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Effect of Transplanting Angle of Seedling on Root Shape and Growth of Ginseng Plant (Panax ginseng C.A. Meyer (묘상의 이식각도가 고려인삼의 체형 및 생육에 미치는 영향)

  • 이성식
    • Journal of Ginseng Research
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    • v.20 no.1
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    • pp.78-82
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    • 1996
  • In order to clarify effect of transplanting angle of seedling on shape and growth of ginseng root, ginseng of seedlings were transplanted with $60^{\circ}$ and $90^{\circ}$ respectively, and the root characters of 2-, 4- and 6-year-old ginseng were investigated. The length of main root with 45$^{\circ}$was above 7 cm (standard) but that of $60^{\circ}$ and $60^{\circ}$ was below 7 cm (standard). Number of good lateral root was above 2.3 ea for $45^{\circ}$, 0~$30^{\circ}$, but below 2.3 ea per plant for 60~$90^{\circ}$ respectively. Root fresh weight with $0^{\circ}$, $30^{\circ}$, $45^{\circ}$ was heavier than that with $60^{\circ}$ and $90^{\circ}$. Root disease infection rate was highest with $0^{\circ}$. There were, no significant difference in stem length, stem diameter, leaf area, comber of palmate leaves and leaflets per plant, ratio of missing plant, root diameter in 2-, 4- and 6-year-old ginseng.

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Taxonomy of the Genus Symphyocladia (Rhodophyta) (한국산 홍조식물 보라색 우무속(Symphyocladia)직물의 분류)

  • Lee, In-Kyu
    • Journal of Plant Biology
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    • v.38 no.3
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    • pp.297-303
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    • 1995
  • Four species of Symphyocladia growing along the coast of Korea were investigated in taxonomic point of view. Characters available for identification of the species were; difference in gross morphology, degree of cortication in vegetative axis, presence or absence of vegetative trichoblasts, and developmental pattern of stichidia. Vegetative structure and reproductive organs in developmental anatomy were similar among species. Branching pattern and occurrence of vegetative trichoblasts adopted for systematic criteria between Pterosiphonieae and Polysiphonieae, and between Symphyocladia and Pterosiphonia were no more confidential. The degree of congenital fusion of laterals with the parent axes was considered as only main character to distinguish Symphyocladia from Pterosiphonia.

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A Study on the Characteristic in Alessandro Mendini Design - Focused on Furniture and Interior Design - (Alessandro Mendini 디자인 특성에 관한 연구 - 가구와 실내디자인을 중심으로 -)

  • Yoo, Yeon-Sook
    • Journal of the Korea Furniture Society
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    • v.26 no.4
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    • pp.364-372
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    • 2015
  • Mendini works architect of magazine. He is a era-transcending designer who started design in late fifties and still works actively. In his design, there are some ordinary emotions which make people easier to approch to than without having any resistance. The purpose of this research paper is to define the traits of Mendini's design work. There are four main characters in his design; post-modernism, combination of art and design, use of contemporary art and traditionary italian colors and redesign. Mendini interpret tradition in modern way. His individuality came from the tradition, and also he modernized italian tradition to it.

Taxonomy of the Genus Sargassum (Fucales, Phaeophyceae) from Korea 2. subgenus Bactrophycus section Halochloa and Repentia (한국산 갈조식물 모자반속(Sargassum)의 분류 II. Bactrophycus아속 Halochloa와 Repentia절)

  • Ok, Jeong-Hyeon;Lee, In-Gyu
    • ALGAE
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    • v.21 no.4
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    • pp.393-405
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    • 2006
  • Eight species of Sargassum subgenus Bactrophycus section Halochloa and Repentia were collected from the coasts of Korea: Sargassum coreanum J. Agardh, Sargassum sagamianum Yendo, Sargassum micracanthum (Kützing) Endlicher, Sargassum macrocarpum C. Agardh, Sargassum autumnale Yoshida, Sargassum siliquastrum (Mertens ex Turner) C. Agardh, Sargassum serratifolium (C. Agardh) C. Agardh, Sargassum yezoense (Yamada) Yoshida et Konno. These species were investigated on morphological variations and geographical distributions in Korea. The valuable taxonomic characters between similar species of these section were discussed with special reference to types of holdfasts, shape of main branch, leaves and vesicles.

Study for the Standardization of Haematite and Comparison Property before and after Haematite Processing (대자석의 품질기준(品質基準) 및 포제전후의 성질비교)

  • Lee Jang-Cheon
    • Herbal Formula Science
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    • v.12 no.1
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    • pp.177-193
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    • 2004
  • Objectives: This study has been done to compare the Haematite's composition before and after using processing method and to clarify its quality and naming through the historical herbal books. Methods: I studied the Haematite and processed Haematite using physical and chemical methods which contain microscopic analysis, X-ray diffraction analysis, thermal analysis, XRF, ICP, etc, to compare the compositions and its characters. Results: Haematite is a metallic oxide(Hematite, $Fe_2O_3$). Haematite contains a main ingredients of crude Haematite Fe 40.336% - 62.174%, processed Haematite $50.499%{\sim}62.791%$(a theory value is 69.944% the korean pharmacopoeia wants >45%) and small ingredients, also. Conclusion: A radio-element contents of U, Th contain less than average contents of the lithosphere's U 1.8ppm, Th 7.2ppm.

