KMID : 1098420230310010018
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Korean Journal of Medicinal Crop Science 2023 Volume.31 No. 1 p.18 ~ p.26
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Effects of Cytokinin, Ethylene and Propiconazole Combinational Treatment on Growth and Ginsenoside Content of 4-year-old Panax ginseng C. A. Meyer
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Kwon Na-Yeong
Lee Jung-Woo Jung Sung-Min Jo Ick-Hyun Jang In-Bok Bang Kyong-Hwan Kim Young-Chang Kim Dong-Hwi Hwang Hyeon-A Lim Yoo-Kyung Cho Hyun-Woo
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Abstract
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Background : Korean ginseng (Panax ginseng C. A. Meyer) is recognized for its medicinal properties. Because ginseng is cultivated for 4 ? 6 years in one place, the growing environment can affect ginseng growth. Specifically, root growth can be altered by plant hormones, which in turn, affects crop yields. Among plant hormones, cytokinin is known to increase secondary growth by promoting cambium cell division. In addition, ethylene and propiconazole can regulate root development. In this study, the effects and interactions of cytokinin, ethylene, and propiconazole on four-year-old ginseng plants were analyzed.
Methods and Results : Ginseng plants were treated with each hormone every two weeks. Cytokinin (6-benzylaminopurine, 500 ¥ìM) was applied to the soil, and 100 nM of propiconazole or 100 ¥ìM of ethylene was applied in combination with cytokinin. Root width and weight, and ginsenoside content of each plant were the highest when cytokinin and propiconazole were applied together. The highest number of buds was observed under cytokinin treatment. However, no significant differences were observed in shoot growth, except for stem width.
Conclusions : The greatest effect on root development was observed when cytokinin and propiconazole were applied together, and ginsenoside content increased following hormone treatment.
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KEYWORD
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Panax ginseng C. A. Meyer, Cytokinin, Ethylene, Growth, Ginsenoside, Interaction, Plant Hormone, Propiconazole, Root
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