Question

pressure potential in plant systems can be negative . elaborate​

Answer 1

Answer:

Without turgor, plants will lose structure and wilt. The pressure potential in a plant cell is usually positive. In plasmolysed cells, pressure potential is almost zero. Negative pressure potentials occur when water is pulled through an open system such as a plant xylem vessel.

Answer 2

During high transpiration rate transpirational pull of water extends into the vessels of the stem. This will create a negative pressure potential in the xylem.

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