• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2020.08a
• /
• pp.98-98
• /
• 2020

본 연구의 목적은 약재로 사용되는 천궁 중 토천궁(Ligusricum chuanxing Hort.)에 대한 지역별 생육환경을 확인하고 이에 따른 지상부 및 지하부 생장과의 상관관계를 규명하여 토천궁의 적정 재배지역 확인 및 지속 가능한 안정적인 한약재 생산에 대한 기초자료로 사용함에 있다. 토천궁이 주로 재배되고 있는 봉화군, 영양군, 평창군과 더불어 기후변화에 의한 재배지 이동을 고려하여 고위도 지역인 인제군을 포함한 4지역의 재배지를 선정하였으며, 생육특성을 비롯 기상 및 토양환경을 분석하여 토천궁의 생육특성과의 상관관계를 분석하였다. 4지역의 재배지 중 지상부와 지하부의 전체적인 생육은 평창지역에서 유의적으로 높게 확인되었다. 그리고 생육특성과 기상환경과의 상관관계에서 대기 및 토양온도가 지상부의 전체높이, 줄기직경, 지하부의 생육특성과 P < 0.01수준에서 유의적인 음의 상관관계, 잎의 길이 및 너비와는 양의 상관관계를 보였다. 또한 일사량이 높아질수록 잎의 크기를 제외한 생육특성이 양의 상관관계를 나타냈는데 이는 대기 및 온도의 상승으로 인한 잎의 증발산율 상승과 일사량에 따른 잎의 광합성량의 차이에 의한 결과라 사료된다. 또한 토양특성과의 상관관계에서 OM과 N, P, K는 지상부의 전체 높이와 줄기 직경을 비롯한 지하부의 생육특성과 음의 상관관계를 보였는데 근권의 토양시료를 사용하여 분석한 것이라 실질적으로 토천궁의 생육에 필요한 토양의 성분이 OM과 N, P, K이며, 토천궁에 의해 흡수되었다고 판단되는데 생육이 가장 우수했던 평창지역 토양 내 OM(1.69%)과 N(0.09%), P(897.72mg/kg), K(0.21cmol⁺/kg)의 수치가 타 지역 대비 상대적으로 낮게 측정된 결과가 본 실험에서 확인된 생육에 대한 OM, N, P, K의 함량과 부의 상관관계를 지지하며, 본 연구의 결과는 향후 토천궁의 재배지 선정 및 재배기술 정립에 활용할수 있을 것이라 사료된다.

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2022.10a
• /
• pp.137-137
• /
• 2022

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2023.04a
• /
• pp.102-102
• /
• 2023

• Journal of Life Science
• /
• v.20 no.4
• /
• pp.597-601
• /
• 2010

Quercus dentata (Thunb. ex Murray) is a major tree found in dry habitats such as limestone areas of Korea. In order to characterize the ecological traits of Q. dentata, we treated Q. dentata saplings under four gradient levels of major environment factors such as light, soil moisture and nutrients for 5 months in a glass house. We then measured and analyzed growth differences among them. Regarding light, aboveground, belowground and plant biomass were highest at a high gradient and lowest at a low one. The root/shoot ratio was highest at the highest light gradient. Regarding moisture, no measured items were significantly affected by the moisture gradient. Regarding nutrients, aboveground, belowground and plant biomass were the highest at a slightly high gradient and the lowest at a gradient lower or higher than this. The root/shoot ratio was not significantly affected by the nutrient gradient. From these results, it was shown that the growth of Q. dentata was more affected by light and nutrients in the environment than moisture.

• Journal of Korean Society of Forest Science
• /
• v.103 no.2
• /
• pp.248-257
• /
• 2014

The objectives of this study were to identify the root plate dimension of wind-uprooted trees and to analyze the relationship among wind direction, aboveground and belowground properties of the trees. The root plates of 77 Japanese larches (Larix kaempferi) and 24 Korean pines (Pinus koraiensis), which were uprooted by a typhoon in 2012, in the Taehwa Experimental Forest of Seoul National University, Korea, were investigated. The results showed the root plate shape could be assumed to be an oval or a circle in above view, and half an ellipse in side view, respectively. Also, the number and surface area of individual roots in root plates were greater in uprooting direction than in non-uprooting direction. The results of correlation analyses between aboveground and belowground properties indicated DBH had more significant correlation with belowground properties than tree height. Finally, simple linear relationships were derived for significantly correlated tree aboveground and belowground properties.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2018.04a
• /
• pp.58-58
• /
• 2018

'다목이'는 일반 곰취를 모본으로 한대리곰취를 부본으로 교배하여 병에 강하고 수량성이 뛰어난 특성을 가진 곰취 신품종으로 고령지농업연구소에서 육성하였다. 경관농업은 청정 농산물의 생산, 가공과 서비스가 연계된 농업의 6차산업화를 대표하는 농업형태이다. 곰취를 이용한 산채류 경관농업을 구현하기 위해 '다목이'와 자생식물의 혼식을 통한 친환경 생산기술을 개발코자 하였다. 인공상토로 채운 화분에 곤달비와 삼백초, 백리향, 라벤더 등 국내 외 자생식물을 혼식하여 각 식물의 지상부와 지하부 생육을 조사하였다. 삼백초, 라벤더, 이질풀, 웜우드, 어성초는 '다목이'와 혼식하여 지상부 생체중 214.1~362.4g, 지하부 생체중 171.0~258.5g으로 생육이 대등하거나 양호한 결과를 보였다. 반면에 생강과 박하는 '다목이'의 생육량을 지상부 생체중 90.9~123.6g, 지하부 생체중 54.0~110.3g으로 현저히 감소시켰다. 백리향과 좀씀바귀, 제충국, 옥잠화는 '다목이'에 의해 생육이 극도로 저하되거나 고사하였다. 배초향은 '다목이'와 서로의 생육이 감소된 것으로 나타났다. 따라서 '다목이'와의 혼식은 경관농업의 목적에 따라 삼백초, 라벤더, 이질풀, 웜우드, 어성초가 적합한 것으로 생각되었다.

