________ is a bacterial disease that affects crops. In this disease, the xylem tissue of a plant, which is responsible for the transportation of water in the plant, gets blocked.

Options

A. Leaf curl
B. Wilting
C. Rust
D. Blight of potato

Answer

**Step-by-Step Solution:**

1. **Identify the Disease**: The question asks for a bacterial disease that affects crops and blocks the xylem tissue, which is responsible for water transportation in plants.

2. **Consider the Options**: The options provided include:
- Leaf curls (caused by a virus)
- Wilting (caused by bacteria)
- Rusting (caused by fungal parasites)
- Blight of potato (caused by fungus)

3. **Analyze Each Option**:
- **Leaf Curls**: This disease is caused by a virus known as Gemini virus and affects cotton plants. Therefore, it is not the correct answer.
- **Wilting**: This condition is characterized by the drooping of crops and is primarily caused by bacteria. It leads to the blockage of xylem tissue, preventing adequate water transport, which aligns with the question's description.
- **Rusting**: This disease is caused by fungal parasites and results in spots on plants. It does not relate to xylem blockage.
- **Blight of Potato**: This disease is also caused by fungus and results in black or brown spots on potato plants. It does not involve bacterial infection.

4. **Conclusion**: Based on the analysis, the correct answer is "Wilting," as it is a bacterial disease that affects crops and causes blockage in the xylem tissue.

**Final Answer**: Wilting

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