Transpiration – Class 11 | Chapter – 11 | Biology Short Notes Series PDF

Types of Transpiration

• Stomatal: It is the evaporation of water from the stomata of the plants. Most of the water from the plants is transpired this way. The water near the surface of the leaves changes into vapour and evaporates when the stomata are open. They account for around 80 to 90% of the total water loss from the plants.
• Lenticular: It is the evaporation of water through lenticels. Lenticels are the tiny openings present on the woody bark. A minimal amount of water is lost through lenticels.
• Cuticular: It is the evaporation of water from the cuticle of the plants. The cuticle is a waxy covering on the surface of the leaves of the plants. It causes around 20% of transpiration in plants.