• 한국약용작물학회지
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• 제5권4호
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• pp.314-317
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• 1997

남부지방(南部地方)에서 황금(黃芩)의 맥후작(麥後作) 직파재배시 적정(直播栽培時 適定) 시비량(施肥量)을 구명(究明)하여 재배기술(栽培技術)을 개선(改善), 보완(補完)하고 수량(收量)을 증대(增大)시켜 안정생산(安定生産)에 기여(寄與)하고자 여천(麗川) 재래종(在來種)을 공시(供試)하여 실시(實施)한 시험결과(試驗結果)를 요약(要約)하면 다음과 같다. 1, 무비구(無肥區)$(N-P_2O_5-K_2O\;=\;0\;-\;0\;-\;0kg/10a)$의 개화기(開花期) 7월(月) 20일(日)에 비하여 모든 시비구(施肥區)가 7월(月) 21일(日)${\sim}$23일(日)로 $1{\sim}2$일(日) 늦게 개화(開花)하였다. 2. 생육형질(生育形質)인 경장(莖長), 경태(莖太), 분지수(分枝數), 주근장(主根長), 주근경(主根徑) 생경엽중(生莖葉重), 건경엽동(乾莖葉重)은 무비구(無肥區)에 비하여 모든 시비구(施肥區) 양호(良好)하였으나 다비구(多肥區)$(N-P_2O_5-K_2O\;=\;12-18-12kg/10a)$ 3. 수량형질(收量形質)인 건근중(乾根重)은 무비구(無肥區)보다 모든 시비구(施肥區)가 양호(良好)하였으나 그 중에서 중비구(中肥區)$(N-P_2O_5-K_2O\;=\;9-13.5-9kg/10a)$에서 10a당 건근중(乾根重)이 178kg으로 무비구(無肥區)의 126kg에 비(比)하여 41%가 증수(增收)되었고 표준시비구(標準施肥區)$(N-P_2O_5-K_2O\;=\;6-9-6kg/10a)$의 167kg에 비해서는 7%가 증수(增收)되었다.

• Natural Product Sciences
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• 제7권1호
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• pp.9-12
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• 2001

A number of Myristica species are used in herbal medicine for a variety of ailments. The methanol extracts of the leaves and the stem and root barks of Myristica subabulata were fractionated into petrol, dichloromethane and finally ethyl acetate. These were then screened against a total of 31 micro-organisms comprising of 13 G +ve, 12 G ve, one protozoa and 5 moulds. A broad-spectrum anti-bacterial activity was observed. As compared to fractionated the un-fractionated extracts exhibited much better level of activity.

• 한국자원식물학회지
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• 제20권3호
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• pp.263-266
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• 2007

High performance liquid chromatography (HPLC) was used for the analysis of chiisanoside in each stem and root of Acanthopanax senticosus collected from South Korea, North Korea, China and Russia. A reverse-phase system using a gradient of H$_{2}$O and acetonitrile as the mobile phase was developed and detection was at 210nm. The analysis was successfully carried out within 30 min. Chiisanoside was measured in the stem and root of A. senticosus collected from various countries.

• 한국작물학회지
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• 제13권
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• pp.77-81
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• 1973

대두의 근계에 관한 연구의 제1보로 3개품종을 상토와 모래의 2개토양에서 각시기별로 재료를 채취하여 몇 개형질에 대한 조사측정을 하고 통계처리를 한 바 그 결과를 요약하면 다음과 같다. 1. 경직경의 비대는 발육초기 1개월까지는 완만하며 8월하순이후부터 급격하여지고 모래보다 상토에서 그 비대정도가 높았다. 2. Top의 길이의 신장도 발육 1개월이후부터 급격하여지고 모래보다 상토에서 더욱 신장이 잘된다. 3. Top길이보다 Root길이가 발육초기 1개월까지는 길고 Root의 길이는 반대로 상토보다 모래에서 신장이 잘된다. 4. Top무게도 발육초기 1개월까지는 완만히 증가하고 모래보다 상토에서 무겁게 나타나나 Top길이보다 Top무게의 경우에 그 증가의 정도가 완만하다. 5. Top무게보다 Root무게는 발육초기 1개월까지는 무거우며 상토에서 모래보다 무겁게 나타난다. 6. 5개형질 상호간에는 모래, 상토, 전체에 있어서 어느것이나 높은 상관관계를 보이고 Root길이와의 관계를 보면 Top무게, Top길이, Root무게, 경직경의 순서로 높은 상관계수를 나타내었다. 7. Root무게와의 관계를 보면 경직경, Top무게, Top길이, Root길이의 순서로 상관계수가 높았다.

