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박문수(Moon Soo Park),박호기(Ho Ki Park),김태수(Tai Soo Kim),장영선(Yeong Sung Jang),박근용(Keun Yong Park) 한국약용작물학회 1993 한국약용작물학회지 Vol.1 No.2
This study was carried out to determine optimum harvest time of in vitro multiplied tuber Pinellia ternata(Thunb.) Breit from 1990 to 1992. Tuber yield and its related traits were observed with four harvest times. Plant height was 7.2cm at 6 months and 19.3cm at 24 months after planting. The number of tubers per unit area was significantly increased with the passage of growing time after planting (78 tubers/㎡), those were increased by 2.3 times in 6 months, 5.6 times in 12 months, 13.3 times in 18 months and 20.0 times in 24 months. The tuber sizes(length, width and weight) were highly enlarged during 12 to 18 months after planting compared with before or after this time. There were smaller tubers and lower tuber yields with shorter growing period, while large tubers above 7.1㎜ and higher yields with longer growing. It was suggested that the optimum harvest time was 18 months after planting, before over wintering rather than next year of spring, 24months after planting.
박호기(Ho Ki Park),박문수(Moon Soo Park),김태수(Tai Soo Kim),최인녹(In Leok Choi),장영선(Yeong Sung Jang),김규성(Gue Seong Kim) 한국약용작물학회 1994 한국약용작물학회지 Vol.2 No.2
Eleutherococcus senticocus MAXIM containing compounds for a cordial and lumbago is a native plant in this country. However it is generally difficult to propagate them by seed. This study was carried out to improve propagation efficacy by cutting method using Eleutherococcus senticocus MAXIM collected Mt. Odae for three years(`90∼`92). Rooting was delayed by 3 to 12 days but callus formation and rooting percentage was high by 75%, 30% respectively in the treatment of Rooton-F powder, a chemical for rooting promotion, compared with non-treatment. Rooting percentage and rooting characters were not differenced by treatment for remove rooting inhibition compounds and soil-media mixured by 1:1 of vermiculite and perlite was suitable for elevating rooting ratio. A. chiisanensis and A. sieboldianum were rooted well in any tune to be cut, while rooting activity of E. senticosus was different by time to be cut. Rooting ratio of E. senticosus was 20%, 36% and 60% when cutter March 20, July 20 and September 20, respectively.