Which character of cotton leads to nonattraction of boll worms ?

Options

A. High aspartic acid
B. Smooth leaves and necter less
C. Low sugar content
D. Thick stem

Answer

To determine which character of cotton leads to non-attraction of bollworms, we can analyze the given options step by step:

### Step-by-Step Solution:

1. **Understanding Bollworms**: Begin by recognizing that bollworms are pests that specifically target cotton plants. They can cause significant damage by feeding on the cotton bolls.

2. **Analyzing the Options**:
- **Option A: Highest Parietic Acid**: While parietic acid may have some role in plant defense, it is not specifically known for preventing bollworm attraction.
- **Option B: Smooth Leaves and Nectarless**: Smooth leaves can deter pests, and nectarless plants do not produce nectar that attracts insects. This combination makes this option a strong candidate for non-attraction of bollworms.
- **Option C: Low Sugar Content**: Low sugar content may not directly correlate with non-attraction, as bollworms are more influenced by physical characteristics of the plant rather than sugar levels.
- **Option D: Thick Stem**: A thick stem may provide some structural defense but does not directly prevent attraction by bollworms.

3. **Conclusion**: After evaluating all options, the character that leads to non-attraction of bollworms is **smooth leaves and nectarless** (Option B). This characteristic helps in reducing the likelihood of bollworm infestation.

### Final Answer:
The character of cotton that leads to non-attraction of bollworms is **smooth leaves and nectarless**.

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