The instrument used to measure the rate of transpiration in plants is called a/an? by Sunday | Apr 29 | Biology NECO | 0 comments A. Anemometer B. Barometer C. Hydrometer D. Photomer E. Potometer Correct Answer: Option E – Potometer Users Also Read These:A hygrometer is an instrument used to measure?The rate of transpiration of a leafy shoot can be…Which of the following is used to measure the rate…Which of the following instrument may be used to…The instrument used to measure the relative humidity is?