Veriation of response to geotropism is found in the floral stalk of

Options

A. Sunflower
B. Groundnut
C. Poppy
D. Both B and C.

Answer

To solve the question regarding the variation of response to geotropism found in the floral stalk of certain plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Geotropism**:
- Geotropism is the growth response of a plant to gravity. Roots typically grow downward (positive geotropism), while stems grow upward (negative geotropism).

2. **Analyze the Options**:
- The options provided are:
1. Sunflower
2. Groundnut
3. Poppy
4. Both pea and seed

3. **Evaluate Each Option**:
- **Sunflower**: Known for phototropism, where it grows towards light. It does not primarily exhibit geotropism in its floral stalk.
- **Groundnut**: The floral stalk of the groundnut is curved and grows downward, indicating a positive geotropic response. This is a strong candidate.
- **Poppy**: Similar to sunflowers, poppies are also sensitive to light (phototropism) and do not show significant geotropic response in their floral stalk.
- **Both pea and seed**: While peas can exhibit some geotropic response, they are not specifically known for a variation in response to geotropism in their floral stalk.

4. **Conclusion**:
- Based on the analysis, the correct answer is **Groundnut**, as it shows a clear variation of response to geotropism with its floral stalk curving downward due to gravitational pull.

### Final Answer:
The variation of response to geotropism is found in the floral stalk of **Groundnut**.