Changes in growth and active components of Angelica gigas Nakai in different cultivation environments

다국어 초록 (Multilingual Abstract)

Angelica gigas Nakai belongs to the Unbelliferae family and was a representative medicinal plant with antiinflammatory, antioxidant and immunoenhancing activities. Recently, changes in the atmospheric environment, such as temperature, CO2 concentration and solar radiation, have continuously resulted in the reduction of cultivation area and production amount of A. gigas. They could affect the synthesis of secondary metabolites including nodakenin, decursin and decursinol angelate. This study aimed to investigate the atmospheric factors and the growth and content of active compounds of A. gigas. Air temperature and soil temperature were lowest in Jeongseon (northern region). Solar radiation was highest in Bonghwa (central region). Relative humidity was the lowest in Jeongseon from January to June, and it was the lowest in Bonghwa after July. At the Jeongseon experimental site, most of the growth characteristics of A. gigas were poor. The growth characteristics of A. gigas in Chungju and Bonghwa did not show any significant difference. The contents of active compounds were significantly highest in A. gigas collected from Chungju, but were significantly low in Jeongseon. Relative humidity showed a significant positive correlation with the content of the active compounds except for nodakenin. Decursin and decursinol angelate were significantly negatively correlated with solar radiation and soil moisture content, respectively. Most of growth characteristics of A. gigas, except for root length, showed a significant positive correlation with nodakenin content.
The results of this study can be used as data for predicting the location of A. gigas cultivation according to the growth and active compounds of A. gigas in different cultivation regions.