EFFECTS OF SEASONAL VARIATION IN DAYLENGHT ON FLOWER INITIATION IN SPRAY CARNATION
If the above mentioned data are compared to the results with standard carnation, no important differences are found with respect to daylength response.
The period between microscopically visible flower initiation and full bloom did not respond to daylength but varied with the seasonal variation in solar radiation. In the literature no year-round data on flower initiation are available. Results of our work with spray carnation, however, are in agreement with several published year-round series concerning the total period between planting or pinching and flowering of standard carnation.