Response of cut rose cultivars Cuenca, Daphnee, Vendela and Freedom when treated with ethylene (ET) or anti-ET agents before or after inoculation with Botrytis cinerea as measured by flower Botrytis damage rating after 3 d in vase, leaf Botrytis frequency after 3 d in vase, vase life, leaf drop frequency after 3 d in vase, and flower openness after 5 d in vase.