REF BI0193AME14884079

Eisco Ganong's Potometer

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In stock
£28.82
£28.82
total
£28.82
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  • At home between 07/12/2021 and 09/12/2021 for any order placed before 6 pm
 
 
 
 
 
 
 
 
 
 
 
 
Product details
Description

A potometer is an apparatus used to measure the rate of water loss, or transpiration, from a plant. In the Ganong's potometer, the rate of transpiration is determined by measuring the position of an air bubble in a graduated tube over a period of time. The change in position is caused by the plant absorbing water to replace an equal volume of water lost by transpiration.

A plant shoot is sealed into a stopper which fits the end tube and the whole apparatus is filled with water, the open end of the capillary tube, which is graduated in millimetres, dipping into a beaker of water. The position of the air bubble may easily be adjusted by opening the glass stopcock to admit water from the reservoir.

The apparatus is mounted on a wooden base with the tubes held by clips.

  • Height to top of reservoir 170mm
  • Diameter of reservoir 20mm
  • Length, overall 320mm
  • Base 80 x 20mm
  • Capillary bore 1 mm
  • Eisco type BI0193A

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