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What's happening in the field?

At the Missouri State Fruit Experiment Station

Grape phenology and GDD accumulation

July 15, 2019 by Marilyn Odneal

GDD base 50 accumulation for today = 1623 http://agebb.missouri.edu/weather/reports/gddTable.aspĀ 

Phenology stages according to the Modified E-L System http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

1. N Norton E-L Stage 33 Berries still hard and green.
1. N Norton E-L Stage 33 Berries still hard and green.
2. G Norton E-L Stage 33 Berries still hard and green.
2. G Norton E-L Stage 33 Berries still hard and green.
3. G Cabernet Sauvignon E-L Stage 33 Berries still hard and green.
3. G Cabernet Sauvignon E-L Stage 33 Berries still hard and green.
4. MVEC Sunbelt E-L Stage 33 Berries still hard and green.
4. MVEC Sunbelt E-L Stage 33 Berries still hard and green.
5. MVEC Chambourcin E-L Stage 33 Berries still hard and green.
5. MVEC Chambourcin E-L Stage 33 Berries still hard and green.
6. W Catawba E-L Stage 32 - 33 Berries still hard and green.
6. W Catawba E-L Stage 32 – 33 Berries still hard and green.
7. NWV Chardonel E-L Stage 33 Berries still hard and green.
7. NWV Chardonel E-L Stage 33 Berries still hard and green.
8. NWV Chambourcin E-L Stage 33 Berries still hard and green.
8. NWV Chambourcin E-L Stage 33 Berries still hard and green.
9. R Seyval Blanc E-L Stage 34 Berries begin to soften.
9. R Seyval Blanc E-L Stage 34 Berries begin to soften.
10. R Catawba E-L Stage 33 Berries still hard and green.
10. R Catawba E-L Stage 33 Berries still hard and green.
11. R Norton E-L Stage 33 Berries still hard and green.
11. R Norton E-L Stage 33 Berries still hard and green.
12. F Norton E-L Stage 33 Berries still hard and green.
12. F Norton E-L Stage 33 Berries still hard and green.
13. F Vignoles E-L Stage 34 Berries begin to soften.
13. F Vignoles E-L Stage 34 Berries begin to soften.
14. F Chardonel E-L 33 Berries still hard and green.
14. F Chardonel E-L 33 Berries still hard and green.
15. F Vidal Blanc E-L Stage 33 Berries still hard and green.
15. F Vidal Blanc E-L Stage 33 Berries still hard and green.
16. F Traminette E-L Stage 33 Berries still hard and green.
16. F Traminette E-L Stage 33 Berries still hard and green.
17. F Cayuga White E-L Stage 34 Berries begin to soften.
17. F Cayuga White E-L Stage 34 Berries begin to soften.
18. D Concord E-L Stage 33 Berries still hard and green.
18. D Concord E-L Stage 33 Berries still hard and green.
19. D Vivant E-L Stage 33 Berries still hard and green.
19. D Vivant E-L Stage 33 Berries still hard and green.
20. D Mars E-L Stage 34 - 35 Berries begin to soften to Berries begin to colour and enlarge.
20. D Mars E-L Stage 34 – 35 Berries begin to soften to Berries begin to colour and enlarge.

Filed Under: Grapes, Phenology

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