• Title/Summary/Keyword: vine

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ABA Increases Susceptibility of Pepper Fruits to Infection of Anthracnose by Collectotrichum acutatum

  • Hwang, Soo-Kyeong;Kim, Joo-Hyung;Kim, Young-Ho;Kim, Heung-Tae
    • The Plant Pathology Journal
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    • v.24 no.4
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    • pp.400-406
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    • 2008
  • To examine the relationship between plant hormones and the development of pepper anthracnose, we investigated the effects of several plant hormones on the progression of disease symptoms. Of the five plant hormones examined, abscisic acid (ABA) increased the lesion length and disease incidence on detached fruits of Capsicum annuum cv. Nokkwang. The simultaneous application of ABA with inoculation of Colletotrichum acutatum JC24 resulted in increased lesion length, depending the concentration of ABA applied. Additionally, application of ABA caused the development of pepper anthracnose in fruits of Capsicum baccatum cvs. PBC80 and PBC81, which were previously resistant to the disease. Furthermore, ABA administration rendered increased pathogenicity of other isolates of C. acutatum BAC02063, PECH10, and TCBNU3 obtained from the Chinese matrimony vine, peach, and tea tree, respectively. Our data suggest that exogenous ABA may result in the suppression of defense mechanisms of pepper fruits against anthracnose, which leads to a change in the susceptibility of pepper fruits and the development of pepper anthracnose.

Comparative Studies on the Growth and Differentiation in Three Different Varieties of Hop (Hop의 생장과 분화에 대한 식품간의 차이에 관하여)

  • 임웅규
    • Journal of Plant Biology
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    • v.17 no.4
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    • pp.11-17
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    • 1974
  • The present investigation dealt with observation and experiments concerning the growth and differentiation of hop plant, using the varieties of Cascade(C), Shinshuwase(Sh), and Hallertau(H). The results were as follows: (1) Life cycle of hop plants. The annual growth period of hop plant was devided chiefly into 3 phases, dormant, vegetative and reproductive. (2) Growth of main stem. The hop vine begun to grow in the middle of May and grow vigorousely in the middle and latter of June, then gradually decline or stops at the middle of July and the early of August. (3) Growth of lateral vines. By the statistical analysis, it is judged that the varieties of H and Sh were more grown than that of C. H and Sh were not significant, but H and Sh from C were significant in 5% level. (4) Fresh weight and water content of hop cone. Hop cone in fresh weight of C variety was higher than those of other two varieties and water content of hop cone was decreased with time elapse in three races together. (5) Growing point. Histological view of hop varities in each was different. C showed form of sweet potato, H showed form of round, and Sh showed form of ellipse. (6) Shape of the leaf. C and H were 3 lobes, but Sh is 3∼5 lobes. Generally, the color is dark green. (7) Hop cones. Hop cones are as follows.

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Controlling Mikania micrantha HBK: How effective manual cutting is?

  • Rai, Rajesh Kumar;Sandilya, Madan;Subedi, Rajan
    • Journal of Ecology and Environment
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    • v.35 no.3
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    • pp.235-242
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    • 2012
  • Mikania micrantha, a neo-tropical vine, is spreading rapidly in the tropical part of Nepal and is now threatening the rural ecosystem including biodiversity and rural livelihoods. However, no attempt has been made to control the spread of M. micrantha. As a result, the vines are spreading freely and rapidly. After a thorough literature review and assessment of forest management practices, we proposed a manual cutting method, as it suits the Nepalese situation for several reasons: required labor is readily available, as local communities are managing forest patches, and the method does not have any potential adverse effects on non-target native species. Experimental plots were laid out in August 2011 to examine the effectiveness of manual cutting. Two different site types based on canopy coverage were selected and divided into three blocks based on cutting strategy. Four treatments were assigned across the experimental plots following a complete block design. We harvested above-ground biomass according to the assigned treatment. The results suggested that there should be at least two consecutive cuttings within a 3-week interval before flowering, and that three consecutive cuttings resulted in 91% mortality of the vines. In addition, cutting promoted regeneration of native plant species. Employing regular cutting operations can modify understory shade enhancing regeneration of native species, which is a desirable condition to constrain proliferation of M. micrantha. Periodic cuttings reduced the competitiveness of M. micrantha regardless of canopy openness, but native ground cover should be retained.

