• Title/Summary/Keyword: Commercial species

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LOW TEMPERATURE STORAGE OF TRANSPLANTS UNDER DIM LIGHT

  • Kubota, Chieri
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1996.10a
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    • pp.42-53
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    • 1996
  • Storage methods to suppress growth of transplants and maintain their quality are required for successful commercial transplant production, since peak demand for transplants of flower or vegetable species falls during limited periods in spring and fall, due to the seasonal nature of the horticulture industry. Plug seedlings, probably due to their high planting density and limited rhizosphere, easily elongated or overgrown during the holding period before the market or greenhouse space is available. (omitted)

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First Record of Epinephelus areolatus (Perciformes: Serranidae) from Korea

  • Kim, Maeng-Jin;Song, Choon-Bok
    • Fisheries and Aquatic Sciences
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    • v.13 no.4
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    • pp.340-342
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    • 2010
  • One specimen of Epinephelus areolatus, belonging to the subfamily Epinephelinae of the family Serranidae, was collected by a hook from commercial longline fisheries in the coastal waters of Jeju Island, Korea. This species is mostly similar to E. chlorostigma, but the former is distinguished from the latter by having larger brown spots and a white posterior margin on the caudal fin. We propose a new Korean name "Dae-moon-ba-ri" for E. areolatus.

Copepod Parasites of Commercial Bivalves from Korea I. Two New Poecilostomatoid Species from Solen grandis Dunker in the Yellow Sea (한국산 식용 이매패류에 기생하는 요각류 1. 황해의 죽합 (Solen grandis Dunker) 에 기생하는 요각률2 신종)

  • 김일회;주세이호
    • Animal Systematics, Evolution and Diversity
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    • v.7 no.1
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    • pp.1-12
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    • 1991
  • Two new poecilostomatoid copepods , Leptinogaster digita n.sp. and Hermannella soleni n.sp., parasitic in a bivalve Solen grandis Dunker , are described from the Yellow Sea coast of southwest Korea.

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Evaluation of Dietary Essentality of Ten Vitamins for Juvenile Black Rockfish (Sebastes schlegeli)

  • Lee, Hae-Young;Cho, Kee-Chae
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.261-262
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    • 2000
  • Juvenile black rockfish, Sebastes schlegeli is an important commercial species along the coast of Republic of Korea. The black rockfish possesse some desirable characteristics for aquaculture including tolerance to cold water and handling, and receptivity to induced spawning in captivity. (omitted)

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Silkworm-food plant-interaction: search for an alternate food plant for tasar silkworm (Antheraea mylitta Drury) rearing

  • Deka, Manabendra;Gargi, Gargi;Kumar, Rajendra;Yadav, Harendra;Sahay, Alok
    • International Journal of Industrial Entomology and Biomaterials
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    • v.30 no.2
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    • pp.58-63
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    • 2015
  • An experimental rearing of tropical tasar silkworm, Antheraea mylitta Drury was conducted to study silkworm-food plant-interaction and thereby to search for an alternate silkworm food plant. The silkworm-food-plant-interaction was studied with six different food plant species viz. Terminalia tomentosa, Terminalia arjuna, Terminalia belerica, Terminalia chebula of Combretaceae family and Lagerstroemia speciosa, Lagerstroemia parviflora of Lythraceae family. The rearing performance of silkworm on Lagerstroemia speciosa in terms of cocoons per DFL and silk ratio was found comparable with Terminalia tomentosa and Termonalia arjuna, the primary tasar silkworm food plant species. These three plant species also possessed better results in terms of physiological (leaf moisture content and net photosynthesis rate) and biochemical (Chlorophyll, protein, carbohydrate and crude fibre contents) characteristics to support silkworm rearing than Terminalia belerica, Terminalia chebula and Lagerstroemia parviflora. The correlation study between silkworm rearing performance and food plant's constituents indicates commercial perspective of Lagerstroemia speciosa as an alternate food plant for tasar silkworm rearing.

Comparative Morphological Characteristics of Mangrove Oysters (Mangrove Oyster의 형태 비교)

  • YOO Sung Kyoo;RYU Ho Young
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.17 no.4
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    • pp.321-326
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    • 1984
  • Three kinds of mangrove oysters, species of high commercial value in tropical regions, were collected in Cocineta Bay, Venezuella in 1976, at the mouth of Hoffman River, Liberia in 1978 and at the West Coast of Benzina, Indonesia in 1984. Crassostrea rhizophorae from Venezuella showed the most round shell form and greatest shell capacity. In addition, the fatness condition of $9.63\%$ topped the ether two species. Crassostrea tulipa inhabiting Liberia had the most elongated shell form. Although shell capacity of this species was almost similar to Crassostrea rhizophorae, it took up intermediate position in fatness condition with $8.15\%$. Crassostrea beleheri from Indonesia. just as rounded as C, rhizophorae, showed the biggest values in total weight and shell weight but the least fatness with $6.62\%$.

