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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:: 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
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Watson, Barney
Abstract:: The Oregon wine industry has grown rapidly in recent years to over 100 wineries. There is a strong need for enology Extension, technical assistance, and technology transfer of relevant research for commercial application. Enology Extension at OSU provides technical assistance to winery personnel including wine analysis, consultation on prodution problems,...
Resource Type:: Technical Report

Creator:: Watson, Barney and Price, Steve
Abstract:: We have studied commercial fermentation practices for three vintages in order to learn how they affect extraction and stability of anthocyanin pigments and other phenolic compounds in Pinot noir. Wines were monitored during fermentation, processing, and aging for anthocyanin and phenolic content, color intensity, and for phenolic profiles using high...
Resource Type:: Technical Report

Creator:: Sugar, David, Lombard, Porter, and Watson, Barney
Abstract:: 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...
Resource Type:: Technical Report

Creator:: Daeschel, Mark A., Gloria, M. Beatriz A., Simon-Sarkadi, L., and Watson, Barney
Abstract:: Wines, specifically those in which lactic acid bacteria can grow can cause transient toxic effects due to the formation of biogenic amines such as histamine and tyramine. Some people specifically avoid red wines because they are more often associated with headaches and other discomforts. An understanding of the origin, occurrence...
Resource Type:: Technical Report

Creator:: Price, Steven F., Valladao, Marilin, and Watson, Barney
Abstract:: Thirty five vineyard blocks of Pinot noir were sampled at harvest by taking a two hundred cluster sample in 1993. Commercial wines from these blocks were analyzed by HPLC at two and nine months of age. Cluster weights ranged from 72 to 148 g, berry weights from 0.55 to 0.90...
Resource Type:: Technical Report

Creator:: Price, Steve, Watson, Barney, and Valladao, Marilin
Abstract:: Variability in fruit set and yield is a serious problem in Oregon viticulture, particularly with Pinot noir. Climatic variation during the flowering period contributes significantly to this problem by affecting fruit set and cluster weight. Cool wet weather during bloom results in poor set, small clusters, and low yields. Seasons...
Resource Type:: Technical Report

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