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LONG DAY [1 record]

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Record 1 2002-01-08

English

Subject field(s)
  • Botany
  • Plant Breeding
  • Plant Biology
CONT

Some plants are long day, requiring 14 - 16 hours of sunlight per day to flower. Others are short day requiring only 8 - 9 hours. Others are day neutral and unaffected by day length. Photoperiosim also effects the breeding cycles of farm livestock.

OBS

Long-day plants flower only when exposed to day lengths longer than their critical length. These are usually late spring and early summer flowers.

French

Domaine(s)
  • Botanique
  • Amélioration végétale
  • Biologie végétale
CONT

La durée du jour commande le rythme sexuel de beaucoup d'êtres vivants : certaines plantes ne fleurissent qu'en jours courts, d'autres seulement en jours longs selon leur sensibilité à la photopériode.

Spanish

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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