Index Catalog // ScholarsArchive@OSU

Plant Growth, Leaf Gas-Exchange, Fruit Yield and Quality as Affected by Green Covers

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Three different green cover treatments were compared in their effect on leaf gas-exchange, vine growth, yield and fruit composition. The treatments were: grass cover, resident plants, and an insectary plant mixture. Photosynthesis, transpiration, and water use efficiency were lower for vines with a grass cover. Leaf area and shoot growth...
Resource Type:: Technical Report

Performance of Pinot noir and Chardonnay Clones : 1996-1997

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Pinot noir and Chardonnay are the two main varieties in Oregon. Together they comprise approximately 60% of the Oregon winegrape acreage, and 64% of the total production for a value of $10,482,000 (69%). Internationally, clonal selection of Pinot noir and Chardonnay have made available, for each variety, an array of...
Resource Type:: Technical Report

Performance of Pinot Noir and Chardonnay Clones

Creator:: Candolfi-Vasconcelos, M. Carmo, Castagnoli, Steve, and Watson, Barney
Abstract:: Pinot noir and Chardonnay are the two main varieties in Oregon. Together they comprise 60% of the Oregon winegrape acreage, and 61% of the total production for a value of $8,906 (66%). Clonal selection of Pinot noir and Chardonnay have made available a wide range of productivity and quality levels....
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1998-1999

Creator:: Pinkerton, Jack and Candolfi-Vasconcelos, M. Carmo
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. Population densities of Xiphinema americanum (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause 10-25% loss in California vineyards. However, these nematode...
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1996-1997

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell
Abstract:: Survey data compiled in 1995 showed that plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85% of Oregon vineyards. In over 37% of the samples collected, population densities of Xiphinema wnericanwn (dagger nematode) and Criconenw1la xenoplax (ring nematode) were greater than levels known...
Resource Type:: Technical Report

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards

Creator:: Pinkerton, Jack, Candolfi-Vasconcelos, M. Carmo, and Ingham, Russell E.
Abstract:: Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85 % of Oregon vineyards. Population densities of Xiphinema americanun (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause > 10-25% loss in California vineyards. However,...
Resource Type:: Technical Report

OSU Mother Block Maintenance : 1998-1999

Creator:: Castagnoli, Steve and Candolfi-Vasconcelos, M. Carmo
Abstract:: The introduction of new clones and rootstock varieties has played an important role in the development of the Oregon wine grape industry. The OSU Grapevine Mother Block has been an integral part of this overall vine improvement program providing a readily accessible source of specific pathogen tested grapevine plant material...
Resource Type:: Technical Report

OSU Mother Block Maintenance : 1997-1998

Creator:: Castagnoli, Steve and Candolfi-Vasconcelos, M. Carmo
Abstract:: The introduction of new clones and rootstock varieties has played an important role in the development of the Oregon wine grape industry. The OSU Grapevine Mother Block has been an integral part of this overall vine improvement program providing a readily accessible source of specific pathogen tested grapevine plant material...
Resource Type:: Technical Report

Introduction of Integrated Production: Evaluation of a Powdery Mildew Forecasting System at the Lewis Brown Farm 1995-1996

Creator:: Candolfi-Vasconcelos, M. Carmo, Castagnoli, Steve, and Robbins, Scott
Abstract:: One of the goals of the Integrated Production approach is an overall reduction of pesticide use, including the application of fungicides for disease control. Powdery mildew is the most frequently sprayed disease in Oregon vineyards. Losses to powdery mildew vary from year to year, but may be substantial. Because little...
Resource Type:: Technical Report

Integrated Production: Increasing and Characterizing Biodiversity in Oregon Vineyards Evaluation of Botanical Diversity in Oregon Vineyards

Creator:: Schonenberger, Patrik M., Candolfi-Vasconcelos, M. Carmo, and Mallory-Smith, Carol
Abstract:: Soil and vineyard vegetation management are tools that may be used to create stable growing conditions for the grapevine roots and to preserve soil fertility for high grape quality in future years. The use of cover crops is commonly practiced in viticultural areas where precipitation exceeds 600-700 min (24-28 in)...
Resource Type:: Technical Report

Integrated Production: Impact of Vineyard Floor Biodiversity on Vine Performance 1998-1999

Creator:: Candolfi-Vasconcelos, M. Carmo, Schonenberger, Patrik M., and Castagnoli, Steve
Abstract:: Increasing ecological awareness led to the conceptualization and implementation of sustainable production systems such as Integrated Production. Integrated Production (IP) aims at achieving optimum yields of high quality fruit utilizing environmentally safe procedures. Priority is given to the utilization and enhancement of natural regulating processes and to the reduction of...
Resource Type:: Technical Report

Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1998-1999

Creator:: Castagnoli, Steve and Candolfi-Vasconcelos, M. Carmo
Abstract:: Pinot noir and Chardonnay are the two main winegrape varieties in Oregon. In 1998, they comprised approximately 59% of the Oregon winegrape acreage, and 57% of the total production for a value of $10,803,000 (62% of total) (1). Internationally, clonal selection of Pinot noir and Chardonnay have made available, for...
Resource Type:: Technical Report

Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1997-1998

Creator:: Castagnoli, Steve and Candolfi-Vasconcelos, M. Carmo
Abstract:: Pinot noir and Chardonnay are the two main winegrape varieties in Oregon. In 1997, they comprised approximately 58% of the Oregon winegrape acreage, and 60% of the total production for a value of $14,171,000 (66% of total) (1). Internationally, clonal selection of Pinot noir and Chardonnay have made available, for...
Resource Type:: Technical Report

Evaluation of varieties, clones, and rootstocks: I. Evaluation of phylloxera-resistant rootstocks for the cultivars Pinot noir, Chardonnay, Pinot gris and Merlot : 1998-1999

Creator:: McAuley, Michael and Candolfi-Vasconcelos, M. Carmo
Abstract:: With new vineyard planting and the replanting of older vineyards on phylloxera-resistant rootstock on the rise, grape growers are looking for rootstocks that are good fits for a particular site and management style. Making an informed decision on rootstocks before planting can help create a vineyard that will be manageable...
Resource Type:: Technical Report

Evaluation of Pinot noir Maturity and Fruit Composition During the 1995 Vintage

Creator:: Watson, Barney, Chen, Hsio Ping, Candolfi-Vasconcelos, M. Carmo, and Castagnoli, Steve
Abstract:: During the 1995 harvest season Pinot noir development during ripening was monitored at Woodhall Vineyards (WHV) in Alpine and at three commercial vineyard sites at Croft (CR) Vineyards in Monmouth, Rex Hill Kings Ridge Vineyard (RHKR) in Newberg, and Erath Vineyards (ER) in Dundee. Cluster samples (25) were taken weekly...
Resource Type:: Technical Report

Evaluation of Grape Powdery Mildew Forecasting Programs

Creator:: Pscheidt, Jay W., Wittig, H. P. P., and Candolfi-Vasconcelos, M. Carmo
Abstract:: Three forecasting programs for scheduling fungicide applications were selected for comparison with the standard Oregon phenology based program. The UCDavis (California) program used leaf wetness and temperature early in the year and only temperature during the summer. The New York program was based on rainfall and temperature. The German Oi...
Resource Type:: Technical Report

Evaluation of Cover Crop Effects in a 'Pinot noir' Vineyard

Creator:: Schonenberger, Patrik M. and Candolfi-Vasconcelos, M. Carmo
Abstract:: Three different cover crop treatments were compared for their effects on vine growth, leaf gas exchange, yield parameters and fruit composition. The treatments were: resident plants, an insectary plant mixture and a grass cover. At veraison (August 2 1), photosynthesis rate was lowest for the vines with the grass cover...
Resource Type:: Technical Report

Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines. The treatments were: upright vertical, cane pruned (Guyot); upright vertical, spur pruned (Bi-lateral Cordon); Scott Henry, cane pruned; Lyre, cane pruned; and Geneva Double Curtain...
Resource Type:: Technical Report

Effect of Canopy Management Practices on Fruit Set, Yield Components and Fruit Composition

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: The effect of shoot tipping, lateral shoot length and cluster zone leaf removal on yield, yield components, fruit composition and soundness were evaluated on mature Pinot noir grapevines. Shoot tip removal at bloom improved percent fruit set, number of berries per cluster and cluster weight. Elimination of lateral shoots also...
Resource Type:: Technical Report

Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Creator:: Ratliff-Peacock, Joey, Candolfi-Vasconcelos, M. Carmo, and Henry, Scott
Abstract:: Pinot noir vines, trained to the Scott Henry trellising system were separated into four different quadrants: Bottom canopy, trained toward the ground; Top canopy, trained upwards; East orientation, receiving the morning sunlight; and West orientation, receiving afternoon sunlight. Yield components and fruit composition were measured for each canopy, orientation, and...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines [1997-1998]

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines in 1996 and 1997. This trial was performed on established vines planted on a low-vigor valley floor site, in the Willamette Valley of Oregon. The...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance : Experiment II: Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Creator:: Ratliff-Peacock, Joey, Candolfi-Vasconcelos, M. Carmo, and Henry, Scott, Sr.
Abstract:: For this trial, established Pinot noir vines, located on the valley floor of the Umpqua Valley in Oregon were used. In 1996 and 1997 sixteen vines trained to the Scott Henry trellising system were separated into four different quadrants, determined by shoot orientation: Bottom canopy, shoots trained toward the ground;...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines in 1996 and 1997. This trial was performed on established vines planted on a low-vigor valley floor site, in the Willamette Valley of Oregon. The...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Irrigation on Ripening Dynamics, Photosynthetic Performance, and Canopy Development of Mature Pinot Noir Vines in the North Willamette Valley

