TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

GROWING DAY-DEGREE [1 record]

Record 1 2010-03-05

English

Subject field(s)
  • Metrology and Units of Measure
  • Atmospheric Physics
  • Plant and Crop Production
DEF

Difference between the daily mean temperature and a reference temperature, defined for a crop, accumulated over its growing season.

CONT

Degree-days for a given day represent the number of Celsius degrees that the mean temperature is above or below a given base. For example, ... Values above 5°C are frequently called growing degree-days, and are used in agriculture as an index of crop growth.

CONT

The growing degree day -sometimes called a heat unit- has become a useful indirect measure of the heat available for growth and development of corn and soybeans.

OBS

heat unit: Term used at the Canadian Grain Commission.

Key term(s)
  • growing degree-days
  • growing degree days
  • growing day-degree
  • day-degree
  • degree day
  • heat-unit

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique de l'atmosphère
  • Cultures (Agriculture)
DEF

Différence entre la température quotidienne moyenne et une température de référence, définie pour une culture, accumulée pendant sa saison de croissance.

CONT

Les degrés-jours d'une journée représentent l'écart négatif ou positif, en degrés Celsius, qui sépare la température moyenne d'une valeur de base donnée. Par exemple, [...] Les valeurs supérieures à 5 °C sont souvent appelées degrés-jours de croissance et servent, en agriculture, d'indice de croissance des récoltes.

OBS

degré-jour; unité thermique de croissance : Termes en usage à la Commission canadienne des grains.

Key term(s)
  • degré jour de croissance
  • degrés-jours de croissance
  • degrés jours de croissance

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Física de la atmósfera
  • Producción vegetal
DEF

Suma, durante el período de crecimiento de un cultivo, de las diferencias entre las temperaturas diarias y una temperatura de referencia.

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