Question

Which of the following is NOT a frost tolerant species of potato ?

• A. Solanum acaule
• B. Solanum vernei
• C. Solanum commersonii
• D. Solanum tuberosum

Hint:

Wild potato species like S. acaule, S. vernei, and S. commersonii are known for good to excellent frost tolerance. They are sources of genes for breeding.
The cultivated potato, Solanum tuberosum, is generally frost-sensitive.

Answer 1

The Correct Option is D

Step 1: S. acaule, S. vernei and S. commersonii are wild species used as breeding sources for frost tolerance.
Step 2: Breeders use wild species as a source precisely because the cultivated species lacks the trait.
Step 3: Solanum tuberosum, the cultivated potato, is frost-sensitive by comparison.
Step 4: The correct answer is Solanum tuberosum.