| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 Agriculture Canada Research Station, Summerland BC V0H 1Z0, Canada
2 Department of
Horticulture Oregon State University, Corvallis, OR.
3 Dept. of Food Science, Oregon State University, Corvallis, OR.
Three-year-old Pinot noir vines growing in the Okanagan Valley of British Columbia (BC) were subjected over four years to three canopy treatments (10 shoots/m row, 20 shoots/m row, Scott Henry with 10 shoots/m canopy) in combination with two crop levels (full crop, half crop) in a factorialized treatment arrangement. Scott Henry-trained vines had lowest weight of cane prunings and highest crop loads. The 20 shoots/m row and Scott Henry vines had higher yields and clusters per vine along with lower cane weights and berry weights, than the 10 shoots/m row treatments. Reducing crop level led to slightly less yield per vine, but higher cluster weights, berries per cluster, and berry weights. The 20 shoots/m row and Scott Henry treatments had lowest soluble solids, pH, anthocyanins, and juice color (OD420, OD520, intensity; 20 shoots/m only), but Scott Henry had lowest berry and juice titratable acidity (TA). Reducing crop level increased soluble solids, pH, and juice color (OD420, hue, intensity). Both the 10 shoots/m row and Scott Henry treatments contained the least dense canopies with the least percentage of shaded clusters. Since Scott Henry training produced relatively high yields, good canopy density, and acceptable fruit composition, this training system is recommended for low to moderately-vigorous Pinot noir vines.
Key words: canopy management, trellising, training, canopy division, fruit composition
Submitted on September 27, 1993
This article has been cited by other articles:
|
|
 |
|
  J. Tardaguila, P. R. Petrie, S. Poni, M. P. Diago, and F. Martinez de Toda Effects of Mechanical Thinning on Yield and Fruit Composition of Tempranillo and Grenache Grapes Trained to a Vertical Shoot-Positioned Canopy Am. J. Enol. Vitic., December 1, 2008; 59(4): 412 - 417. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. K. Myers, J. A. Wolpert, and G. S. Howell Effect of Shoot Number on the Leaf Area and Crop Weight Relationship of Young Sangiovese Grapevines Am. J. Enol. Vitic., December 1, 2008; 59(4): 422 - 424. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Prajitna, I. E. Dami, T. E. Steiner, D. C. Ferree, J. C. Scheerens, and S. J. Schwartz Influence of Cluster Thinning on Phenolic Composition, Resveratrol, and Antioxidant Capacity in Chambourcin Wine Am. J. Enol. Vitic., September 1, 2007; 58(3): 346 - 350. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. G. Reynolds, T. Molek, and C. De Savigny Timing of Shoot Thinning in Vitis vinifera: Impacts on Yield and Fruit Composition Variables Am. J. Enol. Vitic., December 1, 2005; 56(4): 343 - 356. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Keller, L. J. Mills, R. L. Wample, and S. E. Spayd Cluster Thinning Effects on Three Deficit-Irrigated Vitis vinifera Cultivars Am. J. Enol. Vitic., June 1, 2005; 56(2): 91 - 103. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
