• Title/Summary/Keyword: resource plant

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Study on Waxy Hybrid Using Korean Local Maize Lines -I. Growth and Yield Characteristics in Waxy Maize Hybrid Yeonnong × Jaerae (교잡종 찰옥수수에 대한 연구 -I. 찰옥수수 "연농×재래" 교잡종의 생육 및 수량특성)

  • Lee, Hee-Bong;Jung, Jae-Young;Choi, Hyun-Gu;Kim, Gi-Hoon;Kim, Hyo-Gi;Ju, Jung-Il
    • Korean Journal of Agricultural Science
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    • v.28 no.2
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    • pp.65-69
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    • 2001
  • In order to evaluate the characteristics of growth and yield in $F_1$ waxy hybrids using Korean local maize lines, six hybrids including check, Chalok #1, were planted at the experinental field of the Chungnam National University. Stern and ear heights of $Yeonnong{\times}Jaerae$ and $FR805/IK_3{\times}Koryong$ hybrids were higher than the check hybrid. Number of tillers per plant in all hybrids were similar as 0.3 to 0.5 per plant. Ear length of waxy hybrids was longer than 15cm of check hybrid and ear diameter was also thicker than check except $FR805/IK_3{\times}Koryong$ waxy hybrid. A final result, $Yeonnong{\times}Jaerae$ among hybrids was comparatively superior to other hybrids in the test.

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The Distribution and Dynamics between Sexes, Conservation of Natural Populations of a Rare Woody Plant, Juniperus chinensis L. (희귀수종 향나무 자연집단의 분포와 성간 동태 및 보존)

  • Shin, Jae-Kwon;Chung, Jae-Min;Kim, Jin-Seok;Yoon, Chung-Won;Shin, Chang-Ho
    • Korean Journal of Plant Resources
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    • v.28 no.4
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    • pp.400-410
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    • 2015
  • Juniperus chinensis (Cupressaceae) is a valuable woody plant resource, but this rare plant is only distributed in restricted regions in Korea. In this study, we surveyed the geographic distribution regions, variation of sex ratio and the dynamics of natural populations of J. chinensis. in order to establish conservation strategies for the sustainable conservation of this important resource tree. The 17 natural populations of J. chinensis are restrictively distributed in the shore cliffs of (1) Ulleungdo island, (2) Gyeongju-si to Gangneung-si of the eastern coast, the riverside cliff along (3) Donggang-river of Jungsun-gun and Pyeongchang-gun and (4) branch of Nakdonggang-river in Uiseong-gun. The populations in Ulleungdo island showed continuous population distribution of over 200 individuals, but populations in other regions had discontinuous population distribution of under 200. The population of J. chinensis surveyed in Korea was estimated in ca. 3,200 individuals. The sex ratio (male/female) among populations of J. chinensis was diverse with variation from 0.46~1.67 range, but showed no significance. The sex ratio of the total individuals by species level was 0.74, and the percentage of female tree was significantly higher than the male. The results of dynamics analysis within population among regions showed that seedlings and saplings of J. chinensis in three regions surveyed were continuously regenerating. The distribution of DBH class showed a stable population structure of inverse J shape graph, but fragmentation and decrease in populations because of invading broad-leaved shrubs and trees from the surroundings were concerned. Further studies, and in situ and ex situ conservation strategies for the sustainable conservation on natural populations of this rare resources woody plant, J. chinensis in Korea are recommended.

Life Cycle Assessment for the Business Activities of Green Company -2. Mass Balance and Environmental Improvement (녹색기업의 사업활동 전 과정에 대한 환경성 평가 -2. 물질수지 및 환경개선)

  • Shin, Choon-Hwan;Park, Do-Hyun
    • Journal of Environmental Science International
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    • v.22 no.4
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    • pp.425-433
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    • 2013
  • A mass balance of process was calculated by using the analysis of basic unit and environmental assessment of all the processes of Busan fashion color industry cooperative that operates a combined heat and power plant and a bio treatment plant. The mass balance for the combined heat and power plant was done, based on boiler and water treatment processes while each unit reactor was used for the bio treatment plant. From the results above, a resource recycle network, a treatment flowchart for food waste water/wastewater treatment and a carbon reduction program were established.

Plant Resources of Mt. Gamak

  • Kang, Shin-Ho
    • Korean Journal of Plant Resources
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    • v.22 no.3
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    • pp.248-265
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    • 2009
  • This study was performed to investigate the flora and plant resources of Mt. Gamak (537.8 m) from April to October 2007. The collected vascular plants were composed of all 478 taxa including cultivated species, and classified into 410 species, 3 subspecies, 61 varieties, and 4 forms of 284 genera under 94 families. Six taxa of the Korean endemic plants and 4 taxa of the rare and endangered plants were also distributed in this mount. Resource plants were categorized into edible 222, pasturing 208, medicinal 183, stainable 134, ornamental 96, timber 20, fiber 6 and industrial 4 taxa, respectively. Floristic geography of the investigated area was regarded as the boundary between middle parts in floristic pattern of the Korean Peninsula.

Cereal Resources in National BioResource Project of Japan

  • Sato, Kazuhiro;Endo, Takashi R.;Kurata, Nori
    • Interdisciplinary Bio Central
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    • v.2 no.4
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    • pp.13.1-13.8
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    • 2010
  • The National BioResource Project of Japan is a governmental project to promote domestic/international research activities using biological resources. The project has 27 biological resources including three cereal resources. The core center and sub-center which historically collected the cereal resources were selected for each cereal program. These resources are categorized into several different types in the project; germplasm, genetic stocks, genome resources and database information. Contents of rice resources are wild species, local varieties in East and Southwest Asia & wild relatives, MNU-induced chemical mutant lines, marker tester lines, chromosome substitution lines and other experimental lines. Contents of wheat resources are wild strains, cultivated strains, experimental lines, rye wild and cultivated strains; EST clones and full-length cDNA clones. Contents of barley resources are cultivar and experimental lines, core collection, EST/cDNA clones, BAC clones, their filters and superpool DNA. Each resource is accessible from the online database to see the contents and information about the resources. Links to the genome information and genomic tools are also important function of each database. The major contents and some examples are presented here.

Cyanidin 3 - rutinoside chloride (CRC) Regulates Pro-inflammatory Mediators in PMACI-stimulated HMC-1 Cells

  • Jeon, Yong-deok;AYE, AYE;Song, Young-Jae;Soh, Ju-Ryoun;Jin, Jong-Sik
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.04a
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    • pp.106-106
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    • 2018
  • Cyanidin 3 - rutinoside chloride (CRC) is major anthocyanin, found in Schisandra chinensis, is known to have antioxidant, anticancer, anti-inflammatory, tonic, and anti-aging effects in Korea, China and Japan. In the present study, the human mast cell line (HMC-1) was used to investigate the effects on the production of pro-inflammatory mediators. In this study, CRC showed no cytotoxicity in HMC-1. CRC significantly inhibited the secretion of inflammatory cytokines such as tumor necrosis factor $(TNF)-{\alpha}$ and interleukin (IL)-6 in PMA plus A23187 cacium ionophore (PMACI)-stimulated HMC-1 cells. In addition, CRC suppressed the serum levels of IgE. Furthermore, CRC decreased the PMACI- stimulated phosphorylation of mitogen activated protein kinases (MAPKs) such as p-ERK, p- JNK and p-P38. These results indicate that the pharmacological actions of CRC suggest their potential activity for treatment of allergic inflammation through the down-regulation of mast cell activation.

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