TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

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... measure of the growth and development of plants and insects during the growing season.  2, fiche 1, Anglais, - growing%20degree%2Dday

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Growing Degree Days. The underlying idea is that development does not occur unless the temperature exceeds a certain minimum threshold value or base temperature. The base temperatures are determined through research and experimentation and are different for different organisms. It has been found that there are many other factors, which may influence the actual temperature the organism is experiencing or that may influence their growth and development. For instance it is possible that the organism may be experiencing a temperature a few degrees more or lesser than that recorded depending on weather it spends most of its time in the shade or under direct sunlight. Precipitation and the presence of weeds may also indirectly influence the growth and development of insects and plants. The fertility and nutrient content of the soil is directly related to the growth rate of insects and plants. In light of these many factors and some other scientific considerations a base temperature of 50 degrees Fahrenheit is considered acceptable for all plants and insects.  2, fiche 1, Anglais, - growing%20degree%2Dday

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There are three main methods of calculating the GDD: a) Simple Method ... b) Modified Growing Degree Days ... c) Sine Wave Method ...  2, fiche 1, Anglais, - growing%20degree%2Dday

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Il faudrait en moyenne de 670 à 700 degrés-jours de croissance (DJC > 5 °C) pour que l'épinette blanche produise des graines pouvant remplir les trois quarts des cavités embryonnaires (seuil de maturation propice à la germination).  2, fiche 1, Français, - degr%C3%A9%2Djour%20de%20croissance

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Les DJC servent à représenter la période de croissance des plantes fourragères vivaces [...] tandis que les degrés-jours de croissance effectifs (DJCE) servent plus spécifiquement à représenter la période de croissance des petites céréales du printemps [...]  3, fiche 1, Français, - degr%C3%A9%2Djour%20de%20croissance

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

Difference between the daily mean temperature and a reference temperature, defined for a crop, accumulated over its growing season.  8, fiche 2, Anglais, - growing%20degree%2Dday

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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.  9, fiche 2, Anglais, - growing%20degree%2Dday

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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.  6, fiche 2, Anglais, - growing%20degree%2Dday

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heat unit: Term used at the Canadian Grain Commission.  10, fiche 2, Anglais, - growing%20degree%2Dday

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Différence entre la température quotidienne moyenne et une température de référence, définie pour une culture, accumulée pendant sa saison de croissance.  5, fiche 2, Français, - degr%C3%A9%2Djour%20de%20croissance

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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.  6, fiche 2, Français, - degr%C3%A9%2Djour%20de%20croissance

Record number: 2, Textual support number: 1 OBS

degré-jour; unité thermique de croissance : Termes en usage à la Commission canadienne des grains.  7, fiche 2, Français, - degr%C3%A9%2Djour%20de%20croissance

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 DEF

Suma, durante el período de crecimiento de un cultivo, de las diferencias entre las temperaturas diarias y una temperatura de referencia.  1, fiche 2, Espagnol, - d%C3%ADa%2Dgrado%20de%20crecimiento