• 제목/요약/키워드: national collection

검색결과 3,356건 처리시간 0.035초

Development and Evaluation of Core Collection Using Qualitative and Quantitative Trait Descriptor in Sesame (Sesamum indicum L.) Germplasm

  • Park, Jong-Hyun;Suresh, Sundan;Raveendar, Sebastin;Baek, Hyung-Jin;Kim, Chung-Kon;Lee, Sokyoung;Cho, Gyu-Taek;Ma, Kyung-Ho;Lee, Chul-Won;Chung, Jong-