In a short-day plant like cocklebur,which has a critical day length of 15 hours,flowering could be induced by _______ hours of light alternating with _______.
A) 12;12 hours of darkness
B) 16;8 hours of darkness
C) 14;8 hours of darkness
D) 8;8 hours of darkness
E) 15;9 hours of darkness,interrupted by one short burst of white light
Correct Answer:
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