A Pigment concerned with both floral induction and seed germination is

Options

A. Florigen
B. Chlorophyll
C. Plastocyanin
D. Phytochrome

Answer

To solve the question regarding the pigment concerned with both floral induction and seed germination, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a pigment that plays a role in both floral induction (the process that makes a plant competent to develop flowers) and seed germination (the process by which a seed develops into a new plant).

2. **Analyze the Options**:
- **Florigen**: A plant hormone that promotes flowering but is not a pigment.
- **Chlorophyll**: A green pigment essential for photosynthesis, not directly involved in floral induction or seed germination.
- **Plastocyanin**: A copper-containing protein involved in photosynthesis, not specifically related to floral induction or seed germination.
- **Phytochrome**: A photoreceptor pigment that is involved in various light-dependent processes, including both floral induction and seed germination.

3. **Identify the Correct Answer**: Based on the analysis, phytochrome is the only option that is a pigment and is involved in both processes mentioned in the question.

4. **Conclusion**: The correct answer is **Phytochrome** (Option D).