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EAMCET Medical EAMCET Medical Solved Paper-2003

  • question_answer
    The photoperiodic cycles of 6 hours of dark period and 18 hours of light period induce flower formation in :

    A)  Xunthium                          

    B)  Tobacco

    C)  Soybean                            

    D)  Beta

    Correct Answer: D

    Solution :

    Long day plant require a longer day light period (Usually 14-18 hours) in a 24 hours cycle for subsequent flowering, e.g., Beta vulgaris (sugar beet), Spinacea (spinach). Hyoscyamus niger (henbane) etc. These are also knowr as short night plants because they require only short night (usually 6-8 hours).


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