Articles
GROWTH AND FLOWERING OF CYMBIDIUM ENSIFOLIUM VAR. MISERICORS AS INFLUENCED BY TEMPERATURE
Article number
337_17
Pages
123 – 130
Language
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.
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.
Authors
N. Lee, C.Z. Lee
Keywords
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