• Title/Summary/Keyword: Woody plant

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Resources of woody plant in Taejon Area, Korea

  • Kang, Shin-Ho;Nobukazu Nakagoshi;Ko, Sung-Chul
    • Plant Resources
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    • v.3 no.1
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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).

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Study on Use of Native Medicinal Woody Plants in the Chonnam Area (전남지역 자생 목본약용식물의 이용에 관한 연구)

  • Kim, Chae-Hyun;Jeong, Jong-Gil
    • The Korea Journal of Herbology
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    • v.23 no.1
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    • pp.39-44
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    • 2008
  • Objectives : Through surveying the vegetation of woody plants naturally growing in the Chonnam Area. we expect to make good use of the surveyed data for the conservation and utilization of woody plants in the Chonnam Area. And also we hope that we could make a good opportunity to love and conserve the Chonnam Area through this report. Methods : we inspected native and cultivated medicinal woody plants in the Chonnam Area by report and survey, and researched medicinal part through the herbalogy literature. Results : 1. According to the investigation of medicinal woody plant in the Chonnam area, it bears 189 species, 139 genera and 62 families. 2. Rosaceae and Quercus are the biggest share of medicinal woody plants in the Chonnam area. 3. In aspect of medicinal part, roots of 100 species, leaves of 102 species, fruits of 80 species, and barks of 67 species have been using. The leaves part of the most plants are abundantly used. 4. About 30 species of medicinal woody plants are distributed distinctively in Korea. Conclusions : According to the investigation of medicinal woody plant in the Chonnam area, it bears 189 species, 139 genera and 62 families.

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Viral Diseases of Woody Plants in Korea (한국에서 발생한 목본식물의 바이러스병)

  • Lee, Sang Yong
    • Journal of Forest and Environmental Science
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    • v.20 no.1
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    • pp.1-10
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    • 2004
  • New plant viral diseases are being reported every year. However, most of the plant viruses are found on nonwoody plants, such as cereals, vegetables and flowering plants, and relatively few are known on woody trees. On the other hand, 17 viruses have been reported on 11 species of woody plants in Korea, so far. Most of the viral diseases of woody plants are have been reported on fruit trees or ornamental trees. The reason is that the fruit trees or ornamental trees is more important than forest trees in economical aspects. Since many known plant viruses attack several species of nonwoody and woody plants, it is likely that a larger number of viral diseases of woody plants will be discovered as more research is conducted. This paper is an overview about the viral diseases of woody plants reported in Korea.

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Chemical Characterization of Industrial Hemp (Cannabis sativa) Biomass as Biorefinery Feedstock

  • Shin, Soo-Jeong;Han, Gyu-Seong;Choi, In-Gyu;Han, Sim-Hee
    • Korean Journal of Plant Resources
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    • v.21 no.3
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    • pp.222-225
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    • 2008
  • Chemical composition and enzymatic saccharification characteristics of hemp woody core were investigated by their chemical composition analysis and enzymatic saccharification with commercially available cellulases (Celluclast 1.5L and Novozym 342). Hemp woody core have higher xylan and lower lignin contents than its bast fiber. Based on hemicelluloses and lignin composition, hemp woody core is similar with hardwood biomass. However, cellulose was more easily converted to glucose than xylan to xylose and this trend was confirmed both hemp woody core and yellow poplar. Hemp woody core biomass shows higher saccharification than yellow poplar (hardwood biomass) based on cellulose and xylan hydrolysis. With easier enzymatic saccharification in cellulose and xylan, and similar chemical composition, hemp woody core have better biorefinery feedstock characteristics than hardwood biomass.

