When the leaves of the waterlogged and droughted
Caisin had similar leaf water contents (7–9 g/g DW) the
osmotic potential of the sap in the leaves of waterlogged
Caisin was about 0.75 MPa, whereas, in the Caisin under
drought it was 1.1 MPa. This difference would reflect a
difference in the potential gradient for water flow into the
rehydrating leaf discs, resulting in a lower relative water
content for the droughted Caisin at leaf water contents that
were similar to those in the waterlogged plants.