Seeds of carrot, lettuce, sicklepod, annual
ryegrass, and pigweedwere evaluated for their
sensitivity to the osmotic potential (yS) present
in the aqueous tissue extracts. Solutions
with yS of 0 MPa [control (distilled water
only)], –0.03 MPa, and –0.1 MPa were made
using polyethylene glycol (PEG).