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94

Q:

Which of the following elements plays an effective role in controlling the rate of transpiration?

  • 1
    Phosphorus
  • 2
    Potassium
  • 3
    Zinc
  • 4
    Magnesium
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Answer : 2. "Potassium"
Explanation :

Plant Parameters – These plant parameters help plants control the rates of transpiration by acting as a resistance to the movement of water out of the plant. A pore in the cells of the outer layer of a leaf that is surrounded by two guard cells and is used for gas exchange.

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