• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.11a
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• pp.66-71
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• 1997

우리나라에서 토마토재배는$^{10)}$ 94.7%가 시설재배를 하고 있는데 연작에 따른 각종 장해가 발생하고 있다. 연작은 여러 가지 생리적 장해 또는 병충해의 만연$^{8)}$ 이 있으나 가장 치명적인 것이 뿌리썩음시들음병(근부위조병, Fusarium oxyporum Schl. f. sp. lycopersici Snyder et Honsen, race J$_3$)으로 한번 발병하면 방제가 되지 않는다. (중략)

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.5 no.10
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• pp.55-60
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• 1984

우리가 농토배양을 선두로 못자리 설치에서부터 긴 여름불볕 더위속에서 열심히 벼농사를 짓는 것은 결실의 계절인 가을에 질이 좋은 쌀, 보다 많은 쌀을 풍성한 마음으로 거두기 위해서 이다. 특히 올해는 벼 안전 다수확을 위해서 겨울 논물가두기부터 시작하여 못자리 조기설치, 일찍 모내기를 끝내고 적기병충해 방제와 마지막 단계에서 뜻밖의 폭우가 있었지만 폭우의 피해까지도 어느 정도 슬기롭게 극복하여 이제 최후의 거두어 들이는 작업에 온 정성을 다할 때가 되었으며 또 내년을 위해 금년 한해동안의 벼농사에서 잘 되었던 점과 못 되었던 점을 정리해 두었다가 거울로 삼는 것도 바람직하다.

• Proceedings of the EASDL Conference
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• 2003.04a
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• pp.61-69
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• 2003

우리나라 사람들은 길에서 이웃을 만났을 때 진지 잡수셨습니까 하고 끼니에 관심을 표하는 습관은 어느 때부터 이었는지 알 수 없으나 먹는 것에 관심을 전부 쏟아야 했던 우리생활사의 한 단면을 말해 주고 있다. 각 민족마다 주식의 작물을 결정하는데 있어서는 몇 개의 갖추어야할 조건이 있었다. 주식이 되는 작물은 영양원으로서 가치가 있고 열량이 풍부하고 병충해와 기상 재해에 강하고 재배가 쉬워야 하며 그 나라에서 생산량이 많아서 사람들이 충분히 먹을 수 있어야 하며 부식과 잘 어울려야 하고 매일 먹어도 싫증이 나지 않는 음식이 되어야 된다는 것이다.(중략)

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.6 no.2
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• pp.42-52
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• 1988

The main object of this study is to prove the effectiveness of Landsat data in detecting the stressed areas in forest by extracting these areas. And also to choose the effective bands for this type of survey and to reduce the effect of shadow in forest to improve the accuracy of classification are the other objects. In this study Landsat-5 TM data is used and image processing techniques such as spatial filtering and ratio are taken to reduce the effect of shadow and to improve the classification accuracy. As a result following conclusions are obtained. First, Landsat TM data is useful to detect the stressed areas in forest. Second, when detecting the stressed area, band 4 and 5 are the most effective. Third, spatial filtering and ratio are useful to reudce the effect of shadow and improve the classification accuracy. Especially, ratio has great effect on improving the classification accuracy between forest and other areas.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.1
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• pp.137-148
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• 2006

Roadside trees that are managed by the local government play important roles to enhance the city lifestyle in many ways. However, because of insufficient human resources that monitor fields and regulations, most roadside trees were left unprotected and lacked the professional management. Also, due to the lack of financial support, pesticides or treatments have rarely been done in a proper time. To solve this existing matter, we have proposed concrete methods that include a latest communication technology, and developed an on-site management system and a web-monitoring system for roadside trees. Our successful research includes efficient approaches to identify an individual tree and integration of both field works and internal work processes with wireless communications and web displays to monitor the roadside trees.

