What's happening in the field?

At the Missouri State Fruit Experiment Station

Grape Phenology and GDD accumulation

by

GDD base 50 = 383. 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 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
D Mars E-L Stage 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
D Concord E-L Stage 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
F Vivant E-L Stage 15 8 leaves separated, shoot elongating rapidly; single flowers in compact groups

 

 

 

 

 

 

 

 

 

 

 

F Norton E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
F Vignoles E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
F Chambourcin E-L Stage 15-16 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups to
10 leaves separated
F Chardonel E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups

 

 

 

 

 

 

 

 

 

F Vidal Blanc E-L Stage 15-16 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
to 10 leaves separated
F Traminette E-L Stage 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
F Cayuga White E-L Stage 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
R Norton E-L Stage 13-15 6 leaves separated to 7 leaves separated to 8 leaves separated, shoot elongating rapidly; single flowers in compact groups
R Catawba E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
R Seyval Blanc E-L Stage 14-15 7 leaves separted to 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups
Winery Chardonel E-L Stage 15-16 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups to 10 leaves separated
Winery Catawba E-L Stage 15 8 leaves separated, shoot elongating rapidly;
single flowers in compact groups

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Genomics NC-6 E-L Stage 12 5 leaves separated; shoots about 10 cm long;
inflorescence clear
Genomics Norton E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly; single flowers in compact groups
MVEC Sunbelt E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly; single flowers in compact groups
MVEC Chambourcin E-L Stage 14-15 7 leaves separated to 8 leaves separated, shoot elongating rapidly; single flowers in compact groups