Short-Day Plants are Those That Flower Only When the Night

Question

Short-day plants are those that flower only when the night period of a plant is:
A)longer than a defined period
B)shorter than 12 hours
C)followed by short periods of light interruptions
D)less than that in summer
E)longer than 12 hours

Accepted Answer

Short-day plants require a night period longer than a critical length to induce flowering, meaning the night must be longer than a defined period.