Guttation is referred as the appearance of drops of xylem sap on the tips or edges of leaves of some vascular plants, best example grasses. Guttation is not to be confused with dew that condenses from the atmosphere onto the plant surface.
The loss of excess water in liquid drops from margins of leaves of plants, when root pressure is high & transpiration is low.
- This method is very common during warm humid nights.
- This method occurs in plants growing in high soil moisture.
- Guttation occurs through specialized pores known as hydathodes present near the vein endings.
