Tag Archives: how does light intensity affect transpiration

Factors Affecting the Rate of Transpiration The rate transpiration is affected by a number of environmental (external) and plant (internal) factors. These factors also affect the stomatal movements. Effect of Environmental factors The environmental factors such as humidity (vapour pressure), temperature, air movements (wind), atmospheric pressure, light and availability of soil water influence the rate of transpiration most. Effect of ...

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 ...