Growing-degree Day
Growing degree days (GDD), also called growing degree units (GDUs), are a heuristic tool in phenology. GDD are a measure of heat accumulation used by horticulturists, gardeners, and farmers to predict plant and pest development rates such as the date that a flower will bloom or a crop reach maturity.
Read more about Growing-degree Day: Introduction, GDD Calculation, Plant Development, Pest Control, Honeybees, Baselines
Famous quotes containing the word day:
“Behold, O God our shield, and look upon the face of thine anointed.
For a day in thy courts is better than a thousand. I had rather be a doorkeeper in the house of my God, than to dwell in the tents of wickedness.
For the Lord God is a sun and shield: the Lord will give grace and glory:”
—Bible: Hebrew Psalm LXXXIV (l. LXXXIV, 9–11)