Which tissue is required to be present in between stock and scion during grafting?

Options

A. Xylem
B. Phloem
C. Meristem
D. Parenchyma

Answer

### Step-by-Step Solution:

1. **Understanding Grafting**: Grafting is a horticultural technique where tissues from one plant (the scion) are inserted into the tissues of another plant (the stock or rootstock) to grow together as one plant.

2. **Identifying Stock and Scion**:
- **Stock**: This is the lower part of the graft, typically consisting of the root system or the stem of a plant.
- **Scion**: This is the upper part of the graft, which is usually a stem or branch that is desired for propagation.

3. **Determining the Required Tissue**:
- For successful grafting, a specific type of tissue must be present between the stock and scion to facilitate the union and growth of the two parts.
- The tissue that plays a crucial role in this process is the **meristematic tissue**.

4. **Role of Meristematic Tissue**:
- Meristematic tissue consists of undifferentiated cells that are capable of rapid division and growth.
- This tissue allows for the formation of new cells, which is essential for the healing and integration of the grafted parts.

5. **Conclusion**: The tissue required to be present between the stock and scion during grafting is **meristematic tissue**.