Plant Transpiration

Transpiration in Plants and its types The evaporation of water from the aerial part of plant is called transpiration. Transpiration is not a purely ph) sical process like evaporation. It is a vital phenomenon. It plays important role in the cell. –11e amount of water lost In transpiration is very large. It exceeds the final dry weight of the plant ...

Following factors affect the rate of transpiration: (a) External factors Humidity of air Water is evaporated through the stomata. This follows the simple law of diffusion. ‘Ibis diffusion can take place only if the water vapor content of the outer atmosphere is less than that of the inter-cellular spaces of the leaf. Transpiration is negligible in an atmosphere saturated with ...