What's happening in the field?

At the Missouri State Fruit Experiment Station

Grape Phenology and GDD accumulation

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GDD base 50= 166. We track GDD at http://agebb.missouri.edu/weather/reports/gddTable.asp and rate the phenology stages according to the Modified E-L atages according to the Modified E-L Ststem https://door.extension.wisc.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

 

N Norton E-L Stage 11 4 leaves separated.
D Mars E-L Stage 9-11 2 to 3 leaves separated; shoots 2-4 cm long to 4 leaves separated..
D Concord E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear.
F Vivant E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear.
F Norton E-L Stage 7-9 First leaf separated from shoot tip to 2 to 3 leaves separated; shoots 2-4 cm long.
F Vignoles E-L Stage 9 2 to 3 leaves separated; shoots; 2-4 cm long.
F Chambourcin Stage E-L 9-12 2 to 3 leaves separated; shoots 2-4 cm long to 5 leaves separated; shoots about 10 cm long; inflorescence clear.
F Chardonel E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F Vidal Blanc E-L Stage 7-9 First leaf separated from shoot tip to 2 to 3 leaves separated; shoots 2-4 cm long.
F Traminette E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear.
F Cayuga White E-L Stage 11 4 leaves separated.
R Norton E-L Stage 9-12 2 to 3 leaves separated; shoots 2-4 cm long to 5 leaves separated; shoots about 10 cm long; inflorescence clear.

 

 

 

 

 

 

 

 

 

 

R Catawba E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear
R Seyval Blanc E-L Stage 7-9 First leaf separated from shoot tip to 2 to 3 leaves separated; shoots 2-4 cm long
W Chardonel E-L Stage 12 5 leaves separated; shoots about 10 cm long; inflorescence clear.
W Catawba E-L Stage 14 7 leaves separated.

 

 

 

 

 

 

 

 

 

Genomics NC-6 E-L Stage 9 2 to 3 leaves separated; shoots 2-4 cm long.
Genomics Norton E-L Stage 11 4 leaves separated.
MVEC Sunbelt E-L Stage 11-12 4 leaves separated to 5 leaves separated; shoots about 10 cm long; inflorescence clear.
MVEC Chambourcin E-L Stage 9-12 2 to 3 leaves separated; shoots 2-4 cm long to 5 leaves separated; shoots about 10 cm long; inflorescence clear.