Harvest is finally complete! GDD base 50 accumulated since April 1 = 3435 (October 31) http://agebb.missouri.edu/weather/reports/gddTable.asp This is -144 GGD base 50 from average. Phenology recorded and photographed on November 4. Phenology stages according to the Modified E-L system http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf A quick … [Read more...] about Grape phenology and GDD accumulation