ISHS Acta Horticulturae 570: VIII International Symposium on Flowerbulbs
EFFECTS OF BULB TEMPERATURE ON DEVELOPMENT OF HIPPEASTRUM |
| Authors: | J.C. Doorduin, W. Verkerke |
| Keywords: | flower bulbs, Hippeastrum, bulb temperature, bulb growth, bud development flowering, profit |
| Abstract:
The effects of bulb temperature during the cultivation period on bud development and flowering of Hippeastrum (amaryllis) were investigated. Bulb temperature treatments ranged from 15 to 25°C. Premature flowering occurred at 15 and 17°C. At higher bulb temperature, larger bulbs with more leaves developed, but the percentage of bulb dry matter decreased. The number of potentially flowering buds increased, while the length of the leaf-bud cycle decreased with temperature. Bud desiccation and Fusarium infection occurred at the highest temperature levels. Optimum bulb temperature for flower development was found to be 23°C. | |
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