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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2014

  • question_answer
    If a plant produces flowers when exposed only to alternating periods of 5 hours light and 3 F hours dark, in a 24-hour cycle, then the plant should be a

    A)  short-long day plant

    B)  short day plant

    C)  day neutral plant

    D)  long day plant.

    Correct Answer: D

    Solution :

    : Long day plants flower in photoperiod more than critical day length, e.g., Hyoscyamus niger (henbane), radish, spinach, Plantago, etc. LDPs can flower under alternate short  cycles of light and darkness.


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