Effect of Top-Precision on Growth and Quality in Glycyrrhiza Uralensis in Korea
2011
Nam, S.Y., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kim, I.J., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Choi, S.Y., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kim, Y.H., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Song, I.G., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Lee, G.J., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Park, J.H., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kim, T.J., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea
Growth and quality according to top-precision degree of Glycyrrhiza uralensis Fischer were tested by 4 treatments including 20% rate cutting of branch-top during 3 years from 2008. Growth above ground part of Glycyrrhiza uralensis Fischer with or without topping-plant height, branch number, node number, weight of stem and leaf-was good tendency without topping but stem diameter was less. growth above ground part among topping ratio was the less topping ratio the better except stem diameter. Growth of surface runner was good tendency without topping. growth of surface runner among topping degree was the less topping ratio the better. Root growth was higher without topping compare to topping. Length of main and supporting root among topping ratio was longer in 20% topping treatment but root growth except root length was good tend in 40% topping. Weight of root was high 40% greater than 60% greater than 20% greater than no topping the order, marketable yield in 40% topping of height was increased by 25% compared with no topping as 300kg/10a. content of Glycyrrhizinic acid with 20% and 40% topping of height was increased by 0.31% and 0.09% compared to no topping as 1.35% respectively.
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