A new Rehmannia glutinosa cultivar ‘Tokang’ was derived from ‘Jihwang 1’ seedlings by medicinal crop breeding team of National Institute of Horticulture and Herbal Science, RDA in 2009. It has pink flower, dark brown seed coat, light yellow root cortex. The plant type was some rising from the ground. The content of catalpol and extract were higher than the ‘Jihwang 1’(check variety). The content of catalpol was 4.55% and the extract was 71.2%. It showed stronger resistance to root rot compare with the ‘Jihwang 1’. The regional yield trials were conducted at three different locations from 2007 to 2009. The average yield of ‘Tokang’ was 21.1ton/ha, which was 12% more than the ‘Jihwang 1’. This cultivar is adaptable to the whole of Korea except for mountain areas. (Registration No. 4725)

• 이상훈(농촌진흥청 국립원예특작과학원) | Sang-Hoon Lee (Department of Herbal Crop Research, NIHHS, RDA, Eumseong 27709, Korea)
• 김동휘(농촌진흥청 국립원예특작과학원) | Dong-Hwi Kim (Department of Herbal Crop Research, NIHHS, RDA, Eumseong 27709, Korea)
• 박충범(농촌진흥청 국립원예특작과학원) | Chung-Berm Park (Department of Herbal Crop Research, NIHHS, RDA, Eumseong 27709, Korea)
• 한승호(충청남도농업기술원) | Seung-Ho Han (Chungnam Agricultural Research & Extension Services, Geumsan 32723, Korea)
• 박춘봉(전라북도농업기술원) | Chun-Bong Park (Jeonbuk Agricultural Research & Extension Services, Jinan 55440, Korea)
• 박현로(경상북도농업기술원) | Hyun-Ro Park (Gyeongbuk Agricultural Research & Extension Services, Gumi 39102, Korea)
• 김연복(농촌진흥청 국립원예특작과학원) | Yeon-Bok Kim (Department of Herbal Crop Research, NIHHS, RDA, Eumseong 27709, Korea)
• 박춘근(농촌진흥청 국립원예특작과학원) | Chun-Geon Park (Department of Herbal Crop Research, NIHHS, RDA, Eumseong 27709, Korea) Corresponding author