Category Archives: Phenology

Grape phenology and GDD accumulation

GDD base 50 accumulated since April 1 = 89 http://agebb.missouri.edu/weather/reports/gddTable.asp Phenology stages according to the Modified E-L system http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf Most grapes were at the wooly bud stage. The cultivars furthest along included Delaware, Valvin Muscat and Concord since they were …

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Grape phenology and GDD accumulation

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 …

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Grape phenology and GDD accumulation

We have some more Catawba, Chambourcin and a few Norton to harvest yet. GDD base 50 accumulated since April 1 = 3404 http://agebb.missouri.edu/weather/reports/gddTable.asp Phenology stages according to the Modified E-L system http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf

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