Participatory Research Engages Industry and Leads to Adoption of Methods That Challenge Long-Held Production Standards

A citizen science project engaged wine industry professionals in challenging the long-held belief that low yields are required for production of high-quality wine. Strategies emerged for the planning and implementation of projects involving industry members as citizen scientists. Keys to success included factors related to industry inclusion, planning, coordination, and communication. Direct industry involvement in the research project strengthened industry–university relationships and led to the adoption of new production practices that had been difficult to bring about prior to facilitation of industry members\u27 firsthand experimentation

Factors Influencing Yield Management of Pinot Noir Vineyards in Oregon

Oregon\u27s wine grape industry uses yield targets to achieve quality in Pinot Noir vineyards, and this practice has led to increases in cost of production. A multiapproach study was conducted to investigate how vineyard target yields are set, why yield thresholds exist, and who influences decisions related to vineyard target yields. Growers suspect that higher yields are possible without compromising quality, but they are unable to change yield targets due to winery and buyer decision making. To be effective in eliciting change and realizing impact, Extension educators need to do targeted outreach to buyers and wine makers in addition to growers and consider participatory research

Establishing a vineyard in Oregon : a quick-start resource guide

This guide was developed as a quick reference for those interested in establishing a vineyard in Oregon. A step-by-step format guides readers to the basic information they would need to consider before developing a vineyard, including how to develop a business plan, determine site suitability, investigate cultivars, and order plants.Published January 2009. Revised September 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Oregon ‘Pinot noir’ grape anthocyanin enhancement by early leaf removal

Complete cluster zone leaf removal of 'Pinot noir' was initiated at three separate pre-veraison growth stages (bloom, grain-pea size, and bunch closure) and maintained leaf free until harvest, for four growing seasons (2008-2011). Fruit anthocyanin composition was examined at harvest for the last two vintages (2010 and 2011) and compared to a control-no cluster zone leaf removal. Experiments were conducted at two commercially operating Oregon vineyards (site A = 420 rootstock/'Pinot noir' 115 scion and site B = 3309C rootstock/'Pinot noir' 777 scion). All clusters contained the five anthocyanins typically found in 'Pinot noir'. Leaf removal at bloom and maintained until harvest produced maximum anthocyanin accumulation in 'Pinot noir' grapes (site A = 85.24 mg/100 g and site B = 125.06 mg/100 g), compared to no leaf removal (control: site A = 57.91 mg/100 g and site B = 97.56 mg/100 g). Even leaf removal at bunch closure (last leaf removal initiation period) increased grape anthocyanin (site A 73.22 mg/bog and site B = 118.93 mg/100 g) compared to control, but total anthocyanins were lower than grapes from bloom leaf removal (first time period). Results differed slightly by vineyard site and rootstock/scion combination. Published by Elsevier Ltd.Keywords: Canopy management, Pigment, Quality, Leaf pull, Colour, Defoliatio

Factors Influencing Yield Management of Pinot Noir Vineyards in Oregon

Oregon's wine grape industry uses yield targets to achieve quality in Pinot Noir vineyards, and this practice has led to increases in cost of production. A multiapproach study was conducted to investigate how vineyard target yields are set, why yield thresholds exist, and who influences decisions related to vineyard target yields. Growers suspect that higher yields are possible without compromising quality, but they are unable to change yield targets due to winery and buyer decision making. To be effective in eliciting change and realizing impact, Extension educators need to do targeted outreach to buyers and wine makers in addition to growers and consider participatory research