title: Agar dish isopiestic equilibration method for controlling the water potential of solid substrates.
abstract: Maintenance of substrate water potential in petri dishes is achieved by using vapor-pressure controlling, solute-amended agar gel discs attached to the inside of the top halves of the dishes.
mesh_terms: D000362:Agar; D001431:Bacteriological Techniques; D003470:Culture Media; D005782:Gels; D012987:Soil; D014867:Water
chemical_list: D003470:Culture Media; D005782:Gels; D012987:Soil; D014867:Water; D000362:Agar