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      Question

      To reduce the incidence of scab in potato, the

      recommended soil pH is:
      A 4.0–5.0 Correct Answer Incorrect Answer
      B 5.2–6.4 Correct Answer Incorrect Answer
      C 7.0–8.0 Correct Answer Incorrect Answer
      D 8.5–9.0 Correct Answer Incorrect Answer

      Solution

      Slightly acidic soils suppress scab-causing organisms. Higher pH favors disease development. Maintaining this pH range reduces tuber infection.

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