Select the correct option w.r.t. nutrient content in maize which develops resistance to maize stem bofers.

Options

A. Low nitrogen and high aspartic acid and sugar
B. Low sugar and high aspartic acid and nitrogen
C. Low nitrogen, sugar and high aspartic acid
D. High nitrogen, sugar and low aspartic acid

Answer

To determine the correct nutrient content in maize that develops resistance to maize stem borers, we need to analyze the relationship between the nutrients and the survival of the maize stem borers, specifically the species Busseola fusca.

### Step-by-Step Solution:

1. **Understanding the Problem**:
- We need to find out which nutrient composition in maize helps in resisting maize stem borers. The key nutrients to consider are nitrogen, sugar, and aspartic acid.

2. **Analyzing the Nutrients**:
- **Nitrogen**: High levels of nitrogen are generally favorable for the growth of many pests, including maize stem borers. Therefore, low nitrogen levels may help in reducing their survival.
- **Sugar**: Similar to nitrogen, high sugar content can attract pests and support their growth and reproduction. Thus, low sugar levels are preferable for resistance.
- **Aspartic Acid**: High levels of aspartic acid can be detrimental to the survival of maize stem borers. If aspartic acid is abundant, it can lead to the death of these pests.

3. **Evaluating the Options**:
- We need to evaluate the provided options based on the above analysis:
- **Option 1**: Low nitrogen - This is good, but we need to check the other components.
- **Option 2**: High aspartic acid - This is beneficial as it can kill the pests.
- **Option 3**: High sugar - This is unfavorable as it supports pest survival.
- **Option 4**: Low nitrogen, low sugar, and high aspartic acid - This combination is ideal as it limits the nutrients that support the pests and increases the likelihood of their death.

4. **Choosing the Correct Option**:
- Based on the analysis, the best nutrient composition for maize to resist stem borers is **low nitrogen, low sugar, and high aspartic acid**. This combination will inhibit the growth and reproduction of maize stem borers effectively.

5. **Conclusion**:
- The correct option is the one that states low nitrogen, low sugar, and high aspartic acid.