Determination of the possible amount of dew on the surface of plants

The purpose of the work was to experimentally determine the amount of moisture that can condense on the surface of the plant when cooled below the dew point. To estimate the amount of condensed water on a surface cooled below the dew point, a unit with a thermoelectric module with an area of 9 cm2 was assembled. It was established that the water condensation coefficient KC varies in the range from 1.3 to 2.1 mg / (cm2 x hour x grad) depending on the value of relative humidity and air temperature, which corresponds to 156...252 grams of dew per 1 m2 of plant surface chilled 1°C below the dew point or 780...1260 grams per 1 m2 of the surface of the plant, cooled 5°C below the dew point, in 12 hours (night time).