In the past ten years, variation in Oregon vineyard yields has come from two main causes: winter injury and inconsistent fruit set. Together these factors have caused significant yield variation in almost every Oregon vineyard. In 1991, a research project was started at Oregon State to develop and evaluate a...
Traditional vineyard practices in Oregon are labor intensive and require large pools of available labor for pruning, shoot positioning, and harvest. A mechanized system of grape growing has been developed in Australia to eliminate almost all of the handwork involved with grape production. The cornerstone of this system is minimal...
The 18 winegrape varieties in this trial were in sixth leaf in 1995. Vines were pruned in February to either a Scott Henry (3-4 permanent arms on a vertical trellis using two fruiting wires 12 inches apart at 30 and 42 inch height) plus 2 extra disposal canes on some...
The Oregon wine industry is based on a relatively narrow genetic base of grape varieties -and clones. Diversifying varieties that are currently in commercial production by introducing and testing new clones will broaden the scope of those varieties and provide added complexity to the wines. New varieties will expand the...
Objectives:
· Evaluate canopy management options available to Oregon growers for their effects on yield, grape composition, and wine quality.
· Investigate the relationships between vine growth, cluster environment, grape composition and wine quality.
· Develop techniques that improve the capabilities of Oregon winegrape growers to obtain consistent yields with...
Pinot noir research in Oregon is aimed at improving wine quality and production and at increasing the diversity of virus-free clonal material available to our wine industry. Numerous clones of Pinot noir have been identified in France where the cultivar is known for its wide range of genetic variability. Because...
The new varietal trial at SOES was monitored during the growing season and during ripening by David Sugar and Porter Lombard (see Winegrape Variety Trial in Southern Oregon). The 1993 vintage was a late ripening season and not all the varieties developed sufficient maturity for experimental wine production. Tempranillo, Viognier,...
The new varietal trial at the Southern Oregon Experiment Station was monitored during the growing season and during ripening by David Sugar and Porter Lombard. Most of the varieties in the trial ripened well this vintage compared to 1993 where not all of the varieties developed adequate maturity. Unusually warm...
Objectives:
1. To evaluate compositional changes and flavor development during ripening in order to develop better harvest indices, and to develop practical methods to evaluate optimal winegrape maturity.
2. To evaluate the effects of viticultural practices on winegrape maturation, juice and wine composition, and wine quality.
3. To evaluate new...
1. To provide technical services and consultation for solving commercial winemaking problems. 2. To develop applied workshops and technical seminars for the continuing education and professional development of Oregon wine industry personnel. 3. To apply research results to commercial wine production to improve wine stability and quality. The Oregon wine...