In flowering plants, the site of perception of light/dark duration is
A
Stem
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B
Leaves
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C
Shoot apex
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D
Floral meristem
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Solution
The correct option is B Leaves The response of plants to periods of day/night is termed as photoperiodism. The hormonal substance responsible for flowering is formed in the leaves, subsequently migrating to the shoot apices and modifying them into flowering apices. Photoperiodism helps in studying the response of flowering in various crop plants with respect to the duration of exposure to light.