Abstract
Abstract ‘Ace’ Easter lily bulbs received combinations of cold (5°C) and warm (21° or 32°C) storage temp and were subsequently grown in a 21° min temp greenhouse. The cold requirement for flowering was greater if the bulbs were stored at 21° or 32°C. The negating effect of warm storage on flowering was greater if some cold was applied before warm storage clearly indicating that devernalization occurred. Twenty-one degrees was less effective for devernalization than 32°C. Improvements in plant quality (larger numbers of leaves and flowers) after warm storage were not well correlated with devernalization and appeared more a result of growth and leaf initiation during the warm storage treatment.
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