(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.
（植物）需要长日照（以利开花）的
Example sentencesExamples
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.
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.
In the long-day plant Arabidopsis, flowering is accelerated under photoperiods exceeding a critical daylength.
Arabidopsis is classified as a facultative long-day plant, whereas maize is originally a short-day one.
In Arabidopsis thaliana and other long-day rosette plants, it has been shown that photoperiodic control of stem elongation is mediated by GAs.
It is well known that a long-day plant can be induced to flower if the long night is interrupted by a short period of light.
Definition of long-day in US English:
long-day
adjectiveˈlôNGˌdā
(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.
（植物）需要长日照（以利开花）的
Example sentencesExamples
It is well known that a long-day plant can be induced to flower if the long night is interrupted by a short period of light.
Arabidopsis is classified as a facultative long-day plant, whereas maize is originally a short-day one.
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.
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.
In Arabidopsis thaliana and other long-day rosette plants, it has been shown that photoperiodic control of stem elongation is mediated by GAs.