A broad range of factors influence wine grape quality and manipulation of these factors has stimulated interest among grape growers, wine makers, and research scientists alike. One such factor affecting wine grape quality is crop level, particularly for Pinot noir. Since the capacity of a vine to ripen fruit depends...
For this trial, established Pinot noir vines, located on the valley floor of the Umpqua Valley in Oregon
were used. In 1996 and 1997 sixteen vines trained to the Scott Henry trellising system were separated
into four different quadrants, determined by shoot orientation: Bottom canopy, shoots trained toward the
ground;...
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...
The objectives of this study are to determine:
· How vine vigor and fruit composition vary in different alleyway management regimes: solid vegetative cover vs. every other alleyway of vegetative cover removed
· What differences are observed in different alleyway management regimes within a vineyard
· What differences are observed...
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...
Minimal pruning continues to look like a production system worthy of consideration in small scale commercial trials. In 1993, in a trial on Chardonnay at Woodhall vineyard, minimal pruning was compared to standard cane pruned vines on a vertical trellis. This was the second year of the trial.
Trellis design and canopy management have been major research topics in viticulture during the last ten years. The article by Dave Adelsheim in the first edition of the "Oregon Winegrowers Guide" and the presentations of Shaulis, Smart, Carboneau, Intrerari and Koblet at the 1984 Cool Climate Symposium in Eugene were...
Increasing ecological awareness led to the conceptualization and implementation of sustainable production systems such as Integrated Production. Integrated Production (IP) aims at achieving optimum yields of high quality fruit utilizing environmentally safe procedures. Priority is given to the utilization and enhancement of natural regulating processes and to the reduction of...
The objectives of this study are to determine:
• How the time of leaf pulling affects Pinot noir fruit quality and composition
• How the intensity of leaf pulling affects Pinot noir fruit quality and composition
• If there is a difference in fruit quality and composition when lateral leafs...
Objectives:
1. Evaluate canopy management options available to Oregon growers including trellising and pruning for their effects on yield and grape composition.
2. Investigate the relationships between vine growth, cluster environment cluster morphology, and grape composition.
3. Develop techniques that improve the capabilities of Oregon winegrape growers to maximize wine...