蒸腾拉力

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蒸腾拉力

1

水分上升的动力主要来自于植物的蒸腾拉力和导管的毛细作用。

The impetus of water uptake is transpiration pull and capillarity phenomena .
2

当蒸腾拉力（F）大于输导阻力（R）时气孔开始振荡并使振幅逐渐加大；

The stomatal oscillation is initiated and its amplitude is being enhanced when the transpirational pulling force ( F ) is larger than the resistance ( R ) .