在植物弱蒸腾情况下，木质部的水分处于正压状态，这种压力叫根压。

The positive xylem pressure, often occurs with low transpiration rate, is termed as root pressure.

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在植物弱蒸腾情况下，木质部的水分处于正压状态，这种压力叫根压。

The positive xylem pressure, often occurs with low transpiration rate, is termed as root pressure.

youdao