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Creator:: Price, Steve and Watson, Barney
Abstract:: The Chardonnay clonal trial was harvested on September 29th this year at the end of a week of unusually hot and dry weather. Most of the vines had been pruned to 20 nodes per vine but crop load was light due to small clusters. Yields ranged from less than 0.5...
Resource Type:: Technical Report

Creator:: Watson, Barney, Chen, Hsiao-Ping, McDaniel, Mina, Lederer, Cindy, Young, Sheri, and Price, Steve
Abstract:: Winemakers commonly attribute differences in color, color stability, and phenolic composition to different fermentation practices. The extraction of anthocyanin pigments and other phenolic compounds from the skins, pulp, seeds, and stems to a large degree determines the composition and quality of red wines. During the 1994 vintage we designed a...
Resource Type:: Technical Report

Creator:: Price, Steve and Watson, Barney
Abstract:: We harvested the first significant crop from the Woodhall clonal trials in 1993. Early results from clonal trials can be misleading but there are differences between clones that are already quite apparent in some cases. Many of the clone types could be readily identified this season by plant growth habit...
Resource Type:: Technical Report

Creator:: Watson, Barney, Lombard, Porter, Price, Steve, and McDaniel, Mina R.
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Price, Steve, Lombard, Porter, Watson, Barney, and McDaniel, Mina R.
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Price, Steve, Lombard, Porter, and Watson, Barney
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Price, Steve and Watson, Barney
Abstract:: In experiments in grape skin light transmission in 1991, we found that quercetin (a phenolic compound found in many plants) accumulates in sun exposed grape skin. The accumulation of quercetin in grape skins appeared to be a protective response to solar radiation and we were able to show that quercetin...
Resource Type:: Technical Report

Creator:: Price, Steve and Watson, Barney
Abstract:: Pinot noir is Oregon's most important wine grape variety, representing 38% of the state's total wine production. Oregon State University began importing Pinot noir clones from California and France in the 1970's to insure that Oregon growers had access to the full range of clonal types. Almost all of the...
Resource Type:: Technical Report

Creator:: Watson, Barney and Price, Steve
Abstract:: Oregon Pinot noir wines differ greatly in their color and phenolic profiles and this variability is due to both vineyard and to fermentation management practices. We have observed that Pinot noir fruit composition can vary significantly with vintage, with degree of maturity, with yields, with trellis systems, and with the...
Resource Type:: Technical Report

Creator:: Watson, Barney and Price, Steve
Abstract:: A Pinot noir maturity study began in 1987 at WoodhaU Vineyards in Alpine to monitor the compositional changes that occur during ripening. Extensive fruit sampling and analysis has been done throughout the ripening period for six years. In several years replicated wine lots were also produced from fruit harvested on...
Resource Type:: Technical Report

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