Which of the following is not a function of gibberellic acid?

Options

A. Bolting
B. Delayed senescence
C. Seed germination
D. Ripening

Answer

To determine which of the following is not a function of gibberellic acid, we need to analyze the functions associated with gibberellic acid (GA) and compare them with the options provided.

### Step-by-Step Solution:

1. **Understand Gibberellic Acid**: Gibberellic acid is a plant growth regulator (PGR) that plays a crucial role in various developmental processes in plants.

2. **Identify Functions of Gibberellic Acid**:
- **Cell Elongation**: GA promotes the elongation of plant cells, which is essential for growth.
- **Seed Germination**: GA is involved in breaking dormancy and promoting the germination of seeds.
- **Bolting**: This is the process where a plant rapidly grows a flower stalk, which is also promoted by GA.
- **Delaying Senescence**: GA helps delay aging in plants, which means it can prolong the life of leaves and other plant parts.

3. **Examine the Options**: The options given typically include functions associated with plant growth regulators. We need to identify which one is not related to gibberellic acid.

4. **Analyze Each Option**:
- **Bolting**: This is a function of gibberellic acid. (True)
- **Delayed Senescence**: This is also a function of gibberellic acid. (True)
- **Seed Germination**: This is a function of gibberellic acid. (True)
- **Ripening**: This is primarily associated with ethylene, not gibberellic acid. (False)

5. **Conclusion**: The option that is not a function of gibberellic acid is **Ripening**.

### Final Answer:
The function that is not associated with gibberellic acid is **Ripening**.

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