Grafting is not possible in monocots because they

Options

A. Lack cambium
B. Are herbaceous
C. Have scattered vascular bundles
D. have parallel venation

Answer

### Step-by-Step Solution:

1. **Understanding Grafting**: Grafting is a horticultural technique where a scion (the upper part of a plant) is joined to a rootstock (the lower part). For successful grafting, the cambium layers of both parts must come into contact.

2. **Role of Cambium**: The cambium is a layer of tissue in plants that is responsible for secondary growth. It produces new cells that contribute to the thickness of the plant. In grafting, the cambium layers of the scion and rootstock must align and fuse for the graft to take.

3. **Monocots vs. Dicots**: Plants are classified into two main groups: monocots and dicots. Monocots (like grasses and lilies) typically have a different structure compared to dicots (like roses and oak trees). One key difference is that monocots generally lack a cambium layer.

4. **Conclusion**: Since monocots do not have cambium, the necessary contact and fusion that occurs during grafting cannot take place. Therefore, grafting is not possible in monocots.

5. **Final Answer**: Grafting is not possible in monocots because they lack cambium.