• Title/Summary/Keyword: <식물학(植物學)>

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Uber die atherischen Ol-Drusen in Solidago Arten (미역취속 식물의 정유세포에 대하여)

  • Shin, Soon-Hee
    • Korean Journal of Pharmacognosy
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    • v.11 no.2
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    • pp.81-84
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    • 1980
  • 국화과에 속하는 Solidago속 식물의 정유가 꽃, 잎, 줄기등 이 식물 전 기관에 분포되어있는 이생세포간근에 함유되어 있다는 사실에 기초를 두고, 선기능을 가진 세포들이 일반세포에 비해 강한 dehydrogenase활성을 나타낸다는 사실을 이용하여 2,3,4-triphenyltetrazoliumchloride를 써서 분비강주변의 세포들의 선기능을 조직화학적으로 증명하였다.

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Signal Characteristics of Acoustic Emission from Angiosperm and Gymnosperm by the Water Stress (물 스트레스를 받는 속씨식물과 겉씨식물에서 검출된 음향방출의 신호특성)

  • Nam, Ki-Woo
    • Journal of the Korean Society for Nondestructive Testing
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    • v.23 no.5
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    • pp.480-487
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    • 2003
  • To improve environmental control in various plants, signal characteristics of plants have been studied by a nondestructive technique. In this paper, the acoustic emission (AE) from plants was analyzed for water stress dependency. AE signals were taken from gymnosperm and angiosperm. AE sensor detected AE signals from the plant stem underneath the plant surface below the sensor. AE hit-event counts in daytime were more than those in night time, and it was found that the daily hit counts pattern was strongly affected by the water stress in the plant. frequency bands of AE signals from the angiosperm was different from those from the gymnosperm. Frequency bands of AE in outdoor condition were in accord with those in indoor having similar conditions.

Distribution of Resource Plants and Naturalized Plants at the Reclaimed Seaside in Songdo, Incheon (인천 송도임해매립지의 자원식물상과 귀화식물 분포현황)

  • Shin, Hyun-Tak;Oh, Hyun-Kyung
    • Korean Journal of Plant Resources
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    • v.20 no.4
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    • pp.312-320
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    • 2007
  • The resource plants at the reclaimed seaside in Songdo was listed 170 taxa: 39 families, 113 genera, 144 species, 23 varieties, 2 forms and 1 hybrid. In those, woody plants were 18 taxa (10.6%) and herbaceous plants were 152 taxa (89.4%). Among 170 taxa listed was confirmed 107 taxa of edible plants (62.9%), 99 taxa of medicinal plants (58.2%), 55 taxa of ornamental plants (32.4%) and 77 taxa of the others (45.3%). Salt plants (Including dune plants) consists of 12 taxa (Scirpus planiculmis, Sllaeda japonica, Artemisia scoparia, Scorzonera albicaulis, etc.). Specific plants by floral region were total 5 taxa; Vicia bungei in class IV, Koelreuteria paniculata in class III, Grewia biloba var. parviflora, Lysimachia fortunei, Rhapontica uniflora in class I. The naturalized plants in this site were 11 families, 27 genera, 37 species, 1 varieties, 38 taxa and naturalization rate was 22.4% of all 170 taxa resource plants.

Distribution of vascular plant in Mt. Cheonsung, Yangsan (양산 천성산지역 관속식물의 분포)

  • Shin, Hyun-Tak;Lee, Jae-Yoon
    • Korean Journal of Plant Resources
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    • v.22 no.2
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    • pp.180-194
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    • 2009
  • 588 taxa of vascular plants including 121 families, 399 genera, 510 species, 67 varieties, 2 subspecies, 7 forma, and 2 hybrid species were investigated in Mt. Cheonsung. Among them, 116 species were newly added in this research. The area for Gyeongbu High-speed Railway passes Mujechi 3, 4, 5, and 6 and Daeseongsa around the wetlands were investigated 6 species of rare and endangered plants, 9 species of endemic plants and 37 species of special flora plants in Mt. Cheonsung. Appear due to the construction of the Gyeongbu High-speed Railway vegetation changes, especially about the impact of wetland plants for long-term monitoring is expected to need. Moreover, plant preservation plan about water source change in upper wetland should be established.

