Definition of long-day in English:
(Of a plant) needing a long period of light each day to initiate flowering, which therefore happens naturally as the days lengthen in the spring.
- The genetic control of flowering has been extensively studied in Arabidopsis, a quantitative long-day plant that flowers faster under long days than short days.
- Cereals of temperate origin are typically long-day plants, and this causes heading during spring and early summer, so that the crop ripens towards the end of the growing season.
- In the long-day plant Arabidopsis, flowering is accelerated under photoperiods exceeding a critical daylength.
Definition of long-day in:
- US English dictionary
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