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Pharmacognostical Studies on the Folk Medicine 'JoRitDae' (민간약 조릿대의 생약학적 연구)

  • Ahn, Mi-Jeong;Bae, Ji-Young;Park, Jong-Hee
    • Korean Journal of Pharmacognosy
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    • v.40 no.4
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    • pp.280-285
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    • 2009
  • Korean folk medicine 'JoRitDae' has been used mainly to cure vomiting and cancer. With regard to the botanical origin of 'JoRitDae', it has been considered to designate the rhizome of Sasa species (Gramineae), but there was no pharmacognostical confirmation on it. To clarify the botanical origin of 'JoRitDae', the anatomical characteristics of the rhizome of Sasa species growing wild in Korea and Japan, Sasa borealis, S, kurilensis, S. quelpaertensis, S. charatacea and S. senanensis were studied. As a result, it was found the morphological criteria for the five Sasa species that could discriminate them by the number of cell layers in cortex, the ratio of thickness of cortex to rhizome radius, the number of cell layers in the vascular bundle sheath, the total number of vascular bundle and thickness of vascular bundle sheath. According to these criteria, it was clarified that the commercial folk medicine 'JoRitDae' was the rhizome of Sasa borealis.

Antibacterial Activity of Macromycetes Mycelia and Culture Liquid

  • Krupodorova, Tetiana A.;Barshteyn, Victor Yu.;Zabeida, Elena F.;Pokas, Elena V.
    • Microbiology and Biotechnology Letters
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    • v.44 no.3
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    • pp.246-253
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    • 2016
  • The antibacterial activities of thirty mushroom species belonging to Basidiomycetes and Ascomycetes, cultivated on two liquid media, were evaluated against gram-positive (Bacillus subtilis and Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria by the disk diffusion method. All of the mushrooms, except Auriporia aurea, Fomes fomentarius, and Lyophyllum shimeji, showed different antibacterial activity levels—from 9.5 mm in diameter of the inhibition zone to full inhibition of growth of the test bacteria. The antibacterial activities of Crinipellis schevczenkovi, Hohenbuehelia myxotricha, Oxyporus obducens, and Spongipellis litschaueri were observed for the first time. The antibacterial potential of culture liquids of the investigated species was higher than that of their mycelia activity. Dependence of the intensity of antibacterial activity on the culture medium was shown. The antibacterial efficiency of the most active species (Lentinus edodes, Piptoporus betulinus, and Phellinus igniarius) was verified and compared with those of some commercial antibiotics and natural essential oils of Salvia and Eucalyptus. The culture liquid of Piptoporus betulinus, obtained after cultivation on glucose-peptone-yeast culture medium, is a potential substance for further creation of antibacterial products.

Study on Movement of Wood (목재(木材)의 치수변동(変動)에 관(關)한 연구(硏究))

  • Jung, Hee-Suk;Lee, Phil-Woo;Lee, Nam-Ho
    • Journal of the Korean Wood Science and Technology
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    • v.14 no.2
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    • pp.36-42
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    • 1986
  • Both the control and heated specimen of oak, hornbean, alder, poplar, red pine and pitch pine among domestic commercial species and taun imported were used for radial and tangential shrinkage and movement that occurred on changing the relative humidity of the atmosphere from 90 percent to 60 percent at $25^{\circ}C$. The results of this study were as follows. 1. The radial and tangential shrinkage of the control and heated hornbean and oak wood, except alder, of high specific gravity showed greater than species with low specific gravity. The ratio of tangential to radial shrinkage was 1.46 for taun to 2.70 for alder. Green volume specific gravity of the heated and soaked specimen of all species except poplar decreased 1.5 to 3.1 percent. Shrinkage of the heated specimen increased more than that of the control specimen, and antishrink efficiency of all timbers except alder had negative value. Shrinkage from green to air dry of treated specimens increased more than case of total shrinkage, and radial shrinkage of those specimen increased greater than tangential shrinkage. 3. The movement of the heating specimen for 120 hours decreased than those of the control and the heating specimen for 240 hours. The movement of heating oak, poplar, red pine and pitch pine (or 240 hours increased rather than those of the control specimen.

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Pharmacognostic Evaluation of Ratanjot-Arnebia nobilis Rech.f.

  • Khatoon, Sayyada;Mehrotra, B.N.;Mehrotra, Shanta
    • Natural Product Sciences
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    • v.9 no.4
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    • pp.286-290
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    • 2003
  • Ratanjot is attributed to eight species of Boraginacae species belonging to genera Alkanna, Arnebia, Maharanga and Onosma and regarded as one of the important herbal drugs of indigenous systems of medicine. The root and root stock, which form the actual drug, are considered to be an anthelmintic, antipyretic and antiseptic. They are also claimed to be useful in burn, eczema, wounds and eruptions, and used for treating the diseases of eyes, bronchitis, abdominal pains, itch, etc. Several workers reported that the Naphthaquinones (arnebins), the main active constituents of the drug, are responsible for its colour and therapeutic efficacy. It is claimed that the Arnebia nobilis was imported to India from Afghanistan but the red coloured roots resembling with A. nobilis were found to be gathered by local people for commercial purposes during the course of botanical surey of Himalayan region. Hence, it is decided to evaluate Arnebia nobilis pharmacognostically. The important macro-microscopic features of this species are roots 1-5 cm broad; outermost xylem with broad vessels and innermost with groups of radially arranged narrow vessels while the middle region occupied by alternate rings of clusters of broad and narrow vessels and presence of pith. Besides the percentage of arnebin-1, -3 and 4 are 9.37, 10.53 and 1.72 respectively.