Single -seeded fruit develops from

Options

A. Tricarpellary ovary
B. Bicarpellary syncarpous ovary
C. Multicarpellary syncarpous ovary
D. Pistil having single ovule

Answer

To determine what a single-seeded fruit develops from, we can analyze the options provided:

1. **Understanding the Terminology**:
- A **pistil** is the female reproductive part of a flower, which consists of the ovary, style, and stigma.
- An **ovule** is the structure within the ovary that develops into a seed after fertilization.

2. **Analyzing the Options**:
- **Tricarpillary ovary**: This type of ovary has three carpels. If fertilized, it can produce three seeds.
- **Bicarpillary syncarpous ovary**: This type has two fused carpels. If fertilized, it can produce two seeds.
- **Multicarpillary syncarpous ovary**: This type has multiple fused carpels. If fertilized, it can produce multiple seeds (n seeds).
- **Pistil having a single ovule**: If the pistil contains only one ovule, it will develop into a single seed after fertilization.

3. **Conclusion**:
- The only option that leads to the development of a single-seeded fruit is the **pistil having a single ovule**. Therefore, the correct answer is **Option D**.

### Final Answer:
**Single-seeded fruit develops from a pistil having a single ovule (Option D).**