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• 1. [Article] Deficit Irrigation of Cabernet Sauvignon and Tempranillo: Impacts on Vine Growth, Yield, and Berry Composition

  Due to various reasons the previous investigator decided to pull out the crop level trials from the original experiment designed in 2010 season. However, the irrigation field experiments implemented in ...

  Citation × Citation Citation Abstract Copy Title: Deficit Irrigation of Cabernet Sauvignon and Tempranillo: Impacts on Vine Growth, Yield, and Berry Composition Author: Balint, Gabriel Due to various reasons the previous investigator decided to pull out the crop level trials from the original experiment designed in 2010 season. However, the irrigation field experiments implemented in the 2010 season continued in 2011, in order to find out the impact of varied deficit irrigation regimes on vine development and fruit composition in Tempranillo and Cabernet Sauvignon cultivars. Title: Deficit Irrigation of Cabernet Sauvignon and Tempranillo: Impacts on Vine Growth, Yield, and Berry Composition Author: Balint, Gabriel Due to various reasons the previous investigator decided to pull out the crop level trials from the original experiment designed in 2010 season. However, the irrigation field experiments implemented in the 2010 season continued in 2011, in order to find out the impact of varied deficit irrigation regimes on vine development and fruit composition in Tempranillo and Cabernet Sauvignon cultivars. Close

• 2. [Article] An Engineers Approach to Irrigation Management in Oregon Pinot noir

  Vineyard managers must decide on the timing and amount of irrigation. In Oregon the need for irrigation differs greatly year to year and field to field based on micro climate, soil, root development, plant ...

  Citation × Citation Citation Abstract Copy Title: An Engineers Approach to Irrigation Management in Oregon Pinot noir Author: Selker, John, Baer, Emilie Vineyard managers must decide on the timing and amount of irrigation. In Oregon the need for irrigation differs greatly year to year and field to field based on micro climate, soil, root development, plant health, and root stock. We suggest the use of leaf water potential as a useful management tool. We show that for this test to provide consistent values, leaves should be wrapped prior to removal, should have consistent solar exposure, but need not have precisely the same age. We illustrate the use of this measure with data from the 2001 growing season taken in two Willamette valley fields. The data showed that irrigation was not required throughout the season, and helps explain the unexpectedly high yields noted by the vineyards. Title: An Engineers Approach to Irrigation Management in Oregon Pinot noir Author: Selker, John, Baer, Emilie Vineyard managers must decide on the timing and amount of irrigation. In Oregon the need for irrigation differs greatly year to year and field to field based on micro climate, soil, root development, plant health, and root stock. We suggest the use of leaf water potential as a useful management tool. We show that for this test to provide consistent values, leaves should be wrapped prior to removal, should have consistent solar exposure, but need not have precisely the same age. We illustrate the use of this measure with data from the 2001 growing season taken in two Willamette valley fields. The data showed that irrigation was not required throughout the season, and helps explain the unexpectedly high yields noted by the vineyards. Close

• 3. [Article] Monitoring of Soil Moisture: Methods, Improving Wine Quality and Extent of Wetting

  Interim Progress Report to the Wine Advisory Board, Agricultural Research Foundation, and Participating Growers

  Citation × Citation Citation Abstract Copy Title: Monitoring of Soil Moisture: Methods, Improving Wine Quality and Extent of Wetting Author: Rojas, Wilson, Selker, John, Candolfi-Vasconcelos, M. Carmo Interim Progress Report to the Wine Advisory Board, Agricultural Research Foundation, and Participating Growers Title: Monitoring of Soil Moisture: Methods, Improving Wine Quality and Extent of Wetting Author: Rojas, Wilson, Selker, John, Candolfi-Vasconcelos, M. Carmo Interim Progress Report to the Wine Advisory Board, Agricultural Research Foundation, and Participating Growers Close

• 4. [Article] Water and nutrient competition with cover crops in Willamette Valley vineyards. Final Report Northwest Center for Small Fruits Research 2004-2005 funding

  Objectives: I. To evaluate the effects of five cover crop mixes on grapevine: a) water stress b) nutrient status c) fruit production and quality d) shoot growth e) mycorrhizal colonization. II. To evaluate ...

  Citation × Citation Citation Abstract Copy Title: Water and nutrient competition with cover crops in Willamette Valley vineyards. Final Report Northwest Center for Small Fruits Research 2004-2005 funding Author: Schreiner, R. Paul, Sweet, Rebecca Objectives: I. To evaluate the effects of five cover crop mixes on grapevine: a) water stress b) nutrient status c) fruit production and quality d) shoot growth e) mycorrhizal colonization. II. To evaluate cover crop mixes for their: a) establishment rate b) biomass production c) nutrient content. Title: Water and nutrient competition with cover crops in Willamette Valley vineyards. Final Report Northwest Center for Small Fruits Research 2004-2005 funding Author: Schreiner, R. Paul, Sweet, Rebecca Objectives: I. To evaluate the effects of five cover crop mixes on grapevine: a) water stress b) nutrient status c) fruit production and quality d) shoot growth e) mycorrhizal colonization. II. To evaluate cover crop mixes for their: a) establishment rate b) biomass production c) nutrient content. Close

• 5. [Article] Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red Hill Soil 2001-2002

  Objectives of Research: 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics ...

