• 한국자원식물학회지
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• 제34권6호
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• pp.608-615
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• 2021

Soil moisture control system including soil sensing and automatic water supply chain was constructed on open farmland and pot conditions. Soil moisture was controlled by the system showing over the soil moisture contents except 40% treatment. EC was gradually decreased by increasing cultivation days. On applying this system to control soil moisture, the growth and development characters of the bellflower were improved compared with control, cultivation without the automatic irrigation. Of the growth and development characters, plant height with water treatments was higher than that of control in 1st-year plants. Moreover, numbers of branch were increased by the increased soil moisture on farmland and pot condition. Capsule numbers for seed were best at 20%, 30% soil moisture treatment in 1st-year plants, and 20% to 50% treatment in 2nd-year plants. The construction of automatic soil moisture control system provide fundamental data for plant growth and development on open farmland soil condition.

• 한국환경생태학회지
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• 제7권1호
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• pp.1-5
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• 1993

목본식물에 대한 Al독성에 관한 기초자료를 얻고자, Al농도별(1.0, 2.5및 5.0mM) 수용액과 대조구로 지하수를 모래를 채운 화분에 파종한 곰솔, 측백나무 및 쥐똥나무에 1993년 4월 28일부터 6월 16일까지 주 3회씩, 1회 5mm의 강도로 처리하였다. 6월 26일 묘목을 굴취하여 생장관련형질(묘목의 수, 묘고, 지상부, 지하부 및 개체당 건중량)을 측정하여 수종간, 처리간 비교하였다. Al수용액 처리에 대한 반응은 수종별로 상이하였으며, 쥐똥나무가 세 수종 중에서는 가장 감수성인 것으로 나타났으며, 곰솔이 가장 내성을 지닌 것이라 판단된다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2006년도 학술발표회 논문집
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• pp.36-44
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• 2006

Based on water resources availability and development condition of the Lancang River, as well as considering the international river water resources characters, the paper put forwarded an integrated allocation way of the water resources of Lancang River Basin. According to the basic rules of equitable and suitable utilization of water resources of international rivers, water resources demand for domestic, industrial, irrigation and ecosystem system, and principles of society stabilities and the food safety etc, an index system of Lancang River water resources allocation was set up. Two levels scheme of Lancang River water allocation are proposed. First level is for an international water, which primarily to analysis the water quantity at the national boundary. Second level is for provincial water allocation among Qinghai, Yunnan provinces and Tibetan Autonomous Region. In the allocation schemes, the water resources development of Lancang River Basin at different scenarios and the related water allocation in different years and seasons were analyzed. A discharge to some cross sections of the river and a total amount water quantity for each district has been given as well.

• 한국환경생태학회지
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• 제7권1호
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• pp.6-9
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• 1993

목본식물에 대한 Al독성에 관한 기초자료를 얻고자, 이농도별(1.0, 2.5 및 5.0mM)수용액과 대조구로 지하수를 모래를 채운 화분에 삽목한 개나리와 플라타너스의 삽수에 1993년 4월 28일부터 6월 16일까지 주 3회씩 처리하였다. 6월 16일 삽목묘를 굴취하여 생장관련형질(신초의 생장, 엽수 및 엽록소함량)과 뿌리의 길이를 처리간 비교하였다. 모든 생장관련형질들(신초의 생장, 엽수 및 엽록소함량)에서 처리간 고도의 통계적 유의차가 인정되었으며, 뿌리생장의 경우 개나리삽목묘에서는 처리간 통계적 유의차가 인정되었으나, 플라타너스삽목묘에서는 처리간 유의차가 인정되지 않았다.

• The Korean Journal of Ecology
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• 제19권3호
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• pp.209-216
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• 1996

In order to identify the habitat characteristics of water shield (Brasenia schreberi), water quality and sediment characters were investigated. Water shield had peculial habitats such as old reservoir, developed basin-like reservior, a water depth within 1.5 m, constant water level, and thick sediment layer at the bottom. The species had very dense populations under the favorable growing conditions and occasionally grew together with Utricularia japonica. When water shield decreased, Nelumbo nucifera, Nuphar japonicum and Zizania latifolia increased. Natural populations of water shield need protection because it is endangered by the human activities and their harvest. The optimal conditions for the growth of water shield was near neutral pH. low conductivity and low turbidity. Therefore the input of pollutants should be controlled for its growth. The inorganic ion contents such as K, Mg, and Na were higher in the water shield growing area. Especially iron content of the sediments in the reservoirs with water shield was nearly five times as high as that in the reservoirs without water shield. thus iron might be one of the major limiting factors for the growth. It was considered that molybdenum can be another major factor because water shield is a nitrogen fixing plant.