GC/MS analysis of volatile constituents from woody plants (목본성 식물의 휘발성 성분 GC/MS 분석)

  • Lee, Dong-Gu;Choi, Kyung;Lee, Sang-Hyun
    • Korean Journal of Agricultural Science
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    • v.38 no.4
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    • pp.723-730
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    • 2011
  • To search for the new development of industrial application of woody plants, the chemical composition of the volatile constituents from woody plants (Evodia daniellii, Clerodendron trichotomum, Prunus padus, and Zanthoxylum ailanthoides) was determined by GC and GC/MS spectrometric analysis with the aid of NBS, Wiley Library and RI indice searches. The major constituents were t-ocimene from the leaves of E. daniellii, linalool from the leaves of C. trichotomum, benzaldehyde from the leaves and twigs of P. padus, ${\beta}$-thujene from the leaves of Z. ailanthoides, and 2-undecanone from the stems of Z. ailanthoides. These results suggested that the major volatile constituents of woody plants could be a useful lead compound in the development of functional materials for industrial application.

Effective Application of CF11 Cellulose for Detection of Apple scar skin viroid in Apple

  • Chung, Bong-Nam;Cho, In-Sook;Cho, Jeom-Deog
    • The Plant Pathology Journal
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    • v.25 no.3
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    • pp.291-293
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    • 2009
  • The low virus titer in woody plant tissues and the presence of inhibitor compounds such as polyphenols, tannins and polysaccharides are common difficulties that compromise purification of plant viroids from their woody hosts. A simple, reliable method of RNA isolation using CF11 cellulose column on a microcentrifuge tube scale for detecting Apple scar skin viroid (ASSVd) in apple was developed. Total RNA extracted from leaf, woody bark and the fruit skin was used for reverse transcription. RT-PCR products could be detected from RNA prepared from dormant woody bark, fruit skin and fresh leaves with both the CF11 cellulose column method and NucliSens extractor in February, August and November. Meanwhile, with the RNeasy kit RT-PCR, products were detected only in leaves and not from bark or fruit skin. The PCR product, about 330 base pairs, was analyzed by agarose gel electrophoresis. The CF11 cellulose column method was effective for detecting ASSVd. The method enabled the processing of a large numbers of samples of dormant woody bark, leaf and fruit skin of apple.

Study on the Plants Planted in Rooftop and Their Damage by Insect Pests

  • Han, Il-Gen;Ha, Man-Leung;Lee, Chong-Kyu
    • Journal of Forest and Environmental Science
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    • v.33 no.3
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    • pp.243-255
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    • 2017
  • Plants planted in the green-roofed areas in Busan and Jinju were surveyed. The woody plants investigated in this study were classified into 52 families and 156 species, and the herbaceous plants were classified into 30 families and 97 species. Woody plants mainly planted were Rhododendron yedoense var. poukhanense, R. indicum, C. kousa, P. mume, and E. alatus. However, Pinus spp. were planted in all areas. The main herbaceous species planted were Sedum kamtschaticum, S. takesimense, S. middendorffianum, T. quinquecostatus var. japonica, and A. spathulifolius Maxim. According to surveying the distribution of woody plant pests, they could be classified into six orders, 24 families, and 46 species that usually appeared from April to October but especially between June and September. We investigated 39 insect species in relation to pest damage to leaves, 21 insect species in relation to that of branches, and 39 insect species in relation to that of stems of woody plants.

Exploring Relationships between Urban Tree Plantings and Microclimate Amelioration (도시 수목식재와 미기후 개선의 상관성 구명)