• The Korean Journal of Ecology
• /
• v.28 no.3
• /
• pp.149-156
• /
• 2005

This study was conducted to elucidate the relationship between the aboveground vegetation structure and fine roots of the topsoil (<15m), and thereafter to obtain the regression models for the estimation of the fine roots of the topsoil using the aboveground vegetation values in the burned forest areas, Korea. The FRT (fine roots of the top soil) as well as the aboveground vegetation structure showed spatial variation in the earlier successional stages after forest fire. The fine roots (<2 mm) of the topsoil in the earlier successional stages than the first 3 year after forest fire showed the range from 3 to 166 g $DM/m^2$. The FRT in the naturally regenerated sites and planted sites after forest fire was closely correlated with the vegetation indices, especially lvc, representing the development status of the aboveground vegetation. The FRT in the terrace seeding work sites after forest fire was closely correlated with year elapsed after terrace seeding work. The FRT in the terrace seeding work sites showed the much higher values because of the vigorous growth of grass species than the other sites. In the naturally regenerated sites, the FRT showed the parabola form according to the increment of aboveground vegetation value (Ivc). Although the aboveground vegetation value (Ivc) showed a tendency to increase logarithmically during the secondary succession after forest fire, the estimated fine roots of the topsoil was depicted the parabola form showing the gradual increment until the first 15 years and slight decrease thereafter. Decrease of FRT in the later successional stage showing the high vegetation value may be caused by increment of the woody species contribution to the vegetation value (Ivc). Our results represented that the aboveground vegetation value (Ivc) can be used to the estimation of the fine roots of the topsoil in burned forest areas.

• Journal of Applied Biological Chemistry
• /
• v.64 no.3
• /
• pp.253-261
• /
• 2021

In this study, the ginseng sprout has produced through smart farm was classified according to its size and divided into above-ground (AG) and below-ground (BG) parts to compare ginsenoside contents and antioxidant activity. In the case of the AG part, the total phenolic contents were the highest at 5.16 mg/g in medium (M) size and the lowest at 2.23 mg/g in largest (L) size. The BG part also showed the highest content in the M size, but there was no significant difference. Also, the total flavonoid contents were also high in the M size in both the AG (5.16 mg/g) and BG (1.28 mg/g) parts. The major ginsenosides in the AG part were Re (20.33-24.15 mg/g) > Rd (11.36-27.42 mg/g) > Rg1 (4.48-5.54 mg/g) and the main ginsenosides in the BG part were Rb1 (5.09-8.61 mg/g) > Re (4.48-5.54 mg/g) > Rc (3.11-4.11 mg/g) in orders. In the case of M size, Re and Rd were approximately 4- and 19-folds higher at 24.15 mg/g and at 27.42 mg/g in the AG part and 5.20 mg/g and 1.43 mg in the BG part, respectively. In addition, F3 and Rh1 were detected in the AG part, but not in the BG part. 2,2-diphenyl-1-picrylhydrazyl (74.95%), 2,4,6-azino-bis (3-ethylbenzothiazoline-6-sulphnoic acid) diammonium salt (94.47%), and hydroxyl (70.39%) radical scavenging activities and FRAP (2.169) assay were the highest in M size than other sizes.

• FLOWER RESEARCH JOURNAL
• /
• v.17 no.3
• /
• pp.185-189
• /
• 2009

This study was carried out to investigate the effect of shading (50% or not) and pruning height (3cm, 6cm, and 9cm) of remained above-ground plant part on shoot emergence aspect, mortality rate, flowering and cut flower characteristics of two years old Gypsophila paniculata plants. Days to shoot emergence (80%) advanced, emerged shoot number increased and mortality rate surveyed on late October decreased in 50% shading treatment. In addition to, mortality rate decreased, as above-ground plant part was highly pruned. Blooming was earlier with highly pruning the remained above-ground pan and under non-shading condition than shading. Growth traits such flower stalk length, primary branches number, stem diameter, and cut flower yield were the best and also non-particulate rate and rosette formation rate were the lowest in pruning height of 9cm under non-shading condition.

• The Korean Journal of Ecology
• /
• v.27 no.1
• /
• pp.49-55
• /
• 2004

To verify growth properties of Carex kobomugi, above and belowground parts of C. kobomugi were surveyed on coastal sand dune at Sinduri, Choongnam Province from April, 2001 to June 2003. The results were the same as follows. In coastal sand dune, C. kobomugi followed Elymus mollis from mean high tide line. Density of C. kobomugi was the highest at unstable sand dune and 150 plants/㎡. And rates of flowering plant were 70% at unstable area and 10% at stable area. C.kobomugi is thus plant that adapted to unstable sand dune. Shoot distributed irregularly. The rhizome of C. kobomugi gradually decreased with the soil depth in unstable area, but mainly distributed to 20 ㎝ depth. New rhizome could be generated from the rhizome which was below 150 ㎝ depth or 5 years old. The number and length of new rhizome were related to biomass of previous year's shoot. That was, shoots which were below 0.5 and over 3 g/shoot in dry weight generated 1 and 5 rhizomes, respectively. And the mean lengths of rhizome from small (below 0.5 g) and large (over 3.0 g) shoots were 13.0 ㎝ and 57.6 ㎝, respectively.