• 원예과학기술지
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• 제35권1호
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• pp.21-29
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• 2017

This study was conducted to determine the effects of artificial lighting sources on vegetative growth of Phalaenopsis and Doritaenopsis (an intergeneric hybrid of Doritis and Phalaenopsis) orchids. One - month - old plants were cultivated under fluorescent lamps, cool - white light - emitting diodes (LEDs), or warm - white LEDs at 80 and $160{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$. The blue (400 - 500 nm) : green (500 - 600 nm) : red (600 - 700 nm) : far - red (700 - 800 nm) ratios of the fluorescent lamps, cool-white LEDs, and warm-white LEDs were 1 : 1.3 : 0.8 : 0.1, 1 : 1.3 : 0.6 : 0.1, and 1 : 2.7 : 2.3 : 0.4, respectively. Each light treatment was maintained for 16 weeks in a closed plant-production system maintained at $28^{\circ}C$ with a 12 h photoperiod. The longest leaf span, as well as the leaf length and width of the uppermost mature leaf, were observed in plants treated with warm-white LEDs. Plants grown under fluorescent lamps had longer and wider leaves with a greater leaf span than plants grown under cool-white LEDs, while the maximum quantum efficiency of photosystem II was higher under cool-white LEDs. The vegetative responses affected by different lighting sources were similar at both 80 and $160{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$. Leaf span and root biomass were increased by the higher light intensity in both cultivars, while the relative chlorophyll content was decreased. These results indicate that relatively high intensity light can promote vegetative growth of young Phalaenopsis plants, and that warm - white LEDs, which contain a high red-light ratio, are a better lighting source for the growth of these plants than the cool-white LEDs or fluorescent lamps. These results could therefore be useful in the selection of artificial lighting to maximize vegetative growth of Phalaenopsis plants in a closed plant - production system.

• 한국자원식물학회지
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• 제19권4호
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• pp.537-554
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• 2006

유관속식물을 대상으로 2003년 4월부터 11월까지 조사한 결과, 조사지역내에 분포하는 식물은 95과 279속 392종 53변종 5품종등 총 450분류군으로 관찰되었다. 본 지역에서 조사된 451종류의 식물자원의 유용도를 분석한 결과 총 372종류의 자원식물이 분류되었으며, 식용자원(E)은 191종류(51.0%), 초지자원(P)은 181종류(48%), 약용자원(M)은 153종류(41.0%), 관상자원(O)은 54종류(14.0%), 목재자원(T)은 18종류(5.3%)의 순으로 나타났다. 한국특산식물은 10과 13속 13분류군으로 조사지역내 분포하는 총 450분류군 중 약 2.9%이며, 특정식물 중 III IV V등급 식물은 6과 6속 6분류군로 소산식물 450분류군의 약 1.3%로 나타났으며, 귀화식물은 11과, 22속, 25분류군으로 우리나라 전체 귀화식물 225종류의 11.1%이다.

• 한국환경복원기술학회지
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• 제12권6호
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• pp.18-35
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• 2009

Distribution of vascular plants in Yangyang-gun were investigated 12 times from Apr. to Sept., 2008. In the result of survey, the flora of this area consist of 412 taxa totally; 89 families, 259 genera, 366 species, 5 subspecies, 37 varieties and 4 forms. There were remarkable plants such as 11 taxa of Korean endemic plants, 58 taxa of specific plants which were designated by the Ministry of Environment, 2 taxa of endangered plants of Ministry of Environment, 7 taxa of rare, endangered plants of Korea Forest Service and 28 taxa of afforestation plants and 296 taxa of useful plants. Furthermore, 36 taxa of naturalized plants (8.74%) were also observed in this area. Vegetation of investigated area was conserved well. However, vegetation has been destroyed rapidly due to construction of commercial complex for human recreation such as condominiums and stores. Therefore, it is need to efficient management of the water quality and vegetation by conservation strategies from huge visitors.

• 한국환경복원기술학회지
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• 제16권2호
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• pp.93-104
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• 2013

The purpose of this study was to develop a list of plants that adapted to the aquatic environment in urban areas based on the list of plants surveyed through literature review and field surveys, and to classify the types of vegetation according to the five categories of plant distributions set by the U.S. Fish and Wildlife Service (1988) in the aspect of the adaptability of plants to the aquatic environment. Results of the classification by category according to the adaptability to the aquatic environment for the plant species surveyed through literature review and field surveys showed that there are 45 species of OBL, 96 species of FACW, 66 species of FAC, and 94 species of FACU, totaling 650 species. In addition, a total of 50 species excluding exotic species, endangered species, and naturally introduced plants are proposed as appropriate plants for the urban aquatic environment that will be artificially constructed. The results of the study can be utilized as the basic information for maintaining diversity and stability of the ecosystem during the restoration of water ecology; they can serve as useful data for the development of an optimum vegetation model when planting in water spaces in the future and preparing proper planting plans for each space. In addition, it is believed that the information will be useful in wetland identification and evaluation by observing plant species that appear only in wetlands.

• 한국수소및신에너지학회논문집
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• 제14권1호
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• pp.61-68
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• 2003

This paper presents the methodology to analyze flow duration characteristics and performance prediction technique for small hydro power(SHP) Plants and its application. The flow duration curve can be decided by using monthly rainfall data at the most of the SHP sites with no useful hydrological data. It was proved that the monthly rainfall data can be characterized by using the cumulative density function of Weibull distribution and Thiessen method were adopted to decide flow duration curve at SHP plants. And, the performance prediction technique has been studied and development. One SHP plant was selected and performance characteristics was analyzed by using the developed technique, Primary design specfications such as design flowrate, plant capacity, operational rate and annual electricity production for the SHP plant were estimated, It was found that the methodology developed in this study can be a useful tool to predict the performance of SHP plants and candidate sites in Korea.

