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Agronomic Characteristics of Adzuki bean (Vigna angularis W.F. Wight) Germplasm in Korea (팥 유전자원의 작물학적 형질 특성)

  • Yoon, Seong-Tak;Qin, Yufeng;Kim, Tae-Ho;Choi, Seong-Hoon;Nam, Jung-Chang;Lee, Jun-Soo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.57 no.1
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    • pp.7-15
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    • 2012
  • Agronomic characteristics of 150 adzuki bean ($Vigna$ $angularis$ W.F. Wight) germplasm collected in Korea were investigated in order to establish basic data for the improvement of crop breeding. Growth types were classified as 3 types of indeterminate type, determinate type, and semideterminate type, of which indeterminate type was the highest percentage of 96.6%. Seed color were classified as 8 colors of which dark brown took 66.5% in 150 adzuki bean germplasm. Days from seeding to maturity showed the range from 89 to 142 days with 115 days in the average and the highest frequency proportion was 37.2% of the group from 131 to 140 days, and the next was 27.3% of the group from 121 to 130 days among 150 germplasm. Pod length showed the range from 5.9 to 10.1 cm with 7.8 cm in the average and the highest frequency distribution of it was the group from 7.1 to 8.0 cm with the proportion of 45.1% and the next was the group from 8.1 to 9.0 cm with the proportion of 32.2%. Number of pods per plant showed the range from 5.0 to 132.5 pods with 28.5 pods in the average and the highest frequency distribution of it was the group from 11.0 to 20.0 pods with the proportion of 30.8% and the next was the group from 21.0 to 30.0 pods with the proportion of 28.6%. Number of seeds per pod showed the range from 5.3 to 11.3 seeds with 8.2 seeds in the average and the highest frequency proportion of it was the group from 7.1 to 8.0 seeds, which occupied 32.2% among 150 germplasm. 89.3% of 150 germplasm showed the resistance to shattering of grains at harvest period. 100 grain weight showed the range from 5.7 to 23.0 g with 12.9 g in the average and the highest frequency proportion of it was the group from 9.01 to 13.0 g, which occupied 43.3% and the next was the group from 13.01 to 17.00 g with the proportion of 28.5% of 150 germplasm.

Evaluation of Cabbage- and Broccoli-genetic Resources for Resistance to Clubroot and Fusarium Wilt (뿌리혹병 및 시들음병에 대한 저항성 양배추와 브로콜리 유전자원 탐색)

  • Lee, Ji Hyun;Jo, Eun Ju;Jang, Kyoung Soo;Choi, Yong Ho;Kim, Jin-Cheol;Choi, Gyung Ja
    • Research in Plant Disease
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    • v.20 no.4
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    • pp.235-244
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    • 2014
  • Clubroot and Fusarium wilt of cole crops (Brassica oleracea L.) are destructive diseases which for many years has brought a decline in quality and large losses in yields all over the world. The breeding of resistant cultivars is an effective approach to reduce the use of chemical fungicides and minimize crop losses. This study was conducted to evaluate the resistance of 60 cabbage (B. oleracea var. capitata) and 6 broccoli (B. oleracea var. italica) lines provided by The RDA-Genebank Information Center to clubroot and Fusarium wilt. To investigate resistance to clubroot, seedlings of the genetic resources were inoculated with Plasmodiophora brassicae by drenching the roots with a mixed spore suspension (1 : 1) of two isolates. Of the tested genetic resources, four cabbage lines were moderately resistant and 'K166220' represented the highest resistance to P. brassicae. The others were susceptible to clubroot. On the other hand, to select resistant plants to Fusarium wilt, the genetic resources were inoculated with Fusarium oxysporum f. sp. conglutinans by dipping the roots in spore suspension of the fungus. Among them, 17 cabbage and 5 broccoli lines were resistant, 16 cabbage lines were moderately resistant, and the others were susceptible to Fusarium wilt. Especially, three cabbage ('IT227115', 'K161791', 'K173350') and two broccoli ('IT227100', 'IT227099') lines were highly resistant to the fungus. We suggest that the resistant genetic resources can be used as a basic material for resistant B. oleracea breeding system against clubroot and Fusarium wilt.

A Case Study on the HANGEUL Information Resources Produced and Published by Chosun People in China (중국 조선족 한글정보자원 생산과 출판물에 대한 연구)

  • Lee, Myoung-Gyu;Chang, Woo-Kwon
    • Journal of Korean Library and Information Science Society
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    • v.35 no.4
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    • pp.401-422
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    • 2004
  • Information resources production and accumulation are composed of the characters. It is succeeded to the cultural of the past, to create them and to the vehicle of the cultural. This paper shows that the construction is consisted of 4 steps ' setting up a goal of construction defining and developing information resources as HANGEUL by chosun people in china, being status and analysing information resources produced and publications by it and a conclusion and suggestion. Therefore, this study aims to investigate and analyse the information resources productions and publications of HANGEUL based on the research results of the case study of them.

