Stock and scion are used in :

Options

A. Cutting
B. Grafting
C. layering
D. micropropagation

Answer

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- The question mentions "stock" and "scion." These are specific terms used in horticulture and plant propagation.

2. **Identifying the Process:**
- Stock and scion are used in the process of grafting. Grafting is a technique where tissues from one plant are inserted into those of another so that the two sets of vascular tissues may join together.

3. **Defining Grafting:**
- Grafting is a form of asexual reproduction that is performed artificially. It does not occur naturally in plants.

4. **Components of Grafting:**
- The "stock" refers to the root part of the plant, which provides the root system.
- The "scion" refers to the shoot part of the plant, which is typically chosen for its desirable traits such as flowers or fruits.

5. **Joining the Parts:**
- In grafting, the stock and scion are joined together, often using a band or tape to hold them in place until they grow together and form a new plant.

6. **Characteristics of the New Plant:**
- The resulting plant from grafting will exhibit characteristics from both the stock and the scion, combining traits from both parent plants.

7. **Conclusion:**
- Therefore, the correct answer to the question is that stock and scion are used in grafting.

**Final Answer:**
Stock and scion are used in grafting.

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