17 research outputs found
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Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1998-1999
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 each variety, an array of clones with wide ranging levels of productivity and fruit quality. In the Champagne region, clones were selected for increased yields; in Burgundy, the main criterion was high fruit quality; and in Switzerland, the Pinot noir clone Mariafeld was selected for disease resistance. In the U. S., clones selected here and elsewhere continue to be evaluated for their suitability to local growing conditions. The Pinot noir clones included in the trial at Woodhall III Vineyard (Table 1) include representatives of diverse types loosely classified into four groups: 1) Pinot fin, typically characterized by having small clusters and prostrate growth habit; 2) Mariafeld, most noted for having loose clusters; 3) Upright, known for their erect growth habit; and 4) Fertile, typically having large clusters and prostrate growth habit (2). The Chardonnay clones at Woodhall III Vineyard (Table 2), although not as numerous as clones in the Pinot noir trial, also represent a range of types with different levels of productivity and fruit quality
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Choosing Phylloxera-Resistant Rootstocks for Oregon Vineyards: The Impact on Vine Performance and Productivity
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, 5 C Teleki, and Harmony. At Alpine, the rootstock selection included ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, Riparia Gloire, Selection Oppenheim. 4 (SO 4) and Kober 5BB. Rootstock effect on scion performance varied greatly with site, and the responses typically were not consistent from site to site. At Newberg, Pinot noir grafted to 420 A and 44-53 had the best yields but there were no rootstock difference in must soluble solids. At Lafayette no rootstock differences in yields could be observed but soluble solids in the juice were better with 44-53. At Umpqua, the most vigorous site, no rootstock differences in yield or must soluble solids could be detected. At Eagle Point, a site with low vigor due to overcropping, yields were better when vines were grafted to 44-53 and must soluble solids was improved when grafted to 3309 C. At Alpine, with a different selection of rootstocks, yields were better when the stock was SO 4 but there was no rootstock effect on Brix
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Evaluation of varieties, clones, and rootstocks: II. & III. Performance of Pinot noir and Chardonnay clones : 1997-1998
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 each variety, an array of clones with wide ranging levels of productivity and fruit quality. In the Champagne region, clones were selected for increased yields; in Burgundy, the main criterion was high fruit quality; and in Switzerland, the Pinot noir clone Mariafeld was selected for disease resistance. In the U.S., clones selected here and elsewhere continue to be evaluated for their suitability to local growing conditions. The Pinot noir clones included in the trial at Woodhall III Vineyard (Table 1) include representatives of diverse types loosely classified into four groups: 1) Pinot fm, typically characterized by having small clusters and prostrate growth habit; 2) Mariafeld, most noted for having loose clusters; 3) Upright, known for their erect growth habit; and 4) Fertile, typically having large clusters and prostrate growth habit (2). The Chardonnay clones at Woodhall III Vineyard (Table 2), although not as numerous as clones in the Pinot noir trial, also represent a range of types with different levels of productivity and fruit quality
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Cooperative Rootstock Trials: Research Update
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, 5 C Teleki, and Harmony. At Alpine, the rootstock selection included ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, Riparia Gloire, Selection Oppenheim 4 (SO 4) and Kober 5BB. Rootstock effect on scion performance varied greatly with site, and the responses typically were not consistent from site to site. At Newberg, Pinot noir grafted to 420 A had the best yields and ungrafted vines, the lowest. Vines grafted to 101-14 had the highest must soluble solids. At Lafayette, no rootstock differences in soluble solids in the juice could be observed but yields were better with 3309 C. At Umpqua, the most vigorous site, vines grafted to 45-53 had the best yields and when grafted to 101-14 had the lowest fruit production. There was no difference on must soluble solids at this site. At Eagle Point, a site with very shallow soil and low vigor, yields were better when vines were grafted to 3309 C and lower when grafted to Harmony or 5C. Must soluble solids did not respond to rootstock. At Alpine, with a different selection of rootstocks, yields were better when the stock was SO 4 but there was no rootstock effect on Brix
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Evaluation of Pinot noir Maturity and Fruit Composition During the 1995 Vintage
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 during ripening and analyzed for cluster weights, berry weights, Brix, titratable acidity, malic acid, pH, potassium content, and skin anthocyanin and phenolic content
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2018 pest management guide for tree fruits in the mid-Columbia area : Hood River, The Dalles, White Salmon
The primary purpose of this pest management guide is to provide fruit growers with up-to-date information on registered pesticide uses considered to be effective for controlling insect pests, mite pests, and diseases, when applied at the listed rates and timings. Pesticide use is one element of integrated pest management programs. See pages 2-9 for additional information on pesticide stewardship and integrated pest management resources.Revised January 2018. Information within this publication may be outdated. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
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2017 pest management guide for tree fruits in the mid-Columbia area : Hood River, The Dalles, White Salmon
Revised January 2017.