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A Study of the Integration of the Distributed Disaster Resources (국가 재난관리자원 통합에 관한 연구)

  • Lee, Changyeol;Kim, Taehwan;Park, Giljoo
    • Journal of the Society of Disaster Information
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    • v.10 no.2
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    • pp.304-311
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    • 2014
  • Disaster Resources are the resources used in the disaster fields such as fire, typhoon, flood, collapse, flood damage, distress, relief, sanitary, explosion and so forth. The resources are distributed by the several institutes including governmental agencies, public institution, and private sectors. When the large scale disaster is occurred, many kinds of the disaster resources are needed. But it is not easy to know where institutes has the needed resources, because the resource management systems are all distributed in the each institute. To integrate or connect the resource data among the systems, it need the several kinds of coordinations such as terms, classification, and resource exchange protocols. In this paper, we propose the standard specifications and how to connect and exchange the data among the systems.

Mineralization in the Pegmatite of Mogok Metamorphic Belt, Myanmar (미얀마 모곡변성대 페그마타이트의 광화작용)

  • Oh, Il-Hwan;Heo, Chul-Ho;Choi, Sang-Hoon;Lee, Sunjin;Cho, Seong-Jun
    • Journal of the Mineralogical Society of Korea
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    • v.31 no.3
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    • pp.183-191
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    • 2018
  • It is reported that Li-bearing minerals regarding as a promising battery industrial commodity occur in the Mogok metamorphic belt, Myanmar. Preliminary considerations on the mineralization of pegmatite occurrences within Mogok metamorphic belt such as Singu, Mogok and Momeik are as follows. In Singu area, lepidolite and rubellite occur together (Letpanhla No. 2 & 7 pegmatite) while rubellite only occur (Letpanhla No. 4 pegmatite). In Mogok area, lepidolite and rubellite occur together (Sakangyi pegmatite). In Momeik area, lepidolite and rubellite occur together (Pheyeou pegmatite) while rubellite only occur (Khetchel Ywar Thit pegmatite). In the future, it is estimated that it is necessary to implement the detailed exploration for the resource evaluation of lithium-bearing mineral targeted for the pegmatite of Mogok metamorphic belt.

Efficiency of microspore embryogenesis in Brassica rapa using different genotypes and culture conditions (배추 유전자원의 소포자 유래 배 발생 효율에 미치는 배양 조건 구명)

  • Seo, Mi-Suk;Sohn, Seong-Han;Park, Beom-Seok;Ko, Ho-Cheol;Jin, Mina
    • Journal of Plant Biotechnology
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    • v.41 no.3
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    • pp.116-122
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    • 2014
  • Total of fifty accessions of Brassica rapa with various morphological characteristics were used for production of double haploid plants though microspore culture in Brassica rapa. Among them, only 30 accessions induced embryos from microspores. The highest efficiency of embryo induction of 1.194 per bud was obtained from IT135449 of turnip type, while 3 accessions of sarson (winter oil) type did not generate embryo. The effect of heat shock periods for embryogenesis was also investigated with 4 accessions (IT135449; Turnip type, IT199710; Chinese cabbage type, IT212886; Pak choi type, IT218043; Summer oil type). The high productions of embryos were observed in IT135449, IT199710 and IT212886 when microspores were pre-cultured to $32^{\circ}C$ for 2 days. In IT218043, high embryogenesis was observed at the 3 days of heat shock treatment. The optimal condition of shoot regeneration for IT199710 was observed in MS medium supplemented with NAA $0.5mg{\cdot}L^{-1}$ and BAP $1mg{\cdot}L^{-1}$. In contrast, the IT135449 and IT212886 were observed high regeneration frequency in MS medium without plant growth regulators. All the plantlets regenerated from microspore-derived embryos have been successfully transplanted to soil, and bud self-pollinated seeds were produced from doubled haploid plants. This indicated that double-haploid genotype was likely generated naturally during embryogenesis process.

