ISHS Acta Horticulturae 205: Symposium on the Development of New Floricultural Crops, XXII IHC
MANIPULATION OF FLOWERING IN WHITE HEATHER |
| Authors: | G.R. Dixon, K.J. Dutton |
| Abstract:
Clear evidence for the daylength control of flowering in Calluna vulgaris is presented. Flowering occurs after long day (LD) treatment and is inhibited by short days (SD). Results suggest that the critical photoperiod is between 12–16 h. A combination of fluorescent and tungsten illumination can be used to induce flowering. Temperature exerts an influence during the floral initiation period. Temperatures in excess of 14°C applied during initiation and development will encourage flowering and increase the numbers of flowers produced. This is a preliminary report of work still in progress. | |
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