• Korean Journal of Plant Resources
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• v.21 no.1
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• pp.5-11
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• 2008

This study examined the characteristics of Pinus thunbergii community that forms a windbreak forest around the coast of Gwanmaedo located in Jodo-myeon, Jindo-gun, Jeollanamdo which is located in the south-western areas of Korea from December 2005 to April 2007 and to suggeste the ecological management methods of coastal windbreak areas. P. thunbergii community, a coastal windbreak forest of Gwanmaedo, was classified into disturbance, growth, mixture, stability, and back mountain vegetation according to major companions species and vegetation types. P. thunbergii community of disturbance and growth vegetation needs active management through tree thinning, mowing, weeding out, use of rest space, and felling sick pine trees. P. thunbergii community of mixture, stability, and back mountain vegetation needs active preservation of a coastal windbreak to restore natural vegetation by making a windbreak walk and a forest buffer zone and inducing vegetation succession. Accordingly, in this study, ecological management methods were suggested according to the actual state of distribution by habitat characteristics of coastal windbreak areas such as management of beaches and surrounding area of idle lands, restoration of back wetlands, inhibition of foreign plants, maintenance of diversity of species and habitats, and prevention of aging and spread of damage from insects.

• Korean Journal of Medicinal Crop Science
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• v.4 no.3
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• pp.265-268
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• 1996

According to the research of the cultivation result of Gardenia for 5 years to investigate its cultivation conditions and problems, the development of the variety with early mature and high yielding is urgent and that of rooted cutting cultivation method by the experiment of rooted cutting, bed soil, growth regulator and cutting period are pressing. The development of cultivation method with planting year, planting density, supplementary period and amounts of supplementary of Gardenia planted on growing field are required and for the disease and insect pest control, the research of the cultivation method with disease and insect pest resistance is ne­eded by auxotrophic fertilizing and organic agricultural method, not by agriltural chemicals.

• Journal of Plant Biotechnology
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• v.42 no.4
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• pp.298-311
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• 2015

Grape is one of the important fruit crops around the world, and exposed to disease and pests, and internal or environmental stresses in the vineyards. Breeding and cultivation of new varieties of high quality-grapes resistant to diseases and pests and tolerant to stresses are the most important steps in the grape production. However, conventional breeding has laborious and time-consuming procedures in maintaining and selecting seedlings in the fields. Development of molecular breeding technology through understanding of molecular mechanism of useful traits can be used as an alternative strategy to improve the efficiency of grape breeding program by cross hybridization in grape development programs. The completion of the grape genome sequencing project provided the way to discover the novel genes and to analyze their functions. Comparative genomics, transcriptomic analysis, and the genome-wide identification and analysis of useful genes as well as development of molecular marker for valuable traits could provide novel insights into fruit quality and the responses to diseases and stresses, and can be used as important information in molecular breeding programs for grape development.

• Journal of Korean Society of Forest Science
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• v.55 no.1
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• pp.47-54
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• 1982

Soft X-ray photography was used to study some characters of seeds, such as fullness, damage by blight and harmful insects and degree of mechanical damages, degree of development of embryos and endosperms, size and position of cotylendons, existence and position of twin seed. Thirty nine species of woody plants (31 angiosperms and 8 gymnosperms)and four species of herbs were examined in this study. The results showed that through the mechanism of the selective sensitivity of seed structure of soft X-ray, seed characters mentioned above could be recognized regardless of size of seeds and thickness of seed coat. We concluded that it is possible to use soft X-ray photography reliably to find out the various characters of seeds.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.5
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• pp.558-562
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• 1996

The growth and yield of Job's tears (Coix lacryma-jobi L.) under the flooded paddy and upland (dry paddy) field conditions were compared at three sowing dates and two planting densities. Job's tears grown under flooded paddy field was much shorter in plant height, but greater in number of tillers than those grown under upland. Photosynthesis rate of Job's tears grown under flooded paddy field was higher and the weight of dry roots heavier but the damages of pest and leaf blight disease smaller than those grown under upland. For the above mentioned reasons, the grain yield of Job's tears grown under flooded paddy field was higher by up to 85% than that grown under upland. There was no significant difference in grain yield between the planting densities. The earlier sowing brought about the less grain yield in upland field condition, while sowing plot on the 15th of May showed the highest grain yield in the flooded paddy field condition.