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이상훈(Sang Hoon Lee),박충범(Chung Berm Park),강용구(Yong Ku Kang),김금숙(Geum Soog Kim),한신희(Sin Hee Han),최애진(Ae Jin Choi),한승호(Seung Ho Han),김종엽(Jong Yeob Kim),박현로(Hyun Ro Park),허목(Mok Hur),박춘근(Chun Geon Park) 한국육종학회 2018 한국육종학회지 Vol.50 No.3
A new Rehmannia glutinosa cultivar ‘Dagang’ was bred from ‘Jihwang 1’ (check variety) seedlings by the medicinal crop breeding team of the National Institute of Horticulture and Herbal Science, RDA, in 2010. It has pink flowers, a dark brown seed coat, and a light yellow root cortex. The plant type was intermediate erect, whereas ‘Jihwang 1’ showed some drooping. The leaf shape was narrow oblong, whereas ‘Jihwang 1’ was oblong. The yield of dried root was higher than that of ‘Jihwang 1’. ‘Dagang’ showed stronger resistance to root rot than did ‘Jihwang 1’, rendering it more stable in cultivation. The regional adaptation trials were conducted at three different locations from 2009 to 2010. The average yield of ‘Dagang’ was 20.1 ton/ha, which was 14% higher than that of ‘Jihwang 1’. Also, compared with ‘Jihwang 1’, the yield of ‘Dagang’ was 1%-3% higher than that of the existing cultivars ‘Kokang’ and ‘Togang’. This cultivar could adapt to most of the cultivation areas in Korea, except for mountainous regions (Registration No. 4724).
이상훈(Sang-Hoon Lee),김동휘(Dong-Hwi Kim),박충범(Chung-Berm Park),한승호(Seung-Ho Han),박춘봉(Chun-Bong Park),박현로(Hyun-Ro Park),김연복(Yeon-Bok Kim),박춘근(Chun-Geon Park) 한국육종학회 2017 한국육종학회지 Vol.49 No.1
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)