Effect of Yield and Decursin Content According to the Accumulative Temperature and Seedling Size in Cultivation Areas of Angelica gigas Nakai
2009
Kim, Y.G., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Ahn, Y.S., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | An, T.J., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Yeo, J.H., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Park, C.B., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea | Park, H.K., National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea
This study was conducted to find out some conditions for optimum cultivation of Angelica gigas Nakai by the investigation of root yield and decursin content from different seeding sizes and accumulative temperature. Accumulative temperature from April to October was 4,309℃ on altitude 100 m, 4,242℃ on 250 m, 3,662℃ on 530 m, 3,435℃ on 730 m, and altitude 530~730 m was less 650~870℃ than altitude 100 m cultivation areas of A. gigas. Seedling stand rate was increased from 86.4% to more than 90% as accumulative temperature decreases, and was increased in above 7 mm of seedling size, and 10% in non-mulching more than PE film mulching. Yield was increased as accumulative temperature decreases and in PE film mulching as 310.2 kg/10a. Also, Yield was increased in 7~9 mm than seedling diameter 5~7 mm as 313.0 kg/10a. Decursin content of primary roots was increased as altitude rises, ie, as 2.55% on altitude 100 m, 3.33% on 250 m, 5.51% on 530 m, and 6.24% on 730 m. Decursinol angelate content appeared little than decursin content as 1.08% on altitude 100 m, 1.37% on 250 m, 1.99% on 530 m, 2.38% on 730 m, and as altitude was heightened, content was increased.
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