  • Jo, Hyun-Kil;Ahn, Tae-Won
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.5 s.118
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    • pp.70-75
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    • 2006
  • The purpose of this study is to explore the effects of difference in urban tree plantings on microclimate amelioration, and to suggest essential information for quantifying urban energy budgets and energy savings. This study was focused on measuring and analyzing air temperature and relative humidity in summer. Daytime air temperatures at places with 8%, 24%, 44%, 79%, and 100% cover of woody plants were, respectively, $0.6^{\circ}C,\;1.3^{\circ}C,\;2.4^{\circ}C,\;3.5^{\circ}C,\;and\;4.8^{\circ}C$ cooler, compared to a place with 0% cover. A 10% increase of woody plant cover was estimated to reduce the temperature by approximately $0.55^{\circ}C$. The temperature reduction effects were relatively greater between places with lower cover of woody plants than between those with higher cover. Woody plant cover and crown volume were the appropriate indicators which quantified the effects of tree plantings on air temperatures, based on the correlation analysis. Regression equations to estimate temperature change ($Y:^{\circ}C$) using woody plant cover ($X_1:%$) or crown volume ($X_2:m^3$) as independent variables are as follows: $$1nY=3.3233-0.0018X_1\;(r^2=0.99,\;p<0.0001)\;Y=27.5297-0.0019X_2\;(r^2=0.96,\;p=0.0007)$$

A Fundmental Study on the Medicinal Plant For Cut Plants (절화로 이용할 수 있는 약용식물에 관한 기초 연구)

  • 서병기
    • Korean Journal of Plant Resources
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    • v.8 no.2
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    • pp.143-151
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    • 1995
  • The development of medicinal plants for cut plants and landscape plants were conducted through the literiture survey. The results were as follows: We selected 38 species of medicinal plants including 7 medicinal woody plants for cut plant and landscape plants from 450 medicinal plants. There were 8 species of Compositae, 4 species Ranunculaceae, 3 species Rosaceae and Umbelliferae, 2 species Polygonaceae and Campanulaceae respectively. The anthesis of Cornus officinalis, Magnolia denudata, Forsythia koreana of medicinal woody plants flowering before leaf spreading come to early than the anthesis of other medicinal plants. There were 4 species(11%) over 10cm of the flower diameter, 6 species(16%) over 5cm below 10cm, 19 species(50%) over 1cm below 5cm and 9 species(24%) 1cm below. In terms of flower color, 11 species(29%) were white, 9 species(24%) yellow, 6 pecies(16%) red, 5 species(13%) violet and 3 species(8%) were blue aided violet. In terms of the flowering by month, 12 species(32%) on July, 9 species(24%) on May, 6 species(16%) on June and August respectively, and 3 species(8%) on March. The most medicinal plants were propagated by division and seeding easily, but woody medicinal plants of 7 species of this study were propagated by cutting and grafting easily. The percentage of usage of parts of medicinal plants including woody medicinal plants was that roots were 20 species(53%), flowers 6 species(16%), fruits and all part of medicinal plants were 4 species(11%), and seeds and stem including leaves 2 species(5%) respectively.

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A Study on the Period of Flower , Fruit , and Leaf Color of Deciduous Woody Landscape Plants in Korea (낙엽조경수목의 꽃 , 열매 , 잎의 지속기간에 관한 연구)

  • 서병기
    • Korean Journal of Plant Resources
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    • v.7 no.1
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    • pp.35-44
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    • 1994
  • The seasonal flower, leaf and fruit color characterlstics of deciduous woody landscape plants were investigated through the field survey in Suwon, Korea from January 1, 1992 toMarch 20, 1993.The results were as follows ;1. There were 12 cases in the combination of leaf spreading, anthesis, deblossom, fruit coloring,fruit falling, fall foliage coloring and leaf falling of deciduous woody landscape plants(163 spe-cies) investigated. And species of the leaf spreading, anthesis, deblossom, fall foliage coloringand leaf falling were 71(43.9%). And species of the leaf spreading, anthesis, deblossom,fruit coloring, fall foliage coloring, leaf falling and fruit falling were 40(24.5% ).2. The total continuing period of the flowering, fall foliage coloring and fruit coloring of decid-uous woody landscape plants(79 species) investigated varied from 2 months to more than 9months. And the species over 3 months below 4 months were 23(29.2%).3. There were 24 cases in the combination of color of flower, fall foliage and fruit of deciduouswoody landscape plants(79 species) investigated. And the species of the white flower, red fall fo-liage and red fruit were 16(20.3% ).

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