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      Question

      Which factor contributes most significantly to "bent

      neck" disorder in cut roses during post-harvest storage?
      A Excessive sunlight Correct Answer Incorrect Answer
      B High ethylene exposure Correct Answer Incorrect Answer
      C Poor water uptake due to stem blockage Correct Answer Incorrect Answer
      D Boron toxicity Correct Answer Incorrect Answer

      Solution

      Air embolism or microbial growth at the cut stem end can obstruct water uptake, causing the stem to weaken and bend under flower weight.

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