Variability of temperature and relative humidity in the cultivation of certain plant

Abstract

 The present work, within studies on the microclimate of certain plants, determined the changes in temperature and relative humidity, depending on the type of weather, the measurement height above the ground and the type of vegetation. On the basis of meteorological data the course of the average, maximum and minimum temperature and relative humidity was presented. During the high- and low-pressure weather air temperature measurements by means of a psychrometer Assmann and using psychrometric tables of the air was determined in raspberry plantations repeated on meadow and winter wheat canopy at three different heights above the ground (5 cm, 50 cm and 100 cm). The study showed differences in temperature depending on the height of measurement, the time of observation, the type of vegetation and weather patterns. During high-pressure weather the medium and maximum air temperatures increased together with an increasing height in a raspberry canopy, while in the wheat canopy the situation was reversed, the maximum and mean air temperature decreasing with the increase of the height. In the low-pressure weather the average air temperature decreased together with height in all analyzed vegetation types. The maximum temperature increased with altitude only in a raspberry canopy, while in the other cases it decreased. During the high-pressure weather relative humidity decreased significantly during the day, while the during the low pressure weather relative humidity remained at a similar level throughout the day.