- growing degree-day
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a degree-day above 41°F (5°C), used in relation to plant growth. Cf. cooling degree-day, heating degree-day.
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Universalium. 2010.
growing degree-day
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Growing degree day — Growing degree days (GDD) are a heuristic tool in phenology. GDD are used by horticulturists and gardeners to predict the date that a flower will bloom or a crop reach maturity. In the absence of extreme conditions such as unseasonal drought or… … Wikipedia
growing degree-day — a degree day above 41°F (5°C), used in relation to plant growth. Cf. cooling degree day, heating degree day … Useful english dictionary
Degree day — A degree day is a measure of heating or cooling. Totalized degree days from an appropriate starting date are used to plan the planting of crops and management of pests and pest control timing. Weekly or monthly degree day figures may also be used … Wikipedia
degree-day — ̷ ̷ˈ ̷ ̷| ̷ ̷ noun : a unit that represents one degree of declination from a given point (as 65°) in the mean outdoor temperature of one day and is often used in measuring fuel requirements of buildings * * * /di gree day /, n. Engin. one degree … Useful english dictionary
degree-day — /di gree day /, n. Engin. one degree of departure, on a single day, of the daily mean temperature from a given standard temperature. Abbr.: dd Also, degree day. Cf. cooling degree day, growing degree day, heating degree day. [1925 1930] * * * … Universalium
cooling degree-day — a degree day above the standard temperature of 75°F (24°C), used in estimating the energy requirements for air conditioning and refrigeration. Cf. growing degree day, heating degree day. * * * … Universalium
heating degree-day — a degree day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption. Cf. cooling degree day, growing degree day. * * * … Universalium
cooling degree-day — a degree day above the standard temperature of 75°F (24°C), used in estimating the energy requirements for air conditioning and refrigeration. Cf. growing degree day, heating degree day … Useful english dictionary
heating degree-day — a degree day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption. Cf. cooling degree day, growing degree day … Useful english dictionary
Growing season — In agriculture, the growing season is the period of each year when crops can be grown. It is usually determined by climate and crop selection. Depending on the location, temperature, daylight hours (photoperiod), and rainfall, may all be critical … Wikipedia
