What's happening in the field?

At the Missouri State Fruit Experiment Station

Grape Phenology and GDD accumulation

by

GDD base 50 = 3153 . 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 

Vivant  F E-L Stage 41 After harvest; cane maturation complete

Vignoles F E-L Stage 41 After harvest; cane maturation complete

Chardonel F E-L Stage 41 After harvest; cane maturation complete

Vidal Blanc F E-L Stage 41 After harvest; cane maturation complete

Traminette F E-L Stage 41 After harvest; cane maturation complete

Cayuga White F E-L Stage 41 After harvest; cane maturation complete

Seyval Blanc R E-L Stage 41 After harvest; cane maturation complete

Chardonel W E-L Stage 41 After harvest; cane maturation complete

NC-6 G E-L Stage 34 Berries begin to soften;
Sugar starts increasing
Chambourcin MVEC E-L Stage 37 Berries not quite ripe
Sunbelt MVEC E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe
Mars Demo E-L Stage 37-38 Berries not quite ripe to Berries harvest-ripe
Concord Demo E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe
Chambourcin F E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe
Norton F E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe
Norton R E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe
Catawba W E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Catawba R E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe

 

Norton N E-L Stage 36 -37 Berries with intermediate sugar values to 37 Berries not quite ripe