Comparison between Stomatal Transpiration and Cuticilar Transpiration - QS Study
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Comparison between Stomatal Transpiration and Cuticilar Transpiration

Stomatal Transpiration: Water vapour diffuses out through minute stomata present in soft above ground part of plant is known as Stomatal Transpiration. Of the total water loosed, near about 85 – 90% of water loosed by the stomatal transpiration.

  • In organ of plants in which water transpiration occur: It occurs through stomata
  • Quantity: About 85% transpiration occurs in this method
  • Time: Stomatal Transpiration occurs only in light reaction
  • Controlling: Stomatal Transpiration is controlled by guard cells

 

Cuticilar Transpiration: This type of transpiration depends upon the thickness of the cuticle and presence or absence of wax coating on the surface of the leaves.

  • In organ of plants in which water transpiration occur: It occurs through cuticle
  • Quantity: Only 10-15% transpiration occurs in this method
  • Time: Cuticular transpiration occurs day and night
  • Controlling: Cuticular transpiration is controlled by thickness and broken parts of cuticles.