Definition of guttation in English:



  • The secretion of droplets of water from the pores of plants.

    • ‘These infections are usually triggered by guttation, or where leaves at the top of the canopy are exposed to dripping water from condensation or roof sprinklers.’
    • ‘The exit of this xylem water, termed guttation, results in the formation of small droplets in the vicinity of the hydathodes.’
    • ‘Guttation appears as a single large pendant drop at the tip of the blade; guttation forms by the extrusion of liquid water from the moist ground.…’
    • ‘Increasing air circulation and lowering humidity will help in controlling guttation as well.’
    • ‘When pressure was applied to the soil/root system of the intact maize plants, guttation appeared at the leaf margins and indicated that the potential X had been raised, confirming the observations of Passioura.’
    • ‘The classic example of guttation is droplets at the tip of grass leaves in the morning.’
    • ‘Following these methods will spread the concentrated dew or guttation over a larger surface area, causing the turf canopy to dry faster.’
    • ‘Many plants undergo a process of guttation at night to force out drops of excess water through special pores on their leaf edges and tips.’
    • ‘Shoot-synthesized CKs, as well as cytokinins which are released at the hydathodes by guttation and are reabsorbed into the phloem, can be transported through the phloem in the root direction.’


Late 19th century: from Latin gutta drop + -ation.