Distribution of Stem Vestige according to Ginseng Cultivars and Determination of Root Age by Ginsenoside Types of Red Ginseng
2017
Kim, Y.C., NIHHS, RDA, Wanju, Republic of Korea | Kim, J.U., NIHHS, RDA, Eumseong, Republic of Korea | Bae, B.S., Korea Ginseng Corporation, Daejeon, Republic of Korea | Kang, J.Y., Korea Ginseng Corporation, Daejeon, Republic of Korea | Kim, D.H., NIHHS, RDA, Eumseong, Republic of Korea | Hyun, D.Y., NIHHS, RDA, Eumseong, Republic of Korea | Lee, J.S., Korea Ginseng Corporation, Daejeon, Republic of Korea
Background: In Korea, 6-year-old ginseng root is economically more important than 4 or 5-year-old roots. In general, the root age is determined by counting the number of stem vestiges. However, this method does not accurately estimate ginseng root age. Methods and Results: In this study, the stem vestige counting method was used to survey a total of 18,395 fresh ginsengs cultured in 2014, and 2015, to determine the accuracy of this method. The proportion of 6-year-old roots, with more than four stem vestiges, was 46.1% in 2014. For the cultivar Chunpoong cultivated in Eumseong and Goesan countries in 2015, the proportion of more than four stem vestiges was 55.9%, and 43.5%, respectively. The proportion of more than four stem vestiges for the Gumpoong cultivated in Eumseong and Yangpyeong countries was 67.0%, and 35.1%, respectively, whereas that for the cultivar Yunpoong was 36.0% and 61.0%, respectively. Moreover, it was confirmed that differences in the levels of Rg1 will enable root age determination. Conclusions: Root age determination by the stem vestige test was found to differ depending on the environmental and cultivation conditions. To determine the age of ginseng roots, a comprehensive method, such as counting stem vestiges and evaluating differences in ginsenoside levels, should be applied.
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