• 한국약용작물학회지
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• 제10권4호
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• pp.269-272
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• 2002

Ethanol and butanol fractionation of E. senticosus showed strong anti-oxidant activity, and methanol and water extracts also had high anti-oxidant activity. The anti-oxidant activities in ethanol and butanol fractionation were higher than or similar to those of ${\alpha}-tocopherol$. The cytotoxic effect of root extract of E. senticosus was evaluated on seven different human cancer cell lines, The extracts of leaf and stem of E. senticosus also had strong antioxidant activity, but the antioxidant activity in root extract was higher than those in leaf and stem extracts. Methanol, hexane, and aqueous fraction layer had much higher inhibitory activities on lipid peroxidation in rat liver microsomes compared with ${\alpha}-tocopherol$. The effect of root extract of E. senticosus was evaluated on six human cancer cell lines. The values of 50% growth inhibition $(GI_{50})$ for the extracts were mostly below $30{\mu}g/ml$, and the extracts are considered as active inhibitory compounds on cancer cells.

• Journal of Plant Biology
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• 제16권1_2호
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• pp.12-16
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• 1973

The inhibitory effect of Inula sesquiterpene lactones on the growth of Phaseolus vulgaris was tested and the abnormality of the stem organization caused by the lactones was also examined. The longitudinal growth of the young stem and the expansion of the young leaf were stopped by the application of the lactones. However, this inhibitory effect was appeared and strictly restricted within the treated area. So the young shoot was observed for possible bending as a result of the unilateral application of the lactones. When the application of the lactones into the medium, the growth of the plant was entirely repressed. However, the growth of shoot and re-initiation of root were started after the plant was transfered to the lactone free medium. And partial reversal of inhibition of the stem growth was achieved by the additions of gibberelline and the lactones.

• Journal of Ginseng Research
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• 제15권1호
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• pp.36-40
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• 1991

A field experiment was conducted to examine the growth of one and two year old American ginseng (Panax guinguefolium L.) in the arid interior of British Columbia, Canada. For both years of plants, early season growth was characterized by rapid stem and leaf dry matter production. Root growth commenced in early June and continued until early September. One year old roots had a dry weight of 0.1 to 0.2g at the end of the growing season. The two years old roots commenced the growing season at 0.Is and increased in dry matter by a factor of ten-fold. Dry to fresh weight ratios for both years were similar for root, leaf and stem samples at the end of the growing season. Leaf area index for both years showed similarities in progression over the growing season. As a consequence of the effectiveness of the microclimate modification employed to permit American ginseng cultivation (elevated shade cloth and surface mulch), plant growth and development was extremely good. This indicates the potential for the cultivation of American ginseng in dryland environments.

• Restorative Dentistry and Endodontics
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• 제35권4호
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• pp.238-245
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• 2010

최근 치수 질환 또는 치근단 질환을 가진 미성숙 영구치에 대한 보존적 치료의 방법으로 여러가지 근관 내 소독 약제를 이용하여 증상 개선은 물론 치근의 성장 및 치수의 재생이 이루어진 증례들이 보고되고 있다. 그 기전에 대해서는 아직 명확하게 밝혀지지는 않았지만 여러가지 줄기 세포 또는 미분화 간엽 세포들이 관여하는 것으로 생각되며, 실제로 재생된 조직에서는 대부분 백악질양 또는 골양 물질의 침착이 관찰되고 있다. 이 새롭고 보존적인 치료 접근 방법은 다능성 줄기 세포와 다양한 조직 공학 기술에 대한 연구와 더불어, 재생적 근관 치료에 더 밝은 비전을 제시하고 있다.

• Journal of Ginseng Research
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• 제5권2호
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• pp.92-98
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• 1981

This experiment was carried out to inverstigate the characteristics of growth of ginseng Plant on field conditions as affected by seedling weight. Weight of seedling ranged from 0.4 to 1.8g were divided into seven classes at interval of 0.2g. The heavy seedlings showed superiority in stem length, stem diameter, leaf area, number of palmate leaf and leaflets and root weight in 2-,3-, and 4-age as compared to light ones. The heavy seedlings also showed superiority in the ratio of inflorescence appearance in 2-age and seed product in 4-age as compared to light ones, but there were no significant difference in the ratio of missing-plant and the cracking. of root. The differences of growth in field condition as affected by seedling weight were diminished as the age progressed, and the annual growth rates of root of light seedling were high in older plant.

• 한국산림과학회지
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• 제98권5호
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• pp.558-562
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• 2009

The growth, carbon and nitrogen status of container grown black pine (Pinus thunbergii) seedlings were examined at various levels of foliar fertilization (control, 0.1%, 0.2%, 0.3%). Root collar diameter, height and dry weight of black pine seedlings increased significantly with increasing levels of foliar fertilization (P<0.05). Carbon concentration in needle of black pine seedlings was significantly higher in the foliar fertilization than in the control treatments (P<0.05), while other seedling components such as stem and roots were not significantly different (P>0.05) between the foliar fertilization and the control treatments. Nitrogen concentration and content were significantly greater in the foliar fertilization than in the control treatments (P<0.05). Shoot/root ratio of black pine seedlings (needle+stem dry weight/root dry weight) was greater in the foliar fertilization (2.40-2.89) than in the control treatments (1.87). However, nitrogen use efficiency was significantly lower (P<0.05) in the foliar fertilization (28-46) than in the control (111) treatments. The results indicate that morphological characteristics and nutritional status on container grown black pine seedlings were enhanced by various levels of foliar fertilization.