Bakanae fungal disease is associated with the discovery of

Options

A. 2 , 4 - D
B. GA
C. IAA
D. ABA

Answer

**Step-by-Step Solution:**

1. **Understanding Bakanae Disease**: Bakanae disease, also known as the "foolish seedling disease," primarily affects rice plants. It is caused by the fungus *Gibberella fujikuroi*.

2. **Historical Context**: The disease was first identified in the 1930s and is significant in the study of plant hormones due to its association with the effects of certain compounds on plant growth.

3. **Identifying the Options**: The question provides four options related to plant hormones:
- **Option 1**: 2,4-Dichlorophenoxyacetic acid (2,4-D) - a herbicide.
- **Option 2**: Gibberellic Acid - a plant hormone that promotes growth.
- **Option 3**: Indole-3-Acetic Acid (IAA) - a form of auxin.
- **Option 4**: Abscisic Acid - a plant hormone involved in stress responses.

4. **Analyzing the Correct Answer**: Since Bakanae disease is associated with the discovery of Gibberellic Acid, which was first linked to the symptoms of this disease, the correct answer is **Option 2: Gibberellic Acid**.

5. **Conclusion**: Therefore, the Bakanae fungal disease is associated with the discovery of Gibberellic Acid, highlighting the relationship between the disease and plant growth regulation.

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