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogPresents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide for tree fruit pesticides; (4) illustrated bud development chart and associated stages for apples, pears, peaches, apricots, cherries, and plums; (5) reentry levels for common pesticides; and (6) application rates for chemical thinning and growth regulator sprays
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OSU Mother Block Maintenance : 1998-1999
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 for industry and researchers. Since July 1995, the Department of Horticulture has carried out maintenance of the OSU Grapevine Mother Block at the Lewis Brown Farm, including propagation and maintenance of greenhouse grown stock plants. Additionally, the propagation and distribution of plant material from the Mother Block, previously carried out by the Foundation Seed and Plant Materials Project, is being performed as part of the viticulture research and extension program at OSU. During the 1997-1998 season, approximately 1840 winegrape cuttings (1040 dormant; 800 mist- propagated), and 365 rootstock cuttings (325 dormant; 40 mist-propagated) were distributed to growers in Oregon, Washington, California, and Canada. Additionally, approximately 1200 cuttings were provided to OSU, USDA, UC, and WSU researchers. Under the management of the OSU viticulture program, new clones and rootstock varieties identified to meet specific industry needs or those of researchers are being added to the Mother Block. Fifty-two new grapevine selections have been imported into Oregon from the Centre for plant Health in British Columbia, and Foundation Plant Materials Service in California since July 1995 (Table 1). Pinot blanc, Pinot gris, and Merlot are heavily represented on this list. Clones of these varieties may be included in future clonal evaluation trials in Oregon. Additionally, following an international search, Pinot blanc clones VCR 5 and VCR 7 (Italy), 122 (France), and 10-GM (Germany), and Pinot gris clones Rauscedo 6 (Italy), VCR 5 (Italy), 195-06 and 195-13 (France), and 13 Mf and 34 B1 (Romania) have been identified as clones considered to be most promising for future importation. The Mother Block will continue to provide a source of virus tested grapevine plant material for industry and researchers. During the 1998 season, in collaboration with USDA Plant Pathologist Bob Martin, ongoing virus testing of the Mother Block has continued. The presence of phylloxera in Oregon will eventually necessitate reestablishing the OSU Mother Block with grafted vines. We have begun implementing a plan for carrying this out
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Performance of Pinot noir and Chardonnay Clones : 1996-1997
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 clones with wide ranging levels of productivity and fruit quality. In the Champagne region, clones were selected for increased yields; in Burgundy, the main criterion was high fruit quality; and in Switzerland, the Pinot noir clone Mariafeld was selected for disease resistance. In the U.S., clones selected here and elsewhere continue to be evaluated for their suitability to local growing conditions. The Pinot noir clones included in the trial at Woodhall III Vineyard include representatives of diverse types loosely classified into four groups: 1) Pinot fin, typically characterized by having small clusters and prostrate growth habit; 2) Mariafeld, most noted for having loose clusters; 3) Upright, known for their erect growth habit; and 4) Fertile, typically having large clusters and prostrate growth habit (Price and Watson 1995). The Chardonnay clones at Woodhall III Vineyard, although not as numerous as clones in the Pinot noir trial, also represent a range of types with different levels of productivity and fruit quality. Vines in the Woodhall III Vineyard Pinot noir and Chardonnay clonal trials were in the eighth leaf in the 1996 season. Both trials consist of own rooted vines, planted on a 1.8 m x 2.7 m (6 ft x 9 ft) spacing, and trained to an upright vertical trellis. In 1996, yield components and juice composition were measured in both trials. Additionally in the Pinot noir clones, cluster architecture, fruit set, and vegetative growth parameters were measured. Results of skin extract analysis will be reported at a later date
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OSU Mother Block Maintenance : 1997-1998
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 for industry and researchers. Since July 1995, the Department of Horticulture has carried out maintenance of the OSU Grapevine Mother Block at the Lewis Brown Farm, including propagation and maintenance of greenhouse grown stock plants. Additionally, the propagation and distribution of plant material from the Mother Block, previously carried out by the Foundation Seed and Plant Materials Project, is being performed as part of the viticulture research and extension program at OSU. During the 1996-1997 season, approximately 900 winegrape cuttings (600 dormant; 300 mistpropagated), 3000 rootstock cuttings (200 dormant; 2800 mist-propagated), and 10 table grape cuttings were distributed to growers in Oregon, Washington, California, New York, Virginia, and Canada. Additionally, approximately 2000 cuttings were provided to OSU and USDA researchers. Rootstocks account for approximately 77% of the total non-research cuttings distributed. Under the management of the OSU viticulture program, new clones and rootstock varieties identified to meet specific industry needs or those of researchers are being added to the Mother Block. Forty-eight new grapevine selections have been imported into Oregon from the Centre for plant Health in British Columbia, and Foundation Plant Materials Service in California since July 1995 (Table 1). Pinot blanc, Pinot gris, and Merlot are heavily represented on this list. Clones of these varieties may be included in future clonal evaluation trials in Oregon. Additionally, following an international search, Pinot blanc clones VCR 5 and VCR 7 (Italy), 122 (France), and 10-GM (Germany), and Pinot gris clones Rauscedo 6 (Italy), VCR 5 (Italy), 195-06 and 195-13 (France), and 13 Mf and 34 Bl (Romania) have been identified as clones considered to be most promising for future importation. The Mother Block will continue to provide a source of virus tested grapevine plant material for industry and researchers. During the 1997 season, in collaboration with USDA Plant Pathologist Bob Martin, virus testing using serological methods was initiated for all selections in the Mother Block. The presence of phylloxera in Oregon will eventually necessitate reestablishing the OSU Mother Block with grafted vines. A plan for carrying this out is currently in the initial stages