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 = 56. We track GDD at http://agebb.missouri.edu/weather/reports/gddTable.asp and rate the phenology stages according to the Modified E-L System http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

 

N Norton E-L Stage 3 Wooly bud +/- green showing.
D Mars E-L Stage 3 Wooly bud +/- green showing.
D Concord E-L Stage 4 Budburst.
F Vivant E-L Stage 4 Budburst;leaf tips visible.
F Norton E-L Stage 4 Budburst.
F Vignoles E-L Stage 3-4 Wooly bud +/- green showing to Budburst.
F Chambourcin E-L Stage 3Wooly bud +/- green showing.
F Chardonel E-L Stage 4 Budburst.
F Vidal Blanc E-L Stage 3 Wooly bud +/- green showing.
F Traminette E-L Stage 2-3 Bud scales opening to Wooly bud +/- green showing.
F Cayuga White E-L Stage 3 Wooly bud +/- green showing.
R Norton E-L Stage 3 Wooly Bud +/- green showing.
R Catawba E-L Stage 3 Wooly bud +/- green showing.
R Seyval Blanc E-L Stage 3 Wooly bud +/- green showing.

 

 

 

 

 

 

 

 

 

 

W Chardonel E-L Stage 4 Budburst.
W Catawba E-L Stage 4 Budburst.

 

Genomics NC-6 E-L Stage 2 Bud scales opening.

Genomics Norton E-L Stage 2 Wooly bud +/- green showing.

MVEC Sunbelt E-L Stage 4 Budburst.
MVEC Sunbelt E-L Stage 4 Budburst.
MVEC Chambourcin E-L Stage 3 Wooly bud +/- green showing.