Differentiate between Phototropism and Photoperiodism.
(N/A)
| Phototropism | Photoperiodism |
| $(1)$ The tropic movements that occur in response to a unilateral external light stimulus are known as phototropism or heliotropism. | $(1)$ It is the phenomenon of the response of plants to the relative duration of light and darkness,primarily for flowering. |
| $(2)$ The direction of this movement is determined by the direction of the external light stimulus. | $(2)$ Based on the duration of light exposure,plants are categorized into long-day plants,short-day plants,and day-neutral plants. |
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