• 한국자원식물학회지
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• 제11권3호
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• pp.290-295
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• 1998

Presowing treatements to seed are reasonable for elevating the seedling production efficiency. This experiment was carried out to determine the effects of $GA_3$ [0 (water) : 0.01 mM] and light qulaity (red : white) simultaneously treated before sowing on seedling emergence and growth of tobacco (Nicotiana tabacum L.) cv NC 82 and Burley 21. Red or white light was illuminated 12 hours a day while seeds of the cultivars were imbibed with either water or $GA_3$ 0.01 mM for 3 days. Seedling emergence was measured up to 20 days after sowing but morphological characters and dry weights were done 40 days. The seedling emergence rate of cv NC 82 was more affected by light quality and $GA_3$ pretreatments than that of cv Burley 21. Light quality more influenced the rate than $GA_3$ while red light or water imbibition enhanced the rates of the two cultivars compared to the other treatement. Although mean plant height and leaf number per seedling were nearly equal between the treatements, red light declined leaf area per seedling of cv Burley 21 of which seeds were imbibed in water but white light decreased the areas of both cultiars of which seeds were soaked in $GA_3$solution. Shoot dry weight was greater in cv NC 82 but less in cv Burley 21 pretreated with red light, and root dry weight showed the reverse result in white light, meaning that presowing light and $GA_3$ treatments could be changed the seedling development and growth of tobacco.

• 한국자원식물학회지
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• 제12권4호
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• pp.282-288
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• 1999

더덕을 야생지 및 재배지 토양으로 분 재배하여 토양조건 및 혈당 재식 주수가 더덕의 생육특성 및 향끽미 물질발현에 미치는 영향을 구명하고자 수행해 본 결과는 다음과 같다. 1. 재배지 토양에서 폿트 재배시 더덕의 길이 생장은 토양수분보다는 혈당 주수에 영향을 미쳤고, 재배지와 야생지 토양 공히 수분조건이 과습>적습>과건 순으로 두께가 컸고, 혈당재배주 수간에는 혈당 재배주수가 증가 할 수록 두께는 작아지는 경향이고, 개체 및 혈당수량은 수분조건별로 과습>적습>과건 순으로 높았다. 2. 야생지토양에 비하여 재배지 토양에서의 더덕재배는 수분, 환원당, 조단백질의 함량이 높았고, 조섬유 및 석유에텔 추출물 함량이 낮았다. 3. 야생지 토양에 비해 재배지 토양에서 생육한 더덕근에서 유기산인 malic산의 함량이 낮았고, 지방산함량은 비슷하였다. 4. 토양수분처리간에는 조사된 주요 정유성분들의 대부분이 적습>과습>과건 순으로 함량이 높았고, 특히 3-methylpentanoic acid와 squalene의 함량은 적습구가 과습 및 과건 처리 구에서 보다 2-5배 정도 높았다.

• 디자인학연구
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• 제12권3호
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• pp.93-103
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• 1999

This study is investigated the formative characteristics of Rap Music and Hiphop fashion, and I try to comprehend about the fashion mind and fashion culture of teenager 1. Teenager's Hiphop Fashion is subcultures, the fashion culture of teenager reflects their unique identity. 2. The formative characters of Rap Music and Hiphop Fashion are the incompatibility ignored their body size and the popularity caused street fashion imitation, the unbalance ignored a principle of fashion design. 3. Hiphop Fashion is consist of jump-style jacket, hood -shirt, stripe T-shirt and drum pants, baggy pants, snowboard pants and so on. 4. The characters of Hiphop Fashion is the breaking of rule and the destruction. 5. They select something which they like, even though the price is high, so they is tendency to editing coordinate 6. Fashion business for teenager, it needs an ideal conversion not for 'company' but for 'individual' As this results, fashion culture of teenager came out to the surface of water, because of Hiphop Fashion.

• Natural Product Sciences
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• 제13권1호
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• pp.27-32
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• 2007

Berberis tinctoria (Berberidaceae), commonly known as Nilgiri Barberry is a common allied species to B. aristata, used in India Traditional Systems of Medicine by the name of 'Daruharidra' for skin disease, jaundice, affection of eyes, and rheumatism. Keeping this in view, in the present study attempts have been made to identify marker characters of B. tinctoria. Some of the diagnostic features of the root are patches of pericyclic fibre, pitted sclerieds, crystals, berberine containing cells and heterocyclic medullary rays. Besides, the physicochemical characters such as total ash; acid insoluble ash; alcohol and water soluble extractive; tannins; sugar and starch percentages has also shown some variations. The percentage of berberine as berberine hydrochloride was also calculated through HPTLC densitometric method and it was found almost similar to B. aristata, B. asiatica and B. chitria i.e. 3.36%. Thus it can be explored as a possible source of substitute to B.aristata.

• Natural Product Sciences
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• 제12권1호
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• pp.19-23
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• 2006

Berberis chitria (family Berberidaceae) has a close affinity with B. aristata, used in traditional systems of medicine as a drug 'Daruharidra' for skin disease, jaundice, affection of eyes, and rheumatism. Keeping this in view, in the present study attempts have been made to identify marker characters of B. chitria in order to differentiate the two species. Some of the diagnostic features of the root are patches of pericyclic fibre, pitted sclerieds and berberine containing cells and heterocyclic medullary rays. Besides, the physicochemical characters such as total ash; acid insoluble ash; alcohol and water soluble extractive; tannins; sugar and starch percentages has shown variations. The percentage of berberine as berberine hydrochloride was also calculated through HPTLC densitometric method and it was found little higher than B. aristata and B. asiatica i.e. 3.16%. Thus, this species can be utilized as a possible substitute to Daruharidra.