# Which of the following is used to determine the rate of transpiration in plants?

$\begin{array}{1 1}(A)\;\text{Porometer/hygrometer}\\(B)\;\text{Potometer} \\(C)\;\text{Auxanometer}\\(D)\;\text{Tensiometer/Barometer}\end{array}$

Potometer is used to determine the rate of transpiration in plants
Hence (B) is the correct answer.
answered Apr 3, 2014