GDD base 50 accumulated since April 1 = 32 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 Delaware seemed to be the farthest along with some wooly buds - so I had better get those pruned asap. Others mostly with bud scales opening. … [Read more...] about Grape phenology and GDD accumulation
Archives for April 2014
We planted Valvin Muscat grapes on a C3309 rootstock in 2011 and they bore a small, partial crop in 2013. This year will be their fourth growing season. Primary bud mortality of 44% was determined today using a 100 bud sample taken from the two rows. We experienced temperature as low as -8 degrees Fahrenheit in January of 2014. … [Read more...] about Primary bud mortality of Valvin Muscat
GDD base 50 accumulated since April 1 = 0 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 All grape cultivars in E-L stages 1 (winter bud) or 2 (bud scales opening). … [Read more...] about Grape phenology and GDD accumulation