A Pigment concerned with both floral induction and seed germination is

Options

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

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 of flowering) and seed germination.

2. **Review the Options**: The options provided are:
- Florigen
- Plastocyanin
- Phytochrome
- Chlorophyll

3. **Analyze Each Option**:
- **Florigen**: This is a hormone that induces flowering in plants. However, it is not involved in seed germination. Therefore, this option is incorrect.
- **Plastocyanin**: This is an electron carrier involved in the electron transport chain during photosynthesis. It does not play a role in either flowering or seed germination. Thus, this option is also incorrect.
- **Phytochrome**: This is a blue-green pigment that acts as a photoreceptor. Phytochrome is known to be involved in light-dependent physiological processes, including both floral induction and seed germination. This makes it a strong candidate.
- **Chlorophyll**: This green pigment is primarily responsible for photosynthesis. It does not have a direct role in floral induction or seed germination, making this option incorrect.

4. **Select the Correct Answer**: After analyzing all options, we find that **Phytochrome** is the pigment that is involved in both floral induction and seed germination. Thus, the correct answer is **Phytochrome**.

### Final Answer:
The pigment concerned with both floral induction and seed germination is **Phytochrome**.

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