Effect of Monosporascus Root Rot Infection on Photosynthetic Activity and Plant Growth of Oriental Melon (검은점뿌리썩음병 감염이 참외의 광합성 및 생육에 미치는 영향)

  • Heo, Noh-Youl;Lee, Yong-Bum
    • Research in Plant Disease
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    • v.8 no.4
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    • pp.245-249
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    • 2002
  • Monosporascus cannonballus, a soilborne ascomycetes is recently described in Korea that causes root rot/vine decline of cucurbits. The effect of Monosporascus root rot disease on photosynthetic activity and growth was studied on oriental melon plants. At harvest stage, photosynthetic activity of diseased oriental melon plants was lower and stomatal resistance was higher than healthy plants, while xylem exudates were not observed in diseased plants. There was no difference in mineral contents of the leaves and stems between diseased and healthy plants. Leaf area, fresh and dry weights, and fruit weights of the plants were markedly decreased in diseased plants compared to those of healthy plants.

A Study on Mordern Hanbok Design Applied by the Costume in Koguryo Mural Painting (고구려 고분벽화의 복식을 응용한 현대 한복 디자인 연구)

  • Kim, Ok-Soon;Jin, Kyung-Ok
    • Fashion & Textile Research Journal
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    • v.8 no.2
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    • pp.161-167
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    • 2006
  • The purpose of this research are to identify the nature of artistic beauty of Kokuryeo dresses and to apply the artistic beauty, formative uniqueness, and esthetic value of Kokuryeo in the modern Korean dress design for creation of new designs. Significance of this research lies in the fact that beauty of traditional dresses possesses highly valuable importance for application to modern fashion design processes. Kokuryeo dresses basically comprised of Yu, Sang, Go and Po, and contains within abstract beauty along with emphasis on geometric elements like dots, lines, and surfaces. Red, Black, Violet, Verdant and scarlet colors were moderately used against the mainly white canvas, and different colors were often used for the top and the bottom. Silk, Hemp cloth and Wool were used for different social levels or ranks, and from the wide variety of colors and patterns of the dresses, such as Round-patterns, Cloud-patterns and Vine-patterns, worn by the people illustrated on the wall paintings, it appears that various materials were used. Vertical hems, Yu (shirts), Sang (skirts), noblemen's dresses, kings' dresses, etc. from Kokuryeo tomb wall paintings were applied, and various dying methods, natural materials and sewing methods were used to recreate the unique features of Kokuryeo dresses in modern designs in an attempt to recreate the esthetic value of Kokuryeo dresses.

A Study on the Figuration of Floral Pattern of Baroque Textiles (Baroque직물에 나타난 floral 패턴의 조형성)

  • 이선화;권영숙
    • Journal of the Korean Society of Costume
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    • v.52 no.7
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    • pp.1-11
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    • 2002
  • The shape of floral Pattern in the Period of Baroque could be divided single. bunch and vine. The style of representation was stylized, abstract and realistic. the most of style was stylized. The type of composition was fullness, independent and scattered. Floral patterns were shaped simple and complex and components of design could be classified into flower and leaf. flower and fruit. flower and band. bunch of flower, flower and geometry. flower and pot, flower and animal. flower and crest. Kinds of flower were tulip. common marigold, lily, carnation, small bel]flower. lotus, acandus leaf, pomegranate, strawberry. pine cone and abstract anonymous flower which were unfolded by repeat. Characters of floral Pattern were classical elegance, taste of royalty and lively and damask, velvet, brocade which made with gold and silver so, those were a very brilliant and gorgeous. Characters of design were illustrated plane style and stylization where developed arranged on front by repeat or repeat symmetric of vertical. Art, costumes and textiles in this era were a very rich and colorful. The result of study on Baroque's floral pattern will be used to develope a various textile design and chance to be adopted classical pattern into aesthetic value in our time.

The Study of Adaptable Plant Species according to Warmth Index using RCP 8.5 Scenarios in Cheonan-Si (RCP 8.5 시나리오를 이용하여 온량지수에 따른 천안시 적응 가능한 식물종 연구)

  • Kong, Seok Jun;Shin, Jin Ho;Yang, Keum Chul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.3
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    • pp.19-30
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    • 2013
  • This study was proposed to adaptable species according to climate change using warmth index(WI) in Cheonan-Si. RCP 8.5 was used to estimate change of warmth index(WI) depending on climate change in Cheonan-Si. Climatic change of Cheonan-Si was estimated to change from cool temperate forest central zone to warm temperate forest zone. The following plant species will survive within WI change of Cheonan-Si from 2010 to 2050 : 18 species in the tree layer including Quercus serrata, Q. variabilis, Pinus densiflora, Q. acutissima etc.; 28 species in the shrub layer including Rhus trichocarpa, Lindera obtusiloba, Zanthoxylum schinifolium etc.; 24 species in the herb layer including Oplismenus undulatifolius, Carex lanceolata, etc.; 12 species in the vine plants including Smilax china, Cocculus trilobus, etc.

