Vascular Cambium is essential for :-

Options

A. Parthenocarpy
B. Grafting
C. Cutting
D. Layering

Answer

### Step-by-Step Solution:

1. **Understanding Vascular Cambium**:
- Vascular cambium is a type of lateral meristem found in plants that is responsible for secondary growth. It is a ring-like structure that produces secondary xylem (wood) towards the inside (pith) and secondary phloem (bark) towards the outside (epidermis).

2. **Role in Secondary Growth**:
- The vascular cambium consists of actively dividing cells that contribute to the increase in the girth (circumference) of the plant. This process is essential for the overall growth and structural integrity of woody plants.

3. **Grafting Process**:
- Grafting is a method of vegetative propagation where two different parts of plants (the stock and the scion) are joined together. The stock is the plant that provides the root system, while the scion is the part that is grafted onto the stock.

4. **Importance of Vascular Cambium in Grafting**:
- For successful grafting, the vascular cambium of both the stock and the scion must be aligned and fused. This fusion allows for the exchange of nutrients and water between the two parts, enabling them to grow as a single plant.

5. **Conclusion**:
- Given the role of vascular cambium in facilitating the fusion during grafting and its essential function in secondary growth, the correct answer to the question "Vascular Cambium is essential for:" is **grafting**.