A Study on User's Opinion for Designing of Multi-Functional Plant Applications (복합적 기능의 식물 애플리케이션 디자인을 위한 사용자 조사)

  • Lee, Ha Na;Park, Han Na;Paik, Jin Kyung
    • Korea Science and Art Forum
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    • v.37 no.4
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    • pp.297-308
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    • 2019
  • Air pollution due to the fine dust level updating every day, and the problem of indoor air pollution due to ventilation difficulties and indoor discharge pollutants is also serious. In order to improve the indoor air quality, the air purification effect using the plants is prominent. In this study was started to investigated the living environment of modern people, the risk of indoor air pollution and the improvement function of plants, and to activate plant application. The purpose of this study is to analyze the main functions and design status of domestic and overseas plant - related applications, and to understand the actual use of modern plant applications and to help them learn more convenient plant - related knowledge. Therefore, this paper attempted to establish a basis for suggesting a new plant application by conducting a survey on the health effects of indoor air pollution and user awareness of plant - related applications. The results and contents of the study are as follows. First, as a theoretical review, indoor air pollution is more dangerous to modern people who have a high proportion of indoor living time and adversely affects their health. In order to solve such a problem, it has been shown that air conditioning and stress reduction can be effectively achieved by placing plants in the indoor space. Second, the analysis of the previous study shows the risk of indoor air pollution and its adverse effects on health. In addition, I have been able to find some researches related to the improvement of the indoor air by using the air purifying plants, and I can see the improvement of the user's behavior through the development or improvement of the application. Third, as a result of the survey on the status of domestic and overseas plant application, the main function of the application having high installation number was watering notification, provision of basic information of plants, and most of the functions were plant discerment through cameras. Fourth, most of the survey respondents have either raised or raised plants. Those who have little experience with plant applications have also shown positive feedback in the future on the use of plant-related applications. In addition, due to social problems such as air pollution, air purification using plants and functional plants showed high interest. Based on these results, we propose the need for a multi-functional plant application that can improve the indoor air pollution and facilitate the provision of information related to it.

Evaluation of Growth Characteristics of T hree Monocot Plants Native to Korea according to Cultivation Environments in Greenhouse (온실재배환경에 따른 자생 단자엽식물 3종의 생육 특성 평가)