  Citation × Citation Citation Abstract Copy Title: Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red Hill Soil 2001-2002 Author: Schreiner, R. Paul, Baham, John Objectives of Research: 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics of plant-available soil minerals. 3) Model the timing of uptake and allocation of mineral nutrients in different vine tissues. Title: Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red Hill Soil 2001-2002 Author: Schreiner, R. Paul, Baham, John Objectives of Research: 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics of plant-available soil minerals. 3) Model the timing of uptake and allocation of mineral nutrients in different vine tissues. Close

• 6. [Article] Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red-Hill Soil Over 2 Years 2002-2003

  Objectives of Research : 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics ...

  Citation × Citation Citation Abstract Copy Title: Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red-Hill Soil Over 2 Years 2002-2003 Author: Schreiner, R. Paul, Baham, John Objectives of Research : 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics of plant-available soil minerals. 3) Model the timing of uptake and allocation of mineral nutrients in different vine tissues. Title: Seasonal Dynamics of Mineral Uptake and Allocation in Whole Pinot noir Vines in a Red-Hill Soil Over 2 Years 2002-2003 Author: Schreiner, R. Paul, Baham, John Objectives of Research : 1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil. 2) Determine the associated seasonal dynamics of plant-available soil minerals. 3) Model the timing of uptake and allocation of mineral nutrients in different vine tissues. Close

• 7. [Article] The Effect of Cover Crops on Availability of Water to Grape Vines in the Willamette Valley in 1985

  This study was initiated in its original form in 1982 with the Yamhill Soil and Water Conservation District and the McMinnville Field Office of the USDA-Soil Conservation Service. The Soils Department, ...

  Citation × Citation Citation Abstract Copy Title: The Effect of Cover Crops on Availability of Water to Grape Vines in the Willamette Valley in 1985 Author: Vomocil, James A. This study was initiated in its original form in 1982 with the Yamhill Soil and Water Conservation District and the McMinnville Field Office of the USDA-Soil Conservation Service. The Soils Department, Oregon State University, was one of several cooperators, in part funded by The Wine Advisory Board. In 1984 and again in 1985, water use by grapevines and by a few associated cover crops in each of three vineyards was measured using the neutron probe method. Access tubes are permanently installed at monitoring sites and the neutron probe is lowered into the tubes for measurements at various depths at weekly to ten-day intervals. Water use is calculated by the difference between the final and the initial soil profile water contents plus rainfall occurring during the measurement season. Cover crops are recommended for vineyards because they provide certain advantages, but there are also disadvantages, or possible hazards. Title: The Effect of Cover Crops on Availability of Water to Grape Vines in the Willamette Valley in 1985 Author: Vomocil, James A. This study was initiated in its original form in 1982 with the Yamhill Soil and Water Conservation District and the McMinnville Field Office of the USDA-Soil Conservation Service. The Soils Department, Oregon State University, was one of several cooperators, in part funded by The Wine Advisory Board. In 1984 and again in 1985, water use by grapevines and by a few associated cover crops in each of three vineyards was measured using the neutron probe method. Access tubes are permanently installed at monitoring sites and the neutron probe is lowered into the tubes for measurements at various depths at weekly to ten-day intervals. Water use is calculated by the difference between the final and the initial soil profile water contents plus rainfall occurring during the measurement season. Cover crops are recommended for vineyards because they provide certain advantages, but there are also disadvantages, or possible hazards. Close

• 8. [Article] Identifying Optimal Nutrient Concentrations for Premium Winegrape Production Based on Physiological Needs and Fruit Quality. Proceedings Progress Report Northwest Center for Small Fruits Research 2006

  Objectives of Proposed Research: The goals of this project for the next few years are: 1) to develop optimal tissue nutrient levels for N, P, and K in winegrapes that are based on physiological performance ...

  Citation × Citation Citation Abstract Copy Title: Identifying Optimal Nutrient Concentrations for Premium Winegrape Production Based on Physiological Needs and Fruit Quality. Proceedings Progress Report Northwest Center for Small Fruits Research 2006 Author: Schreiner, R. Paul Objectives of Proposed Research: The goals of this project for the next few years are: 1) to develop optimal tissue nutrient levels for N, P, and K in winegrapes that are based on physiological performance and fruit quality, 2) to identify the best tissue (leaf vs. petiole) and time of growing season to collect samples for specific nutrients (N,P,K) to diagnose sub-optimal concentrations, and 3) to identify indicators (physiological or visual) of sub-optimal nutrient levels that growers can utilize to better manage winegrape nutrition. Specific Objectives for 2006: 1) Apply different levels of N, P, and K to 4 year-old vines and monitor growth, nutrient status, gas exchange and photochemistry responses to treatments. 2) Assess impact of nutrient status on fruit quality. Title: Identifying Optimal Nutrient Concentrations for Premium Winegrape Production Based on Physiological Needs and Fruit Quality. Proceedings Progress Report Northwest Center for Small Fruits Research 2006 Author: Schreiner, R. Paul Objectives of Proposed Research: The goals of this project for the next few years are: 1) to develop optimal tissue nutrient levels for N, P, and K in winegrapes that are based on physiological performance and fruit quality, 2) to identify the best tissue (leaf vs. petiole) and time of growing season to collect samples for specific nutrients (N,P,K) to diagnose sub-optimal concentrations, and 3) to identify indicators (physiological or visual) of sub-optimal nutrient levels that growers can utilize to better manage winegrape nutrition. Specific Objectives for 2006: 1) Apply different levels of N, P, and K to 4 year-old vines and monitor growth, nutrient status, gas exchange and photochemistry responses to treatments. 2) Assess impact of nutrient status on fruit quality. Close