(i) Water passes through the hydathode in liquid form.
(ii) There is a water chamber below it. Water accumulates there.
(iii) Hydathodes are more active at night than during the day.
(iv) Hydathodes cause water droplets to appear on leaf edges in the morning.
(v) Salts are released during water evaporation.
(vi) Water excretion is high when perspiration is low.