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Manipal Medical Manipal Medical Solved Paper-2007

  • question_answer
    One set of a plant was grown at 12 hours day and 12 hours night period cycles and it flowered while in the other set night phase was interrupted by flash of light and it did not produce flower. Under which one of the following categories will you place this plant?

    A)  Long day       

    B)  Darkness neutral

    C)  Day neutral     

    D)  Short day

    Correct Answer: D

    Solution :

    The condition shows that the plant require photoperiod shorter than the critical day length. This plant needs uninterrupted dark period for flowering. Therefore, it is a short day plant and these do not flower if the dark period is interrupted with flashes of light.


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