To prevent seed-borne diseases, the seeds must be

Options

A. sown at right depth
B. spaced at right intervals
C. sown in highly wet soil
D. treated with fungicide solutions.

Explanation

To prevent seed-borne diseases, the seeds must be treated with fungicide solution. Here’s a step-by-step breakdown of the solution:

1. **Understanding Seed-Borne Diseases**: Seed-borne diseases are infections that are transmitted through seeds. These diseases can severely affect crop growth and yield.

2. **Importance of Treatment**: To prevent these diseases, it is crucial to treat the seeds before planting. This treatment helps in eliminating pathogens that may be present on or within the seeds.

3. **Fungicide Solution**: The most effective method to prevent seed-borne diseases is to treat the seeds with a fungicide solution. Fungicides are chemicals that kill or inhibit the growth of fungi, which are often responsible for these diseases.

4. **Application of Fungicide**: The seeds should be soaked or coated with the fungicide solution before planting. This creates a protective barrier around the seeds, preventing the growth of fungi and other pathogens.

5. **Benefits of Treatment**: By treating the seeds with fungicide, the likelihood of disease occurrence is significantly reduced, leading to healthier plants and better crop yields.

6. **Conclusion**: Therefore, to prevent seed-borne diseases, the correct action is to treat the seeds with a fungicide solution.