Potometer an apparatus for measuring the rate of water uptake by a cut shoot or whole plant.
蒸腾计：通过茎切段或整个植物体来测量水分吸收速率的仪器。
2
This is normally closely related to the rate of water loss by transpiration and the potometer can be used to compare transpiration rates under different conditions.
通常与由于蒸腾作用而丧失水分的速率紧密相关，蒸腾计可被用于在不同条件下进行蒸腾速率的比较。
3
The value measured by Penman-Monteith method is very close to that measured with whole-tree potometer and that measured by heat pulse technique with errors less than 2%.