Q31 / 200 · NEET 2021 · Botany

The site of perception of light in plants during photoperiodism is:

  • A
    Shoot apex
  • B
    Stem
  • C
    Axillary bud
  • Correct answer
    D
    Leaf

Solution

The site of perception of light/dark duration is the leaves. It has been hypothesised that there is a hypothetical hormonal substance(s) that is responsible for the flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.

Hence, the correct answer is option: 'D'.

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