Photoperiodism
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<plantfyi-glossary slug="photoperiodism"></plantfyi-glossary>Definition
A plant's response to the relative length of day and night, controlling flowering, bulb formation, and dormancy. Long-day plants (spinach) flower when nights are short; short-day plants (chrysanthemum) flower when nights are long.
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See how the concept of "Photoperiodism" applies across different plant species.