Monday, August 3, 2015

What are different types of transpiration?


Types of Transpiration
There are three types of transpiration:

        i.            Stomatal Transpiration
Evaporation of water through stomata is called stomatal transpiration. More than 90% of water is lost through the stomata although stomata openings surface. Stomatal transpiration involves two processes:
  • a)      Evaporation of water from cell wall surface bordering the inner cellular. Spaces, or air spaces of the mesophyll tissue.
  • b)      Diffusion of the water vapours from the intercellular spaces into the atmosphere by way of the stomata.

      ii.            Cuticular Transpiration
The loss of water as a vapour, directly from the surface of leaves of leaves and herbaceous stems through the cuticle is called Cuticular Transpiration. Only a small fraction of water is lost by Cuticular Transpiration.

    iii.            Lenticular Transpiration

The loss of water through the lenticels in the bark is called Lenticular Transpiration. Lenticels are small openings present in the bark.

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