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      Question

      ‘Fruit drop’ is a physiological issue observed in

      many fruit crops. In guava, which plant hormone is commonly applied to reduce premature fruit drop?
      A Cytokinin Correct Answer Incorrect Answer
      B Ethylene Correct Answer Incorrect Answer
      C NAA (Naphthalene Acetic Acid) Correct Answer Incorrect Answer
      D IAA Correct Answer Incorrect Answer

      Solution

      NAA at low concentrations (20–50 ppm) is used to prevent fruit drop in guava and other fruits by strengthening fruit retention and reducing abscission.

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