  • Yu-Jin Kim;Hamin Lee;Boran Ji;Kichan Kim;Bo-Kook Jang;Cheol Hee Lee;Ju-Sung Cho
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.47-47
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    • 2022
  • 단자엽식물은 잎의 곡선과 직선의 조화가 아름다워 관상용으로 가치가 높은 식물이다. 이로 인해 자생 단자엽식물의 실내 관상 및 조경용 소재개발 연구가 활성화되고 있으나 재배에 대한 정보는 미비한 실정이다. 본 연구에서는 국내 자생 단자엽식물인 참김의털[Festuca ovina L. var. coreana (St.-Yves) St.-Yves], 청사초(Carex breviculmis R.Br.), 골풀[Juncus decipiens (Buchenau) Nakai]을 대상으로 몇 가지 재배 조건에 대한 생육 차이를 확인하였다. 국립생물자원관으로부터 분양 받은 세 종의 종자는 휴면 여부와 발아 적온을 확인하기 위해 종자를 페트리디쉬에 파종한 후 15, 20, 25, 30℃(명 또는 암조건) 및 25/15℃(16/8h, 명/암) 조건에 배치하였다. 재배실험은 유리온실에서 수행되었으며, 토양에 파종 후 4주간 육묘한 다음 균일한 생육상태의 묘를 7cm 포트에 이식하여 실험의 재료로 사용하였다. 토양실험은 시판 원예용상토와 마사토를 혼합하여 사용하였으며, 비율을 1:1, 2:1 및 3:1로 조성하였다. 차광 환경은 55, 75% 차광과 무차광 조건으로 달리 하였으며, 추비는 재배 6, 8, 10주차에 500, 1,000ppm의 하이포넥스(NPK 7-10-6) 용액을 엽면시비 하였다. 토양실험을 제외한 모든처리구에서는 원예상토 단용을 사용하였으며, 이식 후 12주간 재배하였다. 발아 실험 결과, 참김의털은 명조건에서 25/15와 15℃를 제외하고 발아율이 10% 이하로 조사되었으며, 암조건에서 온도가 증가할수록 발아율이 감소하였다. 청사초는 모든 온도에서 90%이상 발아하였으며, 암조건의 경우 발아율이 10% 이하로 조사되어 광발아성 종자로 확인되었다. 골풀은 실험이 진행된 30일 동안 모든온도에서 발아하지 않았으나, 재배실험을 위해 토양에 파종된 골풀은 파종 약3주 이후 발아가 관찰되었다. 재배실험 결과, 참김의털과 청사초의 경우 2:1로 혼합한 토양에서 엽수와 분얼수, 생체중 등이 가장 높게 조사되어 관상적 가치가 높았으며, 골풀은 3:1의 혼합토양에서 생육이 가장 우수하였다. 차광은 세 종 모두에게서 생육에 부정적인 영향을 미쳤으며, 청사초와 골풀은 500ppm의 하이포넥스를 시비하였을 때 생육이 촉진되었다.

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Plant Factory - A Prospective Urban Agriculture (식물공장 - 미래의 도시농업)

  • 손정익
    • Journal of Bio-Environment Control
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    • v.2 no.1
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    • pp.69-76
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    • 1993
  • 최근 작물의 공장적 재배는 $\boxDr$식물공장$\boxUl$이라는 단어로 대표되는, 새로운 재배방식의 하나로서 세계적으로 주목받고 있다. 식물공장(plant factory or factory- style plant production system)이라는 단어의 의미와 같이 $\boxDr$시설내의 작물을 공장제품의 생산과 동일하게 재배하는 시스템$\boxUl$이다. 즉 자연환경에 의존하지 않고 인공환경하에서 식물을 공장적으로 재배하는 방식을 의미한다. 이를 위해서는 지하부의 양액, 지상부의 온습도, 탄산가스, 광 등에 대한 고도의 환경제어 및 작업의 자동화가 필요하다.(중략)

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Endless debates on the extant basal-most angiosperm (현생 기저 피자식물에 대한 끝나지 않는 논쟁)

  • Kim, Sangtae
    • Korean Journal of Plant Taxonomy
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    • v.40 no.1
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    • pp.1-15
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    • 2010
  • Recognizing a basal group in a taxon is one of the most important factors involved in understanding the evolutionary history of that group of life. Many botanists have suggested a sister to all other angiosperms to understand the origin and rapid diversification of angiosperms based on morphological and fossil evidence. Recent technical advances in molecular biology and the accumulation of molecular phylogenetic data have provided evidence of the extant basal-most angiosperm which is a sister to all other angiosperms. Although it is still arguable, most plant taxonomists agree that Amborella trichopoda Baill., a species (monotypic genus and monotypic family) distributed in New Caledonia, is a sister to all other extant angiosperms based on evidence from the following molecular approaches: 1) classical phylogenetic analyses based on multiple genes (or DNA regions), 2) analyses of a tree network of duplicated gene families, and 3) gene-structural evidence. As an alternative hypothesis with relatively minor evidence, some researchers have also suggested that Amborella and Nymphaeaceae form a clade that is a sister to all other angiosperms. Debate regarding the basal-most angiosperms is still ongoing and is currently one of the hot issues in plant evolutionary biology. We expect that sequencing of the whole genome of Amborella as an evolutionary model plant and subsequent studies based on this genome sequence will provide information regarding the origin and rapid diversification of angiosperms, which is Darwin's so called abominable mystery.