Articles
EVALUATION OF LOW TEMPERATURE FLOWER FORMATION IN CHRYSANTHEMUM USING SEVERAL MICROSCOPY TECHNIQUES
Article number
272_40
Pages
273 – 278
Language
Abstract
The flower formation process at low temperature (10°C) in Dendranthema grandiflora Tzvelev. ‘Bright Golden Anne’ was compared to flower formation at 15°C. The transition from vegetative to reproductive meristem was documented by light, fluorescence, and scanning electron microscopy (SEM) at weekly intervals for 5 weeks.
SEM provided the best documentation for the progression of flower formation while the event of flower initiation was most easily detected using a fluorescence microscope or a stereo-microscope.
Both the initiation and development of flowers were delayed at 10° compared to 15°C. After 21 short days at 15°C, 7–8 rows of floret primordia were formed on the receptacle.
Plants grown at 10°C had formed 4–5 rows of floret primordia after 28 short days.
SEM provided the best documentation for the progression of flower formation while the event of flower initiation was most easily detected using a fluorescence microscope or a stereo-microscope.
Both the initiation and development of flowers were delayed at 10° compared to 15°C. After 21 short days at 15°C, 7–8 rows of floret primordia were formed on the receptacle.
Plants grown at 10°C had formed 4–5 rows of floret primordia after 28 short days.
Publication
Authors
M.G. Karlsson, H.C.H. McIntyre
Keywords
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