What is root pressure? How is it demonstrated experimentally?

1.	What is root pressure? How is it demonstrated experimentally?
Answer» Root pressure is defined as the positive hydrostatic pressure developed in the root cortical cells, which pushes water into xylem upto a certain height. Root pressure can be demonstrated in the following ways: Choose a well-watered soft-stemmed plant Cut the stem horizontally near the base with sharp blade. Drops of fluid ooze out of the cut stem indicates a positive hydrostatic pressure, the root pressure. If the cut end is contracted to a rubber tube, the liquid can be collected and the rate of exudation measured.

Answer»

Root pressure is defined as the positive hydrostatic pressure developed in the root cortical cells, which pushes water into xylem upto a certain height. Root pressure can be demonstrated in the following ways:

Choose a well-watered soft-stemmed plant
Cut the stem horizontally near the base with sharp blade.
Drops of fluid ooze out of the cut stem indicates a positive hydrostatic pressure, the root pressure.
If the cut end is contracted to a rubber tube, the liquid can be collected and the rate of exudation measured.

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What is root pressure? How is it demonstrated experimentally?

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