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Taxonomic Study on the Lichen Genus Coccocarpia (Lecanorales, Ascomycota) in South Korea

  • Wang, Xin Yu;Wei, Xin Li;Han, Keon-Seon;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
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    • v.35 no.4
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    • pp.174-179
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    • 2007
  • Three species of Coccocarpia have been reported from Korean Peninsular. However, there was no revisional study on this genus before. After careful examination of the specimens deposited in the Korean Lichen Research Institute (KoLRI) and collected from main mountain areas of Korea, two species of Coccocarpia, C. palmicola and C. erythroxyli, have been revealed to occur and confirmed in South Korea. The presence and absence of isidia and apothecia are the most important characters for the South Korean species. We provide the detailed description and illustration of the available two species. A key to the species is also provided.

First record of the genus Sinamphiascus (Copepoda: Harpacticoida) from Korean waters

  • Nam, Eunjung;Lee, Wonchoel
    • Journal of Species Research
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    • v.1 no.1
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    • pp.44-55
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    • 2012
  • A harpacticoid copepod, Sinamphiascus dominatus Mu & Gee, 2000 is re-described from the sandy bottom in off Jeju Island of Korea. The genus Sinamphiascus was established with single species, S. dominatus from the Bohai Sea, China. The main diagnostic characters of the specimen from Korea are well matched with the original description, although it has minor discrepancies including the lengths and ornamentation of setae in leg 6 of both sexes, shape of the base on furcal setae and teeth number of labrum in female. However those discrepancies are regarded to the intra-specific variations. This is the first record of genus Sinamphiascus in Korean waters.

Epizootiological study of Echinococcus granulosus(Batsch, 1786) Rudolphi, 1805. in Jeju-do. 1. Incidences of bovine hydatid cyst and its speciation (단방조충(單房條蟲)의 역학적연구(疫學的硏究) : 감염실태조사(感染實態調査)와 아종(亞種)의 결정(決定))

  • Jang, Du Hwan;Oh, Mun Yu
    • Korean Journal of Veterinary Research
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    • v.14 no.1
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    • pp.73-76
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    • 1974
  • A basic survey of Echinococcus infection in cattle slaughtered at seogipo abattoir, Jeju Island was carried out. The incidence of hydatid cyst was 0.4% in the native cattle, that is 4 heads out of 993 heads of the slaughtered cattle. The hydatid cysts with or without scolices were found in the liver and lung, and the speciation of them was determined as Echinococcus granulosus granulosus with the morphological and biological characters. The infection rates of bovine echinococcosis were as high as 6.8% to 27.5% from 1936 to 1940 in Jeju cattle, but it has been found greatly decreased to 0.4% in this survey. The main reason of decrease in the incidence was cleared with the fact that wild dogs were abundant at that times.

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The Genera Babuvirus and Badnavirus in Asia

  • Natsuaki, Keiko T.;Furuya, Noriko
    • The Plant Pathology Journal
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    • v.23 no.4
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    • pp.227-232
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    • 2007
  • In the plant virus world, there are six genera of plant viruses with dsDNA genomes and six genera with ssDNA (Fauquet et al., 2005). The dsDNA viruses are comprised of 4 genera in the Caulimoviridae, the genus Badnavirus and the genus Tungrovirus. The ssDNA viruses are comprised of four genera in Geminiviridae, and the two genera Nanovirus and Babuvirus in the Nanoviridae. The genera Babuvirus and Badnavirus are not well studied in Asia. However, we recognized the significance of two species, Banana bunchy top virus (BBTV) in the genus Babuvirus and Banana streak virus (BSV) in the genus Badnavirus, during the survey of banana viruses in Asia. Their main characters will be introduced in this mini-review.

Effect of Fiber Orientation on Failure Strength Properties of Natural Fiber Reinforced Composites including Adhesive Bonded Joints (접착제 접합된 자연섬유강화 복합재료의 파괴 강도특성에 미치는 섬유방향의 영향)

  • Im, Jae-Gyu;Yun, Ho-Cheol;Lee, Sang-Yong;Renliang, Wang
    • Proceedings of the KWS Conference
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    • 2005.11a
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    • pp.94-96
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    • 2005
  • This paper is concerned with a fracture strength study of composite adhesive lap joints. The tensile and peel tests were carried out on specimen manufactured hybrid stacked composites such as the polyester and bamboo natural fiber layer. The main objective of the work was to test the failure strength of adhesive bonded joints using hybrid stacked composites with a polyester and bamboo natural fiber layer adjacent to the fiber orientation. From results, the load directional orientation, small amount and low thickness of bamboo natural fiber layer have a good effect on the tensile and peel strength of natural fiber reinforced composites. and these characters are have a great influence on fracture strength and failure shape of adhesive bonded joints using hybrid stacked composites in the difference of fiber orientation.

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