GDD base 50 accumulated since April 1 = 3853 (+284 departure from normal) at Mountain Grove
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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- N Trainette E-L Stage 45
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- N Vignoles E-L Stage 46
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- N Concord E-L Stage 45
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- N Sunbelt E-L Stage 47
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- N Norton E-L Stage 44
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- MVEC Chambourcin E-L Stage 46
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- W Catawba E-L Stage 47
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- R Cayuga White E-L Stage 46
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- R Vidal Blanc E-L Stage 45
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- R Seyval Blanc E-L Stage 45
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- R Catawba E-L Stage 47
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- L Chardonel E-L Stage 46
