• 제목/요약/키워드: Leaf characteristic

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돌콩 , 돌동부 , 화이트 클로버의 조직별 Esterase Isozyme 변이에 관한 연구 (Esterase Isozyme Variation in the Tissues of Glycine soja S. and Z. , Vigna vexillata var. tsusimensis Matsmura , and Trifolium repens L. in Korea)

  • 이성규
    • 한국초지조사료학회지
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    • 제12권4호
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    • pp.253-259
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    • 1992
  • The esterase isozyme in tissue of wild legume plants were separated by horizontal starch gel electrophoresis. Extracts used in this study were prepared from fully expanded young leaf, cotyledon and radicle of seedling and root-nodule of Glycine sola, Vigna vexillata var. tsuscmensis and Trifoliwn repens. The results are as follows; 1. Each tissue examined had a characteristic banding pattcrn. Number of bands in each species, G. soja, V. vexillata, and T . repens, were 14, 8 and 1 1 bands, respectively. And difference in esterase isozyme bands were greater from tissue to tissue than difference between habitat. 2. Est-I, Est-2. Est-3 and Est-4 in G. soja, Est-I in V. vexillata and Est-l and Est-2 in T. repens showed strong cnzyme activity than other enzyme. 3. Esterase isozyme variation in G. soja and T . repens showed more variety than V. vexillata. This is resulted from many genotypic differences within species. 4. The main enLyme among thc esterase isozyme were Est-I. Est-2, Est-3 and Est-4.

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수비즈' 저택을 통해서 본 Rococo 양식의 특성에 관한 연구 (A Study on the Characteristic of Rococo Style in the Soubise Mansion (hotel de Soubise))

  • 한경희
    • 한국실내디자인학회논문집
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    • 제2호
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    • pp.46-53
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    • 1994
  • The Soubise Mansin which construction ended in the latter half of 1730s has several rooms which symbolize Rococo which appeared in the 18 century. The work of the Soubis Mansion done by an architect, Boffrand , is a significant work in which he had introduced a new style of building , Rococo, based on a style of Regency, thereby showing a big leaf in that kind of art. In other words, with the elements already established in the days of Regency-white wood panel, gold molding, mirror technique, etc. -and the characteristics of unprecedent, outstanding spatial forms and Rococo decoration introduced. Rococo had enjoyed its peak of full flourish within the moderation of being never excessively magnificent, beautiful, and dignified. It is a remarkable thing that a model of such perfect ideal beauty was suggested even in the begining state of Rococo and it is deemed that such a point resulted in such influence on other places like the Versalilles Palace, etc.

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이탈리안 라이그라스 채종시기별 건물생산능력 및 생육특성 (Groeth Charateristics & Matter Yield Ability According to Seed Production Time of Italian Ryegrass)

  • 채재석;김영두;김호중;박태일
    • 한국초지조사료학회지
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    • 제16권1호
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    • pp.39-46
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    • 1996
  • The experiment was conducted to inxvestigate matter production ability and growth characteristic variation for Italian ryegrass seed of introduced variety and the different seed production time of the next generation in paddy field at Iksan and Kyehwa experiment field from 1987 to 1988. Germination rate is good at seed production of 35 days before and after heading with introducced variety. Also, Early growth before wintering, dead leaf rate and regenerating day is same tendendy. Panicle numbers per hill like that and heading date is for 15~20 days after heading seed is late about three days, but 35 days before and after heading seed is early about one day. Fresh and drymatter yield at the different cutting time shows decrease in 15~25 days after heading seed but 35 days before and after heading seed is same or increase trend, it's notable at Kyehwa paddy field in reclaimed land. In case of feed value according to cutting time differ little against introduced seed.

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식생구조에 따른 솔잎흑파리개체군 동태에 관한연구 (Studies on the Population Dynamics of Pine Needle Gall Midge, Thecodiplosis japonensis, by Diversity of Vegetation Structure)

  • Ri, Chong Un
    • The Korean Journal of Ecology
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    • 제6권1호
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    • pp.33-44
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    • 1983
  • Vegetatiion structure and population dynamcis of pine needle gall midge were investigated from 1980 to 1982 at the southern part of Palgong mountain near Daegu. The results of investigation at the areas of A (pure stand), B(30% mixed forest) adn C(60% mixed forest) were as follow; Vegeation of 3 areas were not classified by the species diversity, but by the unequal distribution of Alnus hirsuta, Robinia pseudo-acacia, Lespedeza cyrtobotrya, Quercus variabilis and vitality of Pinus densiflora at the area C was low, due to shadow by broad-leaf trees. Soil environmental factors at 3 areas not characteristic, but the average of humus contents showed high significance and the order was A

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야생딱총나무(Sambucus williamsii var. coreana Nakai)의 조경식목 화를 위한 기초 연구 (Studies on the Sambucus silliamsii var. coreana Nakai for Landscape use)

  • 김정미;박용진;이기훤
    • 한국조경학회지
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    • 제21권1호
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    • pp.139-148
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    • 1993
  • The present experiments have been conducted to find out the plant's growth environments habitate, mode of life, characteristic of photosynthesis, habit of growth and propagation. The results of this study are as follows: 1. Sambucus williamsii var. Coreana distributes around all sides of native site without having any relation to altitude, inclination and direction. 2. In the native site, Robinia pseudo - acacia and its neighboring species were Prunus yedoensis, Acer pseudo-sieboldianum, Lindera obtusiloba and Staphylea bumalda. From 21 to 41 types of species were located in the vegetation of the quadrat area. 3. According to the variation of leaf temperature with the result of the change of net photosynthetic rate, the optimum temperature for growth is $25^{\circ}C$. 4. The rooted rate of vegetative propagation was the highest at 100ppm IBA plot and the lowest at 200ppm BA plot. 5. The rooted rates of Sambucus williamsii var. coreana in perlite 50% bed, vermiculite bed and peatmoss 50%+sand 50% bed are higher than others.

