Flowers were placed with their bases in water in
sealed glass chambers at 20 O C, and aliquots of 1 -MCP
calculated to provide a total concentration of 1 to 20
nl.l-’ were injected into the chambers. The chambers
normally remained sealed for six hours. Control
flowers were sealed in air in identical chambers. The
flowers were then placed in a vase-life room, or were
exposed to low concentrations (normally 1 ~1.1~‘) of
ethylene.