Vegetative propagation in Pistia occurs by

Options

A. Stolen
B. Offset
C. Runner
D. Sucker

Answer

**Step-by-Step Solution:**

1. **Understanding Vegetative Propagation**:
- Vegetative propagation is a type of asexual reproduction in plants where a new plant develops from a part of the parent plant. This can involve various structures such as stems, roots, or leaves.

2. **Identifying the Plant**:
- The question specifically asks about vegetative propagation in *Pistia*, which is an aquatic plant commonly known as water cabbage or water lettuce.

3. **Identifying the Structure Used**:
- In *Pistia*, vegetative propagation occurs through a specific structure known as the "offset."
- An offset is a sub-aerial modified stem that grows horizontally and can produce roots and shoots.

4. **Evaluating the Options**:
- The options provided include:
- A) Stolen
- B) Offset
- C) Runner
- D) Sucker
- Analyzing each:
- **Stolen**: Also known as a runner, it grows along the ground but is not the primary structure for *Pistia*.
- **Offset**: This is the correct answer as it is the modified stem responsible for vegetative propagation in *Pistia*.
- **Runner**: Another term for stolen, thus incorrect.
- **Sucker**: Refers to a shoot that arises from the base of a larger plant, also incorrect for *Pistia*.

5. **Conclusion**:
- The correct answer is **B) Offset**, as it is the structure used for vegetative propagation in *Pistia*.

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