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      Question

      Which plant growth regulator is commonly used to break

      dormancy in potato tubers for quick sprouting before planting?
      A Ethylene Correct Answer Incorrect Answer
      B ABA Correct Answer Incorrect Answer
      C NAA Correct Answer Incorrect Answer
      D GA₃ Correct Answer Incorrect Answer
      E Cytokinin Correct Answer Incorrect Answer

      Solution

      Gibberellic acid (GA ₃ ) breaks dormancy in tubers by stimulating cell elongation and division. It Is applied to potato tubers before sowing to induce uniform sprouting, particularly in storage.

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