Difference of longevity of flower and contents of sugars in flower organs between cut flowers and intact flowers on carnation [Dianthus] plant
2002
"Matsuyama, A. (Chuo Agricultural High School, Ebina, Kanagawa (Japan)) | Ichimura, K. | Kuboi, S. | Uematsu, H. | Igarashi, D. | Miura, Y. "
"We compared the longevity and content of soluble carbohydrates in cut flower with intact flower of carnation 'Nora'. The longevity of cut flower and intact flower was 8 and 21 days, and flower diameter at full bloom was 7.3cm and 6.4cm, respectively. Fresh weight in flower organ of the cut flower increased to 6 days and then decreased, on the other hand, that of the intact flower increased linearly during first 8 days and was constant thereafter to 21 days. Fructose and glucose contents in petals of the cut flower increased slowly in the first 6 days and then decreased to 14 days linearly, but those of the intact flower increased rapidly to 8 days and kept those high levels to 21 days. Sucrose content in leaves of the intact flower decreased to 14 days, and then increased in 21 days significantly, however that of the cut flower decreased to the end of the experiment (14 days). Sucrose and glucose contents in stem of the cut flower and intact flower decreased to 8 days and 14 days, respectively, and then increased in 14 days and 21 days, respectively. These results suggest that difference in longevity and diameter of flower between cut and intact flower are attributed to sugars supplied from the plant."
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