蒸腾计 po(te)tometer 为测定植物的芽或切枝吸水速度的装置。如图所示。在U形管的一端插放植物体,在另一端连接有已测定过直径的毛细管,根据毛细管内水的移动而测出不同条件下的水分吸收速度。
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。
Potometer an apparatus for measuring the rate of water uptake by a cut shoot or whole plant.
用蒸腾计法和解剖学方法分别研究了氮亏缺对玉米单根径、轴向导度的影响。
The results indicated that N deficiency decreased root radial and axial hydraulic conductivity of maize.
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。
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.
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