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      Question

      In carnation, which of the following symptoms indicates

      boron toxicity rather than deficiency?
      A Brittle petals Correct Answer Incorrect Answer
      B Bull head flowers Correct Answer Incorrect Answer
      C Leaf tip burn and marginal necrosis Correct Answer Incorrect Answer
      D Flower stem bending Correct Answer Incorrect Answer

      Solution

      Excess boron causes toxicity symptoms like scorched leaf tips and necrosis, while deficiency leads to malformed flowers.

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