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Winter Injury Study 2006- Grape Bud Survival - March 6-10, 2006

Author: Ken Slingerland - Tender Fruit & Grape Specialist/OMAFRA; Hugh Fraser - Agricultural Engineer/OMAFRA; Ryan Brewster - Ker Crop Management Services/KCMS; Kevin Ker - CCOVI Brock University & KCMS; Dr. Helen Fisher - Research Scientist/University of Guelph,
Creation Date: 02 April 2006
Last Reviewed: 02 April 2006


Grape bud sampling to establish winter survival is part of the 3 year - CanAdvance and CRESTech funded Winter Injury and Wind Machine project. The tables in this article report the sampling results based on the bud collection during the week of March 6-10, 2006. However, the percent alive may vary up or down from the last sample due to the variation in the samples taken. The tables below are based on multiple samples and multiple sites within an area for each cultivar. Check out the Brock University website for more information on this project.

Grape Growers of Ontario (GGO) and the Wine Council of Ontario (WCO) are the major sponsors of the project. Other partners include; Stephane Bosc, Orchard Rite, Roger Vail, Chinook, KCMS, Agricorp, Ontario Tender Fruit Producers' Marketing Board, the NPF & VGA, OMAFRA, Brock University (CCOVI) and the University of Guelph.

The Parkway zone runs approximately 1 km along the west side of the Niagara River from Niagara-on-the-Lake to Queenston; the Lakeshore zone is approximately 1 km south of the lake from the Niagara River to Grimsby; the Central zone continues south of the Lakeshore zone to the base of the escarpment; the Bench zone starts at the south side of the Central zone to the brink of the escarpment and the Vinemount zone runs south of the Bench Zone.

Map showing climatic zones of the Niagara Peninsula grape growing areas for grape bud sampling purposes.

8 Sampling Zones Used

% Live Buds - Vinifera - March 6-10, 2006 (NS means no sample taken)

Cultivar Location East of Canal West of Canal
Cabernet Franc Bench 65-85 82-95
Central 86-90 80-84
Lakeshore 81-82 82
Parkway 77-86 NS
Vinemount NS 84-85
Cabernet Sauvignon Central NS 77
Lakeshore NS 77
Parkway 72 NS
Chardonnay Bench 75-90 82-92
Central 85-92 94
Lakeshore 84-86 NS
Parkway 86-88 NS
Vinemount NS 83
Gamay Parkway 97 NS
Merlot Bench 83-95 86-99
Central 71 66-94
Lakeshore 88 87-93
Parkway 88-91 NS
Vinemount NS 87
Pinot Noir Bench 98 78-80
Central 89 80-90
Lakeshore 79 77-81
Parkway 88 NS
Vinemount NS 80-87
Riesling Bench 73-94 85-87
Central 77-89 69-97
Lakeshore 83 86
Parkway 72-77 NS
Vinemount NS 66-87
Sauvignon Blanc Central 85 88
Lakeshore 59 NS
Syrah Lakeshore NS 64
Parkway 43 NS

% Live Buds - Labrusca - March 6-10, 2006 ( NS means no sample taken)

Cultivar Location East of Canal West of Canal
Concord Vinemount NS 91-93
Niagara Vinemount NS 92-94

% Live Buds - French Hybrid - March 6-10, 2006 (NS means no sample taken)

Cultivar Location East of Canal West of Canal
Baco Noir Central 94 82
Parkway 86 NS
Foch Central NS 84-89
Vinemount NS 88
Vidal Central 84-89 65-85
Lakeshore 74 NS
Parkway 71-77 NS
Vinemount NS 55-70

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