The UVM Grape Program: Extension and Research for the commercial grape grower in Vermont and beyond... Dr. Lorraine Berkett, Dr. Elena Garcia, Terence Bradshaw, Marlys Eddy |
The UVM Grape Program: Extension and Research for the commercial grape grower in Vermont and beyond... Dr. Lorraine Berkett, Dr. Elena Garcia, Terence Bradshaw, Marlys Eddy |
2005 Vine Phenology for Selected Sites in Vermont
2005 Estimated Date and Degree-Day Accumulation (Base 50F, from Jan. 1) for Various Vine Phenology Stages of Specific Grape Cultivars Benson, VT Elevation 189 meters (Degree Days in Parentheses) |
||||
| Date | St Croix |
Frontenac |
Riesling |
Leon Millot |
Bud Swell |
. | . | . | . |
Bud Break |
5/17 (159) | . | . | . |
New Shoots 1/2"-1" |
. | 5/17 | 5/17 | 5/17 |
New Shoots 3"-5" |
. | . | . | . |
New Shoots 10"-12" |
6/08 (370) | 6/08 | 6/08 | 6/08 |
Trace Bloom |
. | . | . | . |
Full Bloom (50% caps fallen) |
. | . | 6/22 |
. |
post bloom |
6/22 (620) | 6/22 | . | 6/22 |
veraison |
.8/16 (1816) | 8/16 | . | 8/16 |
2005 Estimated Date and Degree-Day Accumulation (Base 50F, from Jan. 1) for Various Vine Phenology Stages of Specific Grape Cultivars New Haven, VT Elevation 122 meters (Degree Days in Parentheses) |
||||
| Date | LaCrescent | Prairie Star | St. Croix |
Frontenac |
Bud Swell |
. | 5/17 | 5/17 | . |
Bud Break |
5/17 (151) | . | . | 5/17 |
New Shoots 1/2"-1" |
. | . | . | . |
New Shoots 3"-5" |
. | . | . | . |
New Shoots 10"-12" |
. | . | . | . |
Trace Bloom |
. | 6/16 | 6/16 | . |
Full Bloom (50% caps fallen) |
6/16 (554) | . | 6/22 | 6/16 |
post bloom |
6/22 (625) | 6/22 | . | 6/22 |
veraison |
8/16 (1833) | 8/10 (1699) | 8/16 | 8/10 |
2005 Estimated Date and Degree-Day Accumulation (Base 50F, from Jan. 1) for Various Vine Phenology Stages of Specific Grape Cultivars Shelburne, VT Elevation 71 meters (Degree Days in Parentheses) |
||||
| Date | Arctic Riesling | Vidal | Riesling |
Traminette |
Bud Swell |
. | . | . | . |
Bud Break |
. | . | . | 5/27 |
New Shoots 1/2"-1" |
5/27 (180) | 5/27 | 5/27 | . |
New Shoots 3"-5" |
. | . | . | 6/07 |
New Shoots 10"-12" |
6/07 (358), 6/16 (557) | 6/07, 6/16 | 6/07, 6/16 | 6/16 |
Trace Bloom |
. | . | . | . |
Full Bloom (50% caps fallen) |
. | 6/28 | 6/28 | 6/28 |
post bloom |
6/28 (762) | . | . | . |
veraison |
8/23 (1958) | 8/23 | 8/23 | . |
2005 Estimated Date and Degree-Day Accumulation (Base 50F, from Jan. 1) for Various Vine Phenology Stages of Specific Grape Cultivars South Hero, VT Elevation 54 meters (Degree Days in Parentheses) |
||||
| Date | Vidal | Vignoles | Riesling |
Leon Millot |
Bud Swell |
. | 5/27 | . | . |
Bud Break |
5/27 (176) | . | . | . |
New Shoots 1/2"-1" |
. | . | 5/27 | 5/27 |
New Shoots 3"-5" |
. | . | . | . |
New Shoots 10"-12" |
6/16(554), 6/22 (625) | 6/16, 6/22 | 6/16, 6/22 | . |
Trace Bloom |
. | . | . | 6/16 |
Full Bloom (50% caps fallen) |
6/28 (767) | 6/28 | 6/28 | 6/22 |
post bloom |
. | . | . | 6/28 |
veraison |
8/29 (2056) | 8/29 | 8/29 | 8/29 |
Degree Day and other weather information received from Skybit E-Weather Service: http://www.skybit.com/
Click Here for Visual Criteria for Determining Phenlogy Stages
To compare Growing Degree Days and Grape Phenological Stages, please see the following webpage for the Lake Erie Region:
http://lenewa.netsync.net/public/PhenDate.htm
Please send comments and suggestions to: lorraine.berkett@uvm.edu
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