GROWTH AND FLOWERING OF ANEMONE CORONARIA L. ‘DE CAEN’

Corms which were harvested in late June and immediately dried and stored at room temperature were replanted from July to November and maintained at 0°, 5°, 10°, 15°, 20° C.

Regardless of the planting date or temperature, all corms emerged.
The 20° C treated corms emerged the earliest, followed by 15°, 10°, 5° and 0° C. The 4 weeks 5° C corm treatment resulted in 100 % floral primordia development 4 weeks after planting.
Initiation of floral primordia with non-cold corms was slower than with the cooled corms and consequently anthesis was delayed by 30 days.
Regardless of cold treatment, days to anthesis were shortest at 20° C, followed by 15°, 10° and 5° C. Flowers number per plant and stem length was highest at 10° C, but flower weight and stem diameter were best at 5° C. Photoperiod treatments were not significant, although long day did hastened flowering.
Low temperature forcing treatment from a practical view point, is valid as when low temperature treatment began in August, the 10° C 4 weeks treatment was optimum for rapid flowering, high number flower, flower weight, stem diameter for production from October to February.

Symposium on the Development of New Floricultural Crops, XXII IHC

K. Ohkawa

https://doi.org/10.17660/ActaHortic.1987.205.24