long-day plant


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long-day plant

[′lȯŋ ¦dā ‚plant]
(botany)
A plant that flowers in response to a long photoperiod.
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References in periodicals archive ?
Studies with the long-day plant Sinapis alba and the short-day plant Xanthium strumarium L.
Some crops are short-day plants, typically those grown in spring and fall, and some crops are long-day plants, which require more than 12 hours of light to flower.
Most summer flowering plants are long-day plants, requiring 14 hours or more of day length.
These are either short-day or long-day plants (Figure 7-9).
Long-day plants flower in the summer, short-day plants flower in early spring or fall, and day-neutral plants will flower under a variety of light conditions.