Grafting in monocots is rarely successful because

Options

A. monocots have closed vascular cambium
B. monocots are without cambium
C. both (1) and (2)
D. both wrong

Answer

### Step-by-Step Solution:

1. **Understanding Grafting**: Grafting is a horticultural technique where a scion (a piece of a plant with desired traits) is attached to a stock (the root system or main body of another plant). The success of grafting depends on the compatibility of the two plants involved.

2. **Identifying Plant Types**: There are two main categories of flowering plants: dicots and monocots. Dicots typically have a vascular cambium, which is a layer of actively dividing cells that allows for the growth and fusion of the scion and stock.

3. **Vascular Structure in Monocots**: Monocots, such as grasses and lilies, generally lack a vascular cambium. Their vascular bundles are scattered throughout the stem rather than arranged in a ring, which means they do not have the same capacity for secondary growth as dicots.

4. **Importance of Cambium in Grafting**: For grafting to be successful, the cambium layers of both the scion and stock must be aligned and able to grow together. The cambium is responsible for the production of new cells that will help the two plants fuse together.

5. **Conclusion**: Since monocots do not have a vascular cambium, they lack the necessary actively dividing cells required for successful grafting. Therefore, grafting in monocots is rarely successful.

### Final Answer:
Grafting in monocots is rarely successful because monocots lack a vascular cambium, which is essential for the fusion of the scion and stock.

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