ISHS Acta Horticulturae 147: Symposium on Production Planning in Glasshouse Floriculture
PHOTOPERIOD AND TEMPERATURE EFFECTS ON STEPHANOTIS FLOWERING |
| Authors: | Anton M. Kofranek, R. A. Criley |
| Abstract:
Stephanotis floribunda is a long-day plant in its flower initiation, and this requirement may be satisfied by either an interruption of the dark period or an extension of the light period. Night temperatures of 15° C delay development and may delay initiation, but can be partially overcome by long days. The optimum temperature for flower initiation and development appears to be 21°, but brief periods of cooler temperatures may be conducive to the development of more floral axes. Temperatures of 27°, while enhancing the rate of development, lead to poorer quality flowers. The effect of a cool (or warm) night upon the rate of development is exerted upon the earliest flower bud stages. | |
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