Grape Phenology and GDD accumulation - What's happening in the field?

What's happening in the field?

At the Missouri State Fruit Experiment Station

Grape Phenology and GDD accumulation

by

GDD base 50 = 65 . We track GDD at http://agebb.missouri.edu/weather/reports/gddTable.asp and rate the phenology stages according to the Modified E-L System https://door.extension.wisc.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

Mars Demo E-L Stage 7 First leaf separated from shoot tip.
J x V Genomics E-L Stage 3-4. 3 Wooly bud ± green showing.
4 Budburst; leaf tips visible.
J 70 Genomics E-L Stage 3 Wooly bud ± green showing.
Concord Demo E-L Stage 9 2 to 3 leaves separated; shoots 2-4 cm long.
CH x CS Genomics E-L Stage 3 Wooly bud ± green showing.
Chardonel Foundation E-L Stage 3 Wooly bud ± green showing.
Chambourcin New Winery E-L Stage 2-3. 2 Bud scales opening.
3 Wooly bud ± green showing.
Chambourcin Foundation E-L Stage 2 Bud scales opening.
Cayuga White Foundation E-L Stage 3-4. 3 Wooly bud ± green showing.
4 Budburst; leaf tips visible.
Catawba Winery E-L Stage 9 2 to 3 leaves separated; shoots 2-4 cm long.
Catawba Research E-L Stage 4 Budburst; leaf tips visible.
Catawba MVEC E-L Stage 9 2 to 3 leaves separated; shoots 2-4 cm long
Vivant Foundation E-L Stage 7 First leaf separated from shoot tip.
Vignoles Foundation E-L Stage 3 Wooly bud ± green showing.
Vidal Blanc Foundation E-L Stage 2 Bud scales opening.
Traminette Foundation. E-L Stage 2 Bud scales opening.
Sunbelt MVEC E-L Stage 7-9. 7 First leaf separated from shoot tip. 9 2 to 3 leaves separated; shoots 2-4 cm long.
Seyval Blanc Research E-L Stage 4-7. 4 Budburst; leaf tips visible. 7 First leaf separated from shoot tip.
Orion Foundation E-L Stage 4 Budburst; leaf tips visible.
Norton Research E-L Stage 3 Wooly bud ± green showing.
Norton North E-L Stage 4 Budburst; leaf tips visible.
Norton New Winery E-L Stage 4 Budburst; leaf tips visible.
Norton Genomics E-L Stage 2-3. 2 Bud scales opening.
3 Wooly bud ± green showing.
Norton Foundation E-L Stage 4 Budburst; leaf tips visible.
NC-65 Genomics E-L Stage 2-3. 2 Bud scales opening.
3 Wooly bud ± green showing.
NC-6 Genomics E-L Stage 1-2. 1 Winter bud. 2 Bud scales opening.
NC-6 Foundation E-L Stage 2 Bud scales opening.