efforts can be utilized to contribute to the common goal of reducing weeds in vegetable row crop systems. This research addresses how common disturbances such as tillage and...
Resource Type:: Masters Thesis
Full Text:: Agroecosystems by Jessica M. Green A THESIS submitted to Oregon State University

ScholarsArchive@OSU

Influence of cover crops on vine performance at two Willamette Valley vineyards

Effect of soil moisture manipulation and nitrogen application on leaf gas exchange, fruit composition, and carbohydrate storage of Pinot noir and Chardonnay grapevines in the Willamette Valley

Effect of crop level on yield components, fruit and wine composition, and wood carbohydrate reserves of Pinot noir grapes

Impacts of crop level and vine vigor on vine balance and fruit composition in Oregon Pinot noir

Nitrogen fertigation practices to optimize growth and yield of northern highbush blueberry (Vaccinium corymbosum L.)

Using stable isotopes and visual gut examination to determine the diet composition of Pterostichus melanarius (Coleoptera: Carabidae) in western Oregon vegetable row crops

Characterizing grapevine canopy architecture

Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition

Primocane-fruiting blackberries : the effect of summer-pruning, tipping, and chilling on primocane morphology, fruiting season, and yield

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

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