This requires energy. This creates an energy gradient. Pulling a vacuum has exactly the opposite effect as adding pressure. Pulling a tension of 0.23 MPa, will also equalize volumes by adding tension. The waxy, lipid suberin layer interrupts apoplastic transport AND also blocks back flow of water and minerals.
Water enters tracheids and vessel elements.
These have no protoplasts. The lumen and walls are continuous with the apoplast. Transfer of water must again go from symplastic to apoplastic. PUSH root cells pumping material into the cells and stele often does generate a positive pressure, but this is not a major mechanism for water movement in most plants. Water moves from the xylem to the evaporating surfaces.