... °C1-Methylcyclopropene (1-MCP) is a cyclopropene derivative used as a synthetic plant growth regulator. It is structurally related ... . It is used in enclosed indoor sites, such as coolers, truck trailers, greenhouses, storage facilities, and shipping containers.Under the brand ... Protection Agency for use on ornamental crops. It is used with cut flowers, potted flowers, and bedding, nursery and ...