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MHT CET Medical202624 April 2026Evening ShiftBiologyPlant - Growth and DevelopmentActual

Which of the following plants require longer duration of light than the critical photoperiod, for flowering?

Options

  1. AChrysanthemum .
  2. BWheat.
  3. CXanthium .
  4. DCucumber.

Correct answer

B. Wheat.

Step-by-step solution

Plants that require a longer duration of light than the critical photoperiod for flowering are called Long Day Plants (LDP). Wheat is a Long Day Plant. Chrysanthemum and Xanthium are Short Day Plants (SDP), which require a shorter duration of light than the critical photoperiod. Cucumber is a Day Neutral Plant (DNP), where flowering is not dependent on the photoperiod. Answer: Wheat.

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