GDUs: Growing degree units which are calculated by the Barger Method, where {HEAD ~ the heat units} for {TAIL ~ a 24 h period} are calculated as GDUs=−50 
for
GDUs : Growing degree units which are calculated by the Barger Method , where { HEAD ~ the heat units } for { TAIL ~ a 24 h period } are calculated as GDUs=−50
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH