• Korean Association of Arts Management
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• no.60
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• pp.69-92
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• 2021

This study was designed to insist on the need of introducing the position of dramaturgs as professionals at performance venues. A dramaturg is a professional staff member that proposes an artistic orientation in the making process of performing arts works such as play and dance. Dramaturgs are divided into production dramaturgs participating in individual works and permanent dramaturgs resident in the theater. In the present study, discussions developed around plans to make use of permanent dramaturgs at local public theaters. The study introduced the advantages of the dramaturg position at culture and arts centers serving as a public theater in the community and proposed institutional improvement measures for it. At a culture and arts center, a dramaturg will play the roles of expanding culture and arts service to local residents, increasing creative chances for local artists, contribution to the vitalization of local culture, and narrowing the cultural gap between the Seoul metropolitan region and the rest of the nation. The introduction of a permanent dramaturg system should be supported by efforts across various aspects including the revision of Culture and Arts Promotion Act and Public Performance Act, improvement of the management system of culture and arts centers, change of performance evaluation methods for performance venues, and introduction of a cultivation course for the public sector.

• Journal of Practical Agriculture & Fisheries Research
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• v.9 no.1
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• pp.121-132
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• 2007

1. 버섯종균 개선 버섯의 품질과 수량을 좌우하는 주요 요인은 종균의 활력이다. 그러나 라오스에서는 종균의 활력이 낮아 조그마한 100cc 병에 배양완성하는데 14일이 소요되는 등 볍씨종균의 균사생장과 균사밀도가 매우 낮음을 확인하였다. 따라서 100cc 병을 1000cc 비닐봉지로 개선하여 입봉하는데 소요되는 시간을 10배로 단축 개선하였다. 또한 곡립종균을 액체종균으로 대처한 결과 균사생장속도가 2배가 빨랐으며 작업속도가 4배가 빨라졌다. 2. 버섯배지제조 방법 개선 미세하고 건조한 톱밥에 수분을 첨가하는데 50%이하의 수분함량을 유지함으로서 균사가 표면에만 자라고 있는 것을 확인하고 버섯 배지제조 시 물리성을 개선하기 위하여 볏짚을 잘게 잘라 10%~100%까지 혼합하는 실험을 실시하였다. 그 결과 톱밥 50%에 볏짚 50% 혼합하는 것이 균사생장 속도와 밀도가 좋았다. 또한 왕겨도 30%정도 혼합한 배지처리에서 가장 좋았다. 또한 수분함량도 65%로 향상하여 혼합하도록 지도하였다. 3. 버섯배지살균 방법 개선 라오스에서는 왕겨를 태워 살균을 실시하고 있다. 화력이 약하여 살균한 배지에서 볍씨의 새싹이 돋아나오는 경우를 발견하였다. 이는 살균이 제대로 되지 않았음을 의미한다. 그래서 이동식 직화식 살균을 권하였으나 시설자재값이 감당이 안되어 엄두를 내지 못하였다. 따라서 가스버너를 도입하여 단시간에 화력을 높여 살균을 실시하므로서 세균의 증식을 막아 균사생장속도를 빠르게 하고 균사량의 축적을 높이는데 교육을 하고 컨설팅을 실시하여 개선하였다. 4. 병뚜껑과 형성틀을 대체한 링을 이용한 입봉작업시간 단축과 비용절감 버섯봉지에 배지를 담는 입봉작업을 할 때 병뚜껑과 그의 형성틀을 끼우고 솜을 조금 뜯어 톱밥배지 위에 놓는 작업을 한다. 이는 아주 잘못된 방법이다. 왜 그렇게 하는가하는 것은 이해가 간다. 그렇게 하는 이유는 접종할 때 실내에서 그냥 접종하므로 뚜껑을 열때 보호막 역할을 할 것으로 생각하고 그렇게 하는데 천만의 말이다. 어떻든 뚜껑을 열면 잡균이 들어가는 것은 마찬가지이다. 그래서 이 솜을 배지표면에 놓으면 마른 솜이 그렇지 않아도 수분이 적은데 이 솜이 수분을 또 빼앗아 가버린다. 그래서 균사생장이 늘려 15일이면 다 자라야할 균사배양기간이 한달씩 걸려도 표면만 살짝 잘린 결과가 빗어진다. 이렇게 표면만 균사가 사탕 발림식으로 자라면 품질이 저하되고 수량이 적고 병해충에 저항력이 약해지게 된다. 따라서 뚜껑과 형성틀, 솜을 모두 없애고 봉지 상단부위를 U자형으로 꺽어서 링을 끼우는 방법을 실제로 실험으로 보여준 결과 작업능률이 5배로 빠르고 작업공정이 빨라짐으로서 세균번식밀도가 적어 균사생장 속도가 2배로 빨라졌고 수량이 배가됨을 증명하고 보급하여 많은 호평을 받았다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.10a
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• pp.202-202
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• 2022

Recently days, soybean production in paddy field is increasing, from 4,422 ha in 2016 to 10,658 ha in 2021 in Korea. It is easy for Phytophthora stem and root rot (PSR) occurring in paddy field condition, when it is poorly drained soils with a high clay content, and temporary flooding and ponding. Therefore PSR resistant soybean cultivar is required. The objective of this study is to identify QTL region and candidate genes relating to PSR resistance of the race in main soybean cultivation area in Korea. 210 soybean materials including cultivars and germplasm were used for inoculation and genome-wide association study (GWAS). Inoculation was conducted using stem-scar method with 2 replications in 2-year for the race 3053 from Kimje and 3617 from Andong. 210 materials were genotyped with Soya SNP 180K chip, and structure analysis and association mapping were conducted with QTLMAX V2. The results of inoculation showed that survival ratio ranged from 0% to 96.7% and mean 9.7% for 3053 and ranged from 0% to 100% and mean 7.6% for 3617. Structure analysis showed linkage disequillibrium (LD) was decayed below r²=0.5 at 335kb of SNP distance. Significant SNPs (LOD>7.0) were identified in Chr 1, 2, 3, 4, 5, 11, 14, 15 for 3053 and Chr 1, 2, 3, 7, 10, 14 for 3617. Especially, LD blocks (AX-90455181;15,056,628bp~AX-90475572;15,298,872bp) in Chr 2 for 3053 and 3067 were duplicated. 29 genes were identified on these genetic regions including Glyma.02gl47000 relating to ribosome recycling factor and defense response to fungus in Soybase.

• Korean Journal of Heritage: History & Science
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• v.57 no.2
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• pp.28-50
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• 2024

A fact-finding survey of the Demilitarized Zone can be said to be a very meaningful academic survey linked to previous index surveys of protected military areas and municipal and excavation surveys of ruins and military sites on Mount Dora. Not a few ruins were first discovered in this survey, and the locations, structures, and restoration artifacts of the previously investigated ruins were confirmed differently, raising the need for a detailed investigation. In particular, it is noteworthy that various relics from the Paleolithic Age to the Joseon Dynasty were recovered from relics dispersion sites such as Josan-ri and Cheorwon Gangseo-ri in Paju, and Hoengsan-ri Temple Site is also a Buddhist relic in the Demilitarized Zone. However, in the case of some graveyards and relics sites in the Paju region, it was an opportunity to understand the reality that they are not safe from cultivation and development, and the ruins of Cheorwon Capital Castle, Seongsanseong Fortress, Jorangjin Bastion, and Gangseo-ri Bastion were damaged during the construction of military facilities, and an urgent investigation is needed. Also, farmland and hilly areas around the ruins of Jangdan, Gunnae-myeon, and Gangsan-ri have not been properly investigated for buried cultural assets due to small-scale development. Therefore, it is an important time for the relevant authorities and agencies to cooperate more closely to establish special management and medium- to long-term investigation measures for the cultural heritage in the Demilitarized Zone based on the results of this fact-finding investigation.

• Journal of Applied Biological Chemistry
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• v.66
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• pp.484-491
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• 2023

Maize is one of the major crops consumed in worldwide, which nutrients accounts for a large amount of starch, but also functional components, and phenolic acid is known to have a high content. Maize is divided into waxy maize, sweet maize, and normal maize with its shape and use, therefore there is also a difference in nutritional composition. This study was conducted to analyze the content of functional components according to the type of maize and to produce natural variation data in consideration of environmental factors. 3 shapes of maize (waxy maize, sweet maize, and normal maize) samples cultivated in 3 regions (Suwon, Daegu, and Hongcheon) were analyzed using HPLC and GC-TOF-MS. Comparing with type through ANOVA, multivariate statistical analysis, Pearson correlation analysis, 28 components, including carotenoids and tocopherols, showed significant differences among a total of 32 components (p <0.05), 15 of them showed very significant differences (p <0.001). When comparing with regions, 15 components showed significant differences and only vanillate, syringate, C23-ol of them showed most significant differences (p <0.001). As a result of principal component analysis, cluster classification was distinguished by shape than by region, with α-carotene, cholesterol for waxy maize, vanillate and stigmasterol for sweet maize, lutein and β-carotene for normal maize had a great effect on cluster formation. It suggests that the content of functional components is more affected by genetic factors than environmental factors.

• Journal of The Korean Society of Grassland and Forage Science
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• v.27 no.3
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• pp.183-188
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• 2007

This study was conducted to determine the effects of seeding date on agronomic characteristics, productivity and feed value of Italian ryegrass, barley and rye during cropping after rice in Suwon, middle region of Korea, during 2004 and 2005. In general, early seeding (26 September) showed longer plant length and branch numbers per square meter than late sowing (11 October). Italian ryegrass had more early seeding effect than barley and rye. The yield of each plant was affected by sowing date in all experiments: the earlier seeding had higher yields than late seeding. In case of Italian ryegrass and barley as late-heading varieties showed more early seeding effect than rye. On the other hand, feed value tended to respond differently to yields. The feed value of each plant were based on liquid swine manure (12%) > composted cattle manure (7%) > composted swine manure (2%). The present results highlight the earlier planting obtained higher yield compared to those planted conventionally.

• Journal of Sericultural and Entomological Science
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• v.53 no.1
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• pp.19-28
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• 2015

Though mulberry fruit is known to a by-product that was produced from mulberry tree after harvesting leaves for silkworm rearing, as a yield and consumption of mulberry fruit was increased, it has been fixing to a new income crop. But, a stable production of mulberry was issued on damage by the weather disaster, so it is requires that agricultural disaster insurance import. So, in this study as a basic research for a importation of agricultural disaster insurance, the cultivation of mulberry for the production of mulberry fruits, the shape of tree, the number of a bearing fruit from each cultivar, the occurrence of mulberry fruit sclerotic disease, and a yield and the market price of mulberry fruits were investigated and that results obtained were as follows; The number of mulberry tree each 10a was abundant in Buan and Jeongeup region that cultivated a suitable cultivar on low cut shape, however, a large cultivated Gochang region was little. The number of a bearing fruit per 1m on the branch was highest in the variety of Cheongilppong at Gochang. Yield of mulberry fruits each 10a was Cheongilppong at Gochang, followed by Iksuppong at Sangju. Average sale price of the mulberry fruits was high in the order of Gwasang No. 2, Suwonppong, Iksuppong, and Cheongilppong.

• Korean Journal of Environmental Biology
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• v.36 no.1
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• pp.33-42
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• 2018

The tropical peatlands have been deforested and converted to agricultural and plantation areas in Indonesia. To manage water levels and increase the overall productivity of crops, canals have been constructed in tropical peatlands. The canals destructed the structure of the tropical peatlands, and increased the subsidence and fire hazard risks in the region. The Indonesian government enacted regulations and a moratorium on tropical peatlands, in order to reduce degradation. A practical method under the regulations of rewetting tropical peatlands was to permit a canal blocking. In this study, four canal blocking projects were investigated regarding their planning, construction priority, design, building material, construction, monitoring, time and costs associated with the canal blockings. In the protected areas, regulations restricted the development of the tropical peatlands areas that were noted as deeper than 3 m, and the administration stopped issuing new concessions for future work projects for this noted criteria of land use. A noted purpose of canal blockings in these areas was to effectuate the restoration of the lands in the region. The main considerations of the restoration efforts were to maintain a durability of the blockings, and to encourage the participation of the area stakeholders. In the case of a concession area, regulations were set into place to restrict clear-cutting and shifting cultivation, and to maintain groundwater level in the tropical peatland. The most significant priorities identified in the canal blocking project were the efficiency and cost-effectiveness of the project. Nevertheless, the drainage of tropical peatlands has been continued. On the basis of a literature review on regulations and rewetting methods in tropical peatlands of Indonesia, we discussed the improvements of the regulations, and adequate canal blockings to serve the function to rewet the tropical peatlands in Indonesia. Our results would help establishing an adequate direction and recommended guideline on viable rewetting methods for the restoration of drained tropical peatlands in Southeast Asia.

• Korean Journal of Organic Agriculture
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• v.14 no.1
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• pp.55-67
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• 2006

A survey of 31 organic farmers were conducted to investigate the actual conditions of organic matter application. The amounts of organic matter application in the fields were higher in order of fruit, vegetable and rice farm. The average was 50 ton/ha in vegetable farms. In the green vegetable farms saw dust and animal manure were mainly utilized to make compost. Rice straw, wood chip, and forest bushes were also used for composting. In the fruit vegetable farms materials relatively lower in nitrogen content such as rice straw and cattle manure were used in vegetative period and materials higher in nitrogen content such as oil cake and wild grass were used in reproductive phase. Nutrient balance investigated in the farm in Icheon region who produce lettuce, angelica, and kale continuously in one cropping year indicated surplus in three major nutrients. Nitrogen and phosphorous were in excess by 29 and 10 kg respectively in the organic rice farm in yang-pyoung region. While soil chemical properties in the organic farms are within the adequate range in open field, it is much higher than the limits in the greenhouse soils. Overall application of organic matter is in an oversupply state. This results suggested that the organic matter management should be based on the soil conditions for sustainable cultivation. Chemical composition of organic matters and soil test reports should be considered prior to the application of organic matter.

• Journal of Bio-Environment Control
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• v.27 no.4
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• pp.400-406
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• 2018

In this experiment the effect of supplemental lighting on the growth and yield of cucumber (Cucumis sativus L. 'Fresh') plants during low radiation period of winter season were investigated in glasshouses using common high-pressure sodium (HPS) lamps and newly developed plasma lighting system (PLS) lamps. Plants grown without supplemental lighting were considered as a control. Supplemental lighting was provided from November 20th, 2015 to March 15th, 2016 to ensure 14-hour photoperiod (natural+supplemental light), also lamps were operated automatically when the outside sun radiation levels were less than $100W{\cdot}m^{-2}$. Spectral analysis showed that HPS lamp had a discrete spectrum, lacked of the radiation in the 400-550 nm wave band (blue-green light), but had a high output in the orange-red region (550-650 nm). A higher red light output resulted in an increased red to far-red (R/FR) ratio in HPS lamp. PLS had a continuous spectrum and had a peak radiation in green region (490-550 nm). HPS has 12.6% lower output in photosynthetically active radiation (PAR) but 12.6% higher output in near infra-red (NIR) spectral regions compared to PLS. Both HPS and PLS lamps emitted very low levels of ultra-violet radiation (300-400 nm). Supplemental lighting both from HPS and PLS lamps increased plant height, leaf number, internode number and dry weight of cucumber plants compared to control. Photosynthetic activity of cucumber plants grown under two supplemental lighting systems was comparable. Number of fruits per cucumber plant (fruit weight per plant) in control, PLS, and HPS plots were 21.2 (2.9 kg), 38.7 (5.5 kg), and 40.4 (5.6 kg), respectively, thereby increasing yield by 1.8-1.9 times in comparison with control. An analysis of the economic feasibility of supplemental lighting in cucumber cultivation showed that considering lamp installation and electricity costs the income from supplemental lighting increased by 37% and 62% for PLS and HPS lamps, respectively.