What is the force developed in the cortex of the root that pushes water from the soil into the xylem of the root?

Which two statements are wrong for transpiration pull theory?
$(i)$ There is a continuous network of water channels from the root hairs to the tips of the leaves.
$(ii)$ Due to adhesive force between molecules of water,the water column has a great tensile strength.
$(iii)$ There is a cohesive force between the wall of the xylem vessels and water.
$(iv)$ Transpiration pull is strong enough to pull up the column of water to a great height.

During the ascent of sap,adhesion force is generated between which of the following?

Root pressure theory was proposed by . . . . . . .

$A$ column of water within xylem vessels of tall trees does not break under its weight because of

When a potted plant is flooded with water,the magnitude of root pressure