Heavy Metal Uptake by Native Plants in Mine Hazard Area (광해지역 토착 자생식물에 의한 중금속 흡수)

  • Choi, Hyung-Wook;Choi, Sang-Il;Yang, Jae-Kyu
    • Journal of Soil and Groundwater Environment
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    • v.15 no.3
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    • pp.27-33
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    • 2010
  • The purpose of this study was in search of native plant species showing metal-resistant property and excessively accumulating heavy metals in metal-contaminated soil or abandoned mines as well as in evaluation of applicability of phytoremediation. In the study area, species showing excessively accumulating heavy metals were a shepherd´s purse, pampas grass, a Korean lettuce, a Hwansam vine, the Korean persicary, a foxtail, a goosefoot, and a water pepper. The first screened plant species in Sambo mine were as shepherd's purse, Korean lettuce and pampas grass Among them the shepherd´s purse can be excluded because it is a seasonal plant and has lower removal capacity for heavy metals. The Korean lettuce was also excluded because of having lower removal capacity for heavy metals. Pampas grass is a highly bionic plant species constantly growing from spring. However it has weak points such as little accumulation capacity for zinc as well as small values of an accumulation factor and a translocation factor. Another problem is regarded as removal of roots after the clean up if pampas grass is applied to a farmland. In Sanyang mine, wormwood and Sorijaengi were considered as adaptable species.

The Characteristics of Excavated Fabrics from the Couple's Tomb of Jinju Ryu (진주류씨(晉州柳氏) 합장 묘 출토직물에 관한 연구)

  • Cho, Hyo-Sook;Lee, Eun-Jin
    • Journal of the Korean Home Economics Association
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    • v.45 no.2
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    • pp.51-62
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    • 2007
  • This study explicates some properties of the fabrics used in the 16th century by examining and analyzing the 90 pieces of fabric excavated from the graves of Mr. Ryu of Jinju and his wife Mrs. Park of Euiin. The fabrics were classified into silk tabby(紬), thin silk tabby, satin damask(段), complex gauze(羅), mixture fabric with silk and cotton(絲棉交織), cotton(棉布) etc. Compared to other contemporary fabrics excavated previously, the fabrics unearthed from the couple's graves presented very naive feelings. Patterned satin damask occupied a small portion. In the case of plain fabric, little filament silk tabby(絹) or thin filament silk tabby(細紬) was unearthed. Important data on the history of Korean costumes are provided by the noteworthy, first-ever excavation of a small cap made of complex gauze(羅) and the tiger-leopard embroidered patches called hyoongbae(胸背), which were worn on the front and back of official robes made of tabby with supplementary gold thread(金線). Only 3 pattern types could be clearly identified in form, cloud pattern, lotus and vine pattern(蓮花蔓草), and small flower and treasures pattern(七寶細花). These three patterns are very similar to those of other 16th century fabrics unearthed previously in terms of the form and arrangement of patterns.

Analysis of Passive Cooling Effect of Membrane Shading Structure and the Tree by Field Observations in the Summer (하절기 복사환경 관측을 통한 수목과 일사차폐 막 구조물의 자연냉각효과)

  • Choi, Dong-Ho;Lee, Bu-Yong
    • Journal of the Korean Solar Energy Society
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    • v.27 no.4
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    • pp.137-146
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    • 2007
  • This study is about the passive cooling effects of three outdoor solar shading facilities as trees, pergola with wistaria vine and membrane shading structure, which are expected to provide cool spots in the summer. Field observations of measuring thermal environment of selected facilities is executed. Thermal environment measuring was categorized as short wave radiation, long wave radiation, net radiation, globe temperature, surface temperature measured by infrared camera. Heat transfer mechanism is analyzed with overall data from field measurement. Results from this study are as below; 1) Radiation balance measured on shaded surface under membrane shading structure was 17%($86W/m^2$) of the unshaded surface radiation balance($511W/m^2$). 2) Surface temperature comparison between vegetation and membrane of the shading structure is performed at 3 o'clock in the afternoon. Surface temperature of vegetation was same as air temperature and that of membrane was $5^{\circ}C$ higher than air temperature. Vegetation transpiration is considered as the causing factor which make those differences. 3) Results from this study could be used as fundamental data for reducing heat island phenomena and continuos research on this subject would be needed.