What is a potometer?

Potometer or transpirometer is a device used to measure transpiration speed or the speed of water loss from the leaves of the plant. The subtraction in the offspring will usually vary according to factors in environment, such as temperature, light, humidity, breeze and available water supply for the plant. Very simple montometer can be made by inserting a leaf plant stem into a piece of plastic hose and connecting a hose with a pipette or a graded length of a glass hose full of water. It is important to prevent any air from entering the apparatus, so the potomes are often assembled underwater, with everything immersed from the leaves. Over time, changes in water levels are recorded to assess the rate of water absorption through a plant that corresponds to the loss of water from the leaves. Xylem consists of numerous small channels that run vertically up to the plant. When the water reaches the leaves, it evaporates through openings called stomata. Since the water molecules tend to hold together, this evaporation from hThe arable parts of the plant develop up the tension on the vertical column of water in Xylem. By setting an experiment with a potometer, transpiration speed can be measured when different environmental factors change.

One type of construction of a poster commonly used in the biology class is a bubble montometer, where the speed of the bubble in the water column is used to measure the transpiration of the plant. The bubble is introduced into the system by allowing a small amount of air at the end of the glass hose connected to the plant before immersing the tube in a container of water. Because the water is occupied by the plant, the bubble bubbles move along the tube and the marks made along the side of the tube allow the speed of the bubble progress.

With the Poser, transpiratory speeds can be assessed in different situations. The leaf stoma tends to open in response to light, so more light means increased transpiration. Insufficient water supply methodThe closure is closed, which reduces transpiration. In general, higher temperatures and dry air around the leaves increase the evaporation of water and cause a faster transpiration rate. The start of the conditions allow water vapor to collect around stomatics, discouraging evaporation, so the wind conditions tend to increase the speed of transpiration.