Correct option is A
✅ (a) Quality seed: • Dehaulming means cutting the potato plant’s foliage before harvesting. • Helps in controlling diseases like late blight and improves seed quality. • It hardens tuber skin and prevents virus transmission.
❌ (b) Higher yield: • Not a direct effect; sometimes can reduce yield if done too early.
❌ (c) Big tubers: • Opposite may occur; early dehaulming can stop tuber enlargement.
❌ (d) None of above: • Incorrect, as quality seed is a primary purpose.