Phytochrome-mediated process is:

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(D) Phytochrome is a light-sensitive pigment that acts as a photoreceptor in plants.It plays a crucial role in various physiological processes includi

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All the above

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(D) Phytochrome is a light-sensitive pigment that acts as a photoreceptor in plants.It plays a crucial role in various physiological processes including:$1$. $Plastid \ orientation$: Phytochrome regulates the movement of chloroplasts within cells to optimize light absorption.$2$. $Flower \ induction$: It is the primary pigment involved in sensing photoperiod,which triggers flowering in many plants.$3$. $Bud \ dormancy$: Phytochrome helps in breaking or maintaining bud dormancy in response to seasonal light changes.Since all these processes are regulated by phytochrome,the correct answer is $D$.

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