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GDD [2 records]
Record 1 - internal organization data 2017-04-12
Record 1, English
Record 1, Subject field(s)
- Plant Biology
- Grain Growing
Record 1, Main entry term, English
- silk stage
1, record 1, English, silk%20stage
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Most hybrids require about 1100-1200 GDD [growing degree day] to develop from silk stage to physiological maturity(hybrid maturity differences in development time occur primarily from emergence to silking, not from silking to maturity). 2, record 1, English, - silk%20stage
Record number: 1, Textual support number: 2 CONT
Corn planted under plastic mulch or floating row covers is nearing the silk stage in the southern part of the state, while early corn planted without plastic is now reaching the whorl to pretassel stage. 3, record 1, English, - silk%20stage
Record 1, French
Record 1, Domaine(s)
- Biologie végétale
- Culture des céréales
Record 1, Main entry term, French
- phase de la formation des aigrettes et de la pollinisation
1, record 1, French, phase%20de%20la%20formation%20des%20aigrettes%20et%20de%20la%20pollinisation
proposal, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
PHASE II : Formation des aigrettes et pollinisation. La formation des aigrettes se produit environ 40 à 70 jours après l'émergence de la plante pour les variétés de 90 à 130 jours. L'aigrette (la fleur) émerge du verticille des feuilles un ou deux jours avant qu'elle ne commence à perdre le pollen. La perte de pollen commence deux à trois jours avant que la soie n'émerge de l'extrémité de l'épi et continue pendant cinq à huit jours. Si les conditions sont favorables, toutes les soies émergent dans les trois à cinq jours et la plupart d'entre elles sont pollinisées le premier jour. Chaque soie est reliée à un ovule (un grain potentiel). Lorsqu'un grain de pollen se pose sur une soie, il en sort un tube de pollen qui va rejoindre le cœur de la soie et fertilise l'ovule situé à l'autre extrémité en quelques heures. La pénurie de pollen présente rarement un problème, 20 000 à 50 000 grains de pollen étant produits par soie. 2, record 1, French, - phase%20de%20la%20formation%20des%20aigrettes%20et%20de%20la%20pollinisation
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-03-09
Record 2, English
Record 2, Subject field(s)
- Metrology and Units of Measure
- Meteorological Forecasting, Data Measurement and Analysis
- Plant Biology
- Animal Biology
Record 2, Main entry term, English
- growing degree-day
1, record 2, English, growing%20degree%2Dday
correct
Record 2, Abbreviations, English
- GDD 1, record 2, English, GDD
correct
Record 2, Synonyms, English
- growing degree day 2, record 2, English, growing%20degree%20day
correct
- GDD 2, record 2, English, GDD
correct
- GDD 2, record 2, English, GDD
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
... measure of the growth and development of plants and insects during the growing season. 2, record 2, English, - growing%20degree%2Dday
Record number: 2, Textual support number: 1 CONT
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, record 2, English, - growing%20degree%2Dday
Record number: 2, Textual support number: 1 OBS
There are three main methods of calculating the GDD : a) Simple Method... b) Modified Growing Degree Days... c) Sine Wave Method... 2, record 2, English, - growing%20degree%2Dday
Record 2, Key term(s)
- growing degree-days
- growing degree days
Record 2, French
Record 2, Domaine(s)
- Unités de mesure et métrologie
- Prévisions météorologiques et mesure et analyse des données
- Biologie végétale
- Biologie animale
Record 2, Main entry term, French
- degré-jour de croissance
1, record 2, French, degr%C3%A9%2Djour%20de%20croissance
correct, masculine noun
Record 2, Abbreviations, French
- DJC 1, record 2, French, DJC
correct, masculine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, 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, record 2, French, - degr%C3%A9%2Djour%20de%20croissance
Record number: 2, Textual support number: 2 CONT
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, record 2, French, - degr%C3%A9%2Djour%20de%20croissance
Record 2, Key term(s)
- degrés-jours de croissance
- degré jour de croissance
- degrés jours de croissance
Record 2, Spanish
Record 2, Textual support, Spanish
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