Response of Lilium longiflorum to ancymidol bulb-dips

Plant height at flowering was reduced in Easter lily (Lilium longiflorum Thunb. cultivar ‘Nellie White’) by momentarily dipping the bulbs in 100 or 264 mg l^?1 solutions of ancymidol α-cyclopropyl-α-(p-methoxyphenyl)-5-pyrimidinemethanol] prior to planting. The number of flowers was unaffected, and days to flower increased slightly at the highest concentration. This method of application is more effective than soil drench and foliarspray applications.