Effects of bud stage and temperature in bud anthesis acceleration on the number of days to shipping and qualities of bud cut carnations [Dianthus caryophllus]
2005
Minakuchi, S.(Ehime-ken. Agricultural Experiment Station, Matsuyama (Japan)) | Watanabe, H. | Kawasaki, T.
To investigate effects of bud stage and temperature in bud anthesis acceleration (BAA) on the number of days to shipping and qualities of carnations, the carnations (Dianthus caryophyllus L., cv. Nora) were cut at three stages, stage l, bud diameter of 15 mm; stage 3, tip of calyx had opened and the color of petals had not turned pink; stage 5, petals began to emerge from calyx, and treated with BAA solution at 20, 25 or 30 deg C. In the BA cutting at younger stage and the treatment at higher temperature reduced the number of days to shipping more effectively. Flower diameter of carnations opened by the BAA at 20 deg C was small, and the vase life was short. Vase life of carnation opened by the BAA at 25 deg C was short. Petal color of carnations opened by the BAA at 30 deg C was faded pink. Although all of carnations cut at 10mm or 15mm of bud diameter were fully opened by the BAA at 25 deg C, carnations cut at 5mm of bud diameter were not. Cutting at 10mm of bud diameter narrowed the flower diameter, and shortened the vase life of carnations opened by the BAA at 25 deg C
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