Web Resources Based Collection Development for Digital Libraries (디지털 도서관의 웹자원 기반 장서개발)

  • Lee, Jee-Yeon;Kim, Sung-Un
    • Journal of Korean Society of Archives and Records Management
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    • v.3 no.1
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    • pp.111-127
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    • 2003
  • Web-based information resources should be managed and used methodically in the same manner as the paper-based resources are managed and used. It is necessitated by the prevalence of web-based delivery of a variety of information. To develop a web-based digital collection, it is critical to establish a set of standardized evaluation criteria for web-resources. The evaluation criteria needs to include authority, trustworthy, reliability, functionality, relatedness, accessibility, structure, design, user support, and security related matters. However, it is also necessary to have certain flexibility to either emphasize or include particular evaluation criteria to reflect varying characteristics of the web resources especially for the purpose of developing an effective digital collection. In addition, it is essential to review the evaluation criteria with respect to value, demand, duplication prevention, and intellectual property, which are relevant to the web-based digital collection development. Finally, various strategies were suggested as means to develop more effective web-based digital resource collection. These strategies include organizing a selection committee to ensure the objectivity and consistency in web-resource evaluation; developing a model for web-based digital resource collection; sharing new standards, protocols, markups, and metadata with other digital libraries; and developing user-centered digital resource collection.

Dispersion Characteristics of Natural Crystalline Graphite Powders by Surface Modification (표면개질에 의한 인상흑연 분체의 분산특성 연구)

  • Kim, Byeong-Gon;Choe, Sang-Geun;Jeong, Heon-Saeng;Han, Sang-Geun;Lee, Jae-Jang
    • Korean Journal of Materials Research
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    • v.11 no.8
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    • pp.679-684
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    • 2001
  • The surface of natural graphite has not only good electrical conductivities and lubrication properties but also has strong hydrophobicity. There are no functional groups and chemical properties on it. It is difficult to join with any other ions and to disperse in aqueous system. In order to increase dispersion ability throughout modification of surface property, it is necessary to let graphite have some function on its surface by the adsorption of surfactant molecules. In this study, using zeta potential adsorbed surfactant molecules(ABDM) on graphite surface and its surface Properties turn hydrophobic into hydrophilic. The dispersing mechanism of graphite particles in aqueous system has been explained using the DLVO theory, It is concluded that the high dispersable graphite suspension of which dispersing stability$(T_{1/2})$ is 44.5 hours at pH 10 and 22.5mV zeta potential can be produced.

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Ecological Characteristics and Native Preservation Method of Glehnia littoralis Community in Korea Coast (갯방풍 자생지의 식생구조 및 군락특성에 관한 연구)

  • Choo, Byung Kil;Ji, Yunui;Moon, Byeong Cheol;Kim, Bobae;Lee, A-Yeong;Yoon, Taesook;Song, Hokyung;Kim, Ho Kyoung
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.11 no.6
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    • pp.38-48
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    • 2008
  • This study was conducted to evaluate the vegetation structure of community by the phytosociology method, floristic composition table on coast of South Korea. Form 2007 June until November, $2m{\times}2m$ quadrat was established in native Glehnia littoralis in order to record a dominants and coverage, and it drew the profile. It was found out that the mean temperature in the distributed areas for Glehnia littoralis population was $11^{\circ}C$ or more. The flora of the studied area in Glehnia lottoralis community of coastal dune was listed as 100 species. Glehnia lottoralis community of appearance species of Yeonggwanggun Duwori was many most by 44 species. Carex pumila, Carex Kobomugi, Imperata cylindrica var. koenigii, Ischaemum anthephehoroides and Vitex rotundifolia range all over the studied areas. And the vegetation of Glehnia littoralis community was classified into Vitex rotundifolia subcommunity, Ischaemun anthephephoroides subcommunity and Imperata cylindrica var. koenigii subcommunity. Native Glehnia littoralis was classified into preserve area, natural selection area and artificial destruction area. It must preserve native Glehnia littoralis of Goseong, Yeongdeok, Haenam it was ecological important area.

Study on Characteristics of Diesel Particualte Matter and it's Measurement and Evaluation (디젤 입자상물질의 특성 및 측정 평가에 관한 연구)

  • 김복윤;이상권;조영도
    • Tunnel and Underground Space
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    • v.6 no.1
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    • pp.48-56
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    • 1996
  • Presently, mobile diesel equipments contribute a lot to improve the economic feasibility of underground mining and tunneling operations. Even in Korea, a lot of diesel equipments are being applied to the undergroud workings already, but the technology of management and control of them is not sufficient yet. This study handled the production procedure, characteristics and evaluation technology on diesel particulate matte(DPM) which is known as a carcinogen. For easy measurement of DPM using laser dust monitor, conversion known as a carcinogen. For easy measurement of DPM using laser dust monitor, conversion factor(k) to gravimetric concentration has been acquired. It is appeared that the critical material among the diesel exhaust pollutants is becoming DPM instead of NOx from this year of 1996 according to the Government regulation.

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