The first process by which water enters into the seed coat when a seed is placed in a suitable situation for germination is

Options

A. root pressure
B. absorption
C. osmosis
D. imbibition

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the first process by which water enters the seed coat when a seed is placed in a suitable environment for germination.

2. **Identifying the Options**: The options provided are:
- Root pressure
- Absorption
- Osmosis
- Imbibation

3. **Defining Imbibation**: Imbibation is the process of absorption of water by hydrophilic (water-loving) solid particles. This is a specific type of diffusion where water moves into the solid particles.

4. **Role of Imbibation in Germination**: Imbibation plays a crucial role in the germination of seeds. It helps in the absorption of water, which leads to the swelling of the seed and ultimately ruptures the seed coat.

5. **Conclusion**: Based on the definition and role of imbibation, the correct answer to the question is **imbibation**.

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