To stage long-day plants so they will produce blooms for a flower show, what can a greenhouse manager provide to the plants to prevent flowering?
A) A long, uninterrupted period of darkness
B) A period of daylight interrupted by a dark period
C) A period of daylight interrupted by a prolonged period of red light
D) A period of darkness interrupted by a period of far-red light
E) A period of daylight interrupted by a brief period of red light
Correct Answer:
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