ISHS Acta Horticulturae 337: II International Symposium on the Development of New Floricultural Crops
GROWTH AND FLOWERING OF CYMBIDIUM ENSIFOLIUM VAR. MISERICORS AS INFLUENCED BY TEMPERATURE |
| Authors: | N. Lee, C.Z. Lee |
| DOI: | 10.17660/ActaHortic.1993.337.17 |
| Abstract:
The vegetative shoots growth, flowering, and pseudobulb development of Cymbidium ensifolium var. misericors, a miniature cymbidium native to Taiwan, were studied. Flower buds initiation occurred in early May, florets became visible in late July to early Aug., and full bloom was seen in 2 weeks thereafter, when grown under subtropical conditions. The day/night temperature at 30/25 and 25/20°C regimes were most suitable for vegetative shoot growth and flower buds formation. Inflorescences most often formed in currently growing young pseudobulbs and in 1 to 2-year old pseudobulbs. Shoots growth rates as well as the number of inflorescences were reduced at lower temperature regime, such as 20/15 °C. Most vegetative shoots emerged from axillary buds of the 2nd through 5th sheath leaves counted from the top. Inflorescences developed in nodal position of upper sheath leaves and of 2 lower leaves. It took about 6 months to complete one growing cycle, i.e. from the emergence of vegetative shoots to the completion of pseudobulb development, when grown at 30/25°C and 25/20°C regimes. Lower growing temperatures deterred plant growth and flower bud formation. | |
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