• 한국실내디자인학회논문집
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• 제11호
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• pp.31-37
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• 1997

This study intens to provide available guideline of useful plants in interior and be used by designer. It focuses on evaluating the character of plants, the method of installation and the form of composition for suitable design of using plants. The study finds out that using plants in interior are necessary positively by 94% respondents. And results of factor analysis are that plants are needed for emothional stability(factor 1), visual charming(factor 2), and educational effection(factor 3). According to job, the group of students is visual charming (P=0.0037), the public servants and housewives is educational effection(p=0.0029). The most available space of plants as follows : Department(30.5%), Hotell(26.3%), House and Restuarant(12.7%). It has been identified that the public institution and commercial space are much indused plants. The most indused plants in house is ordered that the veranda, the living room, the entrance. This result is concerned about relation of natural light plants. The repondants reply that the favorite arrangement style is the corner form(63%), the center garden form(52.1%), the large planter(19.7%), the planter box(11.3%). They respond that they are more favorite light green color than dark, and mono color than mixture color. Finally, interior Designers should be understood the functional and aesthetic elements and the special interest about plants for developing desigv.

• 환경생물
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• 제24권4호
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• pp.314-328
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• 2006

본 조사를 통하여 서대산에 분포하는 관속식물의 목록과 유용성을 밝히고, 귀화식물의 분포를 밝히고자 하였다. 서대산지 역에 분포하는 관속식물을 대상으로 2001년 8월부터 2003년 10월까지 조사한 결과 94과 287속 402종 29변종 3품종 1잡종 등 총 465분류군이 확인되었다. 이는 우리나라 관속식물 4,071분류군의 11.4%에 해당된다. 유용식물자원은 총 388종류의 자원식물이 분류되었으며, 소산식물의 83.4%에 해당된다. 식용자원은 199종류 (51%), 초지자원은 186종류 (48%), 약용자원은 162종류(42%), 원예용자원은 100종류(26%), 목재자원은 20종류(5%), 공업용원자재자원은 3종류(1%)로 나타났다. 또한, 한국특산식물은 10과 11속 12종 등 총 12분류군, 귀화식물은 11과 18속 22종 등 총 22분류군으로 나타나 우리나라 전체 귀화식물 종 225종류(김 등 2000)의 9.7%이며, 소산식물의 4.8%에 달하는 것으로 조사되었다.

• 한국자원식물학회지
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• 제21권5호
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• pp.374-387
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• 2008

본 연구는 우리나라 남해안과 제주도 일대 해안사구에 분포하는 유관속식물을 대상으로 2006년 2월부터 11월까지 조사한 결과, 조사지역내에 분포하는 식물은 51과 130속 152종 1품종 18변종 등 총 171분류군으로 관찰되었으며, 주요 출현종은 Calystegia soldanella(갯메꽃), Ischaemum anthephoroides(갯쇠보리), Imperata cylindrica va. koenigii(띠), Vitex rotundifolia(순비가나무), Carex pumila(좀보리사초), Carex kobomugi(통보리사초) 등으로 나타났다. 본 지역에서 조사된 171종류의 식물자원의 유용도를 분석한 결과 총 113종류의 자원식물이 분류되었으며, 식용자원(Edible source, E)은 73종류(40.5%), 약용자원(Medicinal source, M)은 61종류(33.9%), 초지자원(Pasture source, P)은 22종류(12.2%), 관상자원(Ornamental source, O)은 16종류(8.9%), 섬유자원 (Fiber source, F)은 7종류(3.9%), 목재자원(Timber source, T)은 1종류(0.5%)의 순으로 나타났다. 한국특산식물은 1분류군이 조사지역내 분포하며, 식물구계학적 특정식물 중 I III IV V등급 식물은 24과 28속 29분류군으로 소산식물 171분류군의 16.9%로 나타났으며, 귀화식물은 9과 16속 19분류군로 우리나라 전체 귀화식물 271종류의 7.0%이다.

• Plant Resources
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• 제3권1호
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• pp.79-89
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• 2000

This study was carried out to clarify the distribution of woody resource plants in Mts. Kyeryong, Bomoon and Shikiang in Taeion area, Korea. The woody plants, collected from April 1995 to August 1998, consist of total 347 taxa; 59 families,141 genera,275 species, one subspecies,56 varieties and 15 forms. The useful resource of woody plants were categorized as edible plant(128 taxa), medical plant(117 taxa), ornament plants(107 taxa), timber plants(38 taxa), pasturage(35 taxa) and industrial plant(20 taxa).

• Journal of Plant Biotechnology
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• 제34권1호
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• pp.31-36
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• 2007

Though higher plants car not metabolize D-amino acid, many prokaryotes and eukaryotes have the D-amino acid metabolism. Therefore, we transformed tobacco plants with D-amino acid oxidase (DAO), which can metabolize D-amino acid, and confirmed that transgenic tobacco plants might metabolize D-amino acid. Transgenic tobacco plants were survived a high concentration of D-serine, however non-transgenic plants were not grown on D-serine medium. From Southern and Northern blot analysis, transgenic tobacco plants selected on D-serine medium were confirmed by insert and expression of transgene. $T_{1}$ tobacco seeds derived $T_{0}$ tobacco plants selfing were grown on D-serine medium and showed normal phenotype compared to wild tobacco plants. Transgenic tobacco plants displayed the metabolic capability of D-serine. Therefore, we suggested that DAO is useful selectable marker gene for plant transformation.