Plant viability assay.
D002462:Cell Membrane / Q000502:physiology; D002463:Cell Membrane Permeability; D005615:Freezing; D008564:Membrane Potentials; D063245:Plant Development; D018521:Plant Physiological Phenomena; D010944:Plants / Q000201:enzymology; D011309:Preservation, Biological / Q000379:methods