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감나무 둥근무늬낙엽병균 Mycosphaerella nawae 분생포지의 2창 전염원으로서 역할 (Further Evidence that Ramularia-type Conidia in vivo Plays a Role as a Secondary Inoculum of Mycosphaerella nawae)

  • 권진혁;강수웅;박창석;김희규
    • 한국식물병리학회지
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    • 제14권5호
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    • pp.393-396
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    • 1998
  • The characteristic Ramularia type conidia of Mycosphaerella nawae were formed on naturally infected leaves. Artificial inoculation with the conidia induced typical symptom on leaves, which was not distinguishable from those of ascospore infection, which has been considered as a primary inoculum source in nature. Also the morphology of the conidia produced on PDA was not different from those formed on artificially inoculated leaves or on naturally infected leaves at later stage of symptom development. Accordingly, we report the role of the conidia as a secondary inoculum of the circular leaf spot pathogen of persimmon for the first time.

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Tree Species Preference and Inter-specific Difference of Foraging Maneuver, Trees and Location among Four Canopy-dwelling Birds at High-elevation Temperate Deciduous Forest in Mt. Jumbongsan

  • Park, Chan-Ryul
    • Animal cells and systems
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    • 제9권1호
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    • pp.41-46
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    • 2005
  • This study was conducted to reveal tree species preference and inter-specific difference of foraging behavior among four canopy-dwelling birds at forest dominated by Quercus mongolica, Acer pseudosieboldian and Carpinus cordata at 1,000 meters above sea level during breeding season of birds from 1995 to 1997 in Mt. Jumbongsan. Breeding birds were about 25 species and dominant birds were Erithacus cyane, Parus ater and Parus palustris. A relatively high number of bush-nesters can be a characteristic of breeding bird community at study area. Three gleaners (Tits, P. varius, P. palustris and P. ater) selectively preferred the trees irrespective of dominant tree species, whereas bark foragers (Nuthatch, Sitta europaea) utilized the dominant trees. The four birds showed significant inter-specific difference in use of foraging location, but the three tits did not show significant inter-specific difference in use of foraging maneuver and trees. Closely related tits may coexist with each other by inter-specific different use of foraging location determined by foliage structure and leaf arrangement.

레벨링밸브를 가진 공기스프링 현가장치의 승차감 및 조종안정성 해석 (Ride and Handling Analysis of An Air Spring Suspension with Leveling Valve)

  • 탁태오;박종훈
    • 산업기술연구
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    • 제20권B호
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    • pp.105-113
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    • 2000
  • Air springs are now widely used in bus or truck suspensions due to their advantages over conventional metal spring as coil or leaf springs. Air springs have soft spring rates, which give better ride quality, and additional leveling system provides constant ride height and maintains almost same vertical natural frequencies. A mathematical model of an air spring suspension system with height control system is constructed and dynamic responses of the suspension system are investigated in the light of leveling valve motion characteristic, vertical motion natural frequency. Also, using a full vehicle model, handling characteristics of an air spring suspension is studied and the results are compared with real test results, which shows good agreements.

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Study on Response of Ecosystem to the East Asian Monsoon in Eastern China Using LAI Data Derived from Remote Sensing Information

  • Zhang, Jiahua;Yao, Fengmei;Fu, Congbin
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.1298-1300
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    • 2003
  • Based on the Leaf Area Index (LAI) data derived from remote sensing information and eco-climate data, the responses of regional ecosystem variations in seasonal and interannual scales to the East Asian monsoon are studied in this paper. It is found that the vegetation ecosystems of eastern China are remarkably correlated with the East Asian monsoon in seasonal and interannual scales. In the seasonal timescale, the obvious variations of the vegetation ecosystems occur with the development of the East Asian monsoon from the south in the spring to the north in the autumn. In the interannual scale, high LAI appears in the strong East Asian monsoon year, whereas low LAI is related to the weak East Asian monsoon year. These further lead to the characteristic of 'onsoon-driven ecosystem' in the eastern China monsoon region, which can be revealed by LAI.

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An Asiatic Lily New Cultivar "Hyehwa" with Unspotted Orange Petals

  • Rhee, Hye Kyung;Cho, Hae Ryong;Lim, Jin Hee;Kim, Kwang Jin
    • 한국육종학회지
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    • 제41권4호
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    • pp.583-586
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    • 2009
  • "Hyehwa" an Asiatic lily cultivar was released in 1998 at National Institute of Horticultural and Herbal Science (RDA), Suwon, Korea. The cross was made in 1991 between Asiatic lily "White Bird", a white colored, and "Avignon", an unspotted scarlet red colored. It was preliminarily selected as A93-20 in 1993. Its multiplication, bulbing growth and flowering characteristic tests were conducted from 1994 to 1998. A new cultivar "Hyehwa" flowers in middle of June and grows 98.7 cm in height. Flowers bloom upward-facing, thick orange (RHS, 28A). Year-round flowering is possible by storage of the bulb under $-1.5^{\circ}C$ conditions. For forcing culture, it is necessary to add calcium to the fertilizer or remove side scales to prevent leaf scorch. Botrytis disease control is needed in the wet season.