Creator:: Howe, Jessica and Candolfi-Vasconcelos, M. Carmo
Abstract:: Most quality wines are produced in areas where annual precipitation is below 700 to 800 mm (Jackson & Schuster, 1994), and evidence suggests that high rainfall or excessive irrigation lowers quality. Excessive irrigation is reported to slow ripening, increase yields partially berry enlargement, elevate juice pH and acid content, and...
Resource Type:: Technical Report

Development and Testing of Bacteria Free Grapevines for Prevention of Crown Gall in Oregon Nurseries and Vineyards

Creator:: Miller, Marilyn L., Moore, Larry W., Mentzer, Jessica, Dierenfield, Lora, Ferguson, Kathleen, Candolfi-Vasconcelos, M. Carmo, and Castagnoli, Steve
Abstract:: Agrobacterium vitis is a bacterium that causes crown gall in grapevines. Plant injury from freezing temperatures or mechanical damage during cultivation often provide wounds required for infection to occur. Crown gall may kill grapevines and a new shoot is often brought up from the root to replace dead vines. Discovery...
Resource Type:: Technical Report

Cooperative Rootstock Trials: Research Update

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Five replicated rootstock trials established in Oregon's three main viticultural regions were evaluated for the effect of rootstock on Pinot noir performance. All the trials except Alpine included the following seven rootstocks: ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, 44-53 Malegue, 420 A Millardet et De Grasset,...
Resource Type:: Technical Report

Choosing Phylloxera-Resistant Rootstocks for Oregon Vineyards: The Impact on Vine Performance and Productivity

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Five replicated rootstock trials established in Oregon's three main viticultural. regions were evaluated for the effect of rootstock on Pinot noir performance. All the trials except Alpine included the following seven rootstocks: ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, 44-53 Mal6gue, 420 A Millardet et De Grasset,...
Resource Type:: Technical Report

Canopy Management Practices and Vine Performance [1996-1997]

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: A factorial design was used to vary leaf canopy structure of mature Pinot noir grapevines during two consecutive seasons: shoot tipping at full bloom (yes or no), lateral shoot length (no laterals, laterals cut back to 4 leaves at full bloom, laterals allowed to grow undisturbed) and cluster zone leaf...
Resource Type:: Technical Report

ScholarsArchive@OSU

Plant Growth, Leaf Gas-Exchange, Fruit Yield and Quality as Affected by Green Covers

Performance of Pinot noir and Chardonnay Clones : 1996-1997

Performance of Pinot Noir and Chardonnay Clones

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1998-1999

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards : 1996-1997

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards

OSU Mother Block Maintenance : 1998-1999

OSU Mother Block Maintenance : 1997-1998

Introduction of Integrated Production: Evaluation of a Powdery Mildew Forecasting System at the Lewis Brown Farm 1995-1996

Integrated Production: Increasing and Characterizing Biodiversity in Oregon Vineyards Evaluation of Botanical Diversity in Oregon Vineyards

Integrated Production: Impact of Vineyard Floor Biodiversity on Vine Performance 1998-1999

Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1998-1999

Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1997-1998

Evaluation of varieties, clones, and rootstocks: I. Evaluation of phylloxera-resistant rootstocks for the cultivars Pinot noir, Chardonnay, Pinot gris and Merlot : 1998-1999

Evaluation of Pinot noir Maturity and Fruit Composition During the 1995 Vintage

Evaluation of Grape Powdery Mildew Forecasting Programs

Evaluation of Cover Crop Effects in a 'Pinot noir' Vineyard

Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Effect of Canopy Management Practices on Fruit Set, Yield Components and Fruit Composition

Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Development of Viticultural Practices to Improve Winegrape Performance Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines [1997-1998]

Development of Viticultural Practices to Improve Winegrape Performance : Experiment II: Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Irrigation on Ripening Dynamics, Photosynthetic Performance, and Canopy Development of Mature Pinot Noir Vines in the North Willamette Valley

Development and Testing of Bacteria Free Grapevines for Prevention of Crown Gall in Oregon Nurseries and Vineyards

Cooperative Rootstock Trials: Research Update

Choosing Phylloxera-Resistant Rootstocks for Oregon Vineyards: The Impact on Vine Performance and Productivity

Canopy Management Practices and Vine Performance [1996-1997]

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