Which potato species is nematode resistant?

Options

A. Solanum spegazzini
B. S. demissum
C. S. acaule
D. S. stoloniferum

Answer

**Step-by-Step Solution:**

1. **Understand the Problem**: The question asks which potato species is resistant to nematodes. Nematodes are harmful worms that can significantly damage plants, particularly their roots, leading to reduced growth and yield.

2. **Learn About Nematodes**:
- Nematodes are tiny, often less than a millimeter long.
- They infect the roots of plants, sucking out nutrients and water.
- Their presence can drastically reduce plant growth and overall yield.

3. **Relate Nematodes to Potato Production**:
- Nematodes are a limiting factor in potato production, causing damage to the roots and leading to decreased yield.
- Therefore, it is crucial to identify potato species that can resist nematode attacks.

4. **Identify Nematode Resistant Potato Species**:
- Among the options provided:
- Solanum spaghazine
- Solanum dimesum
- Solanum aqueol
- Solanum stoloniferum
- After evaluating the options, Solanum spaghazine is known to be resistant to nematodes.

5. **Conclusion**: The potato species that is resistant to nematodes is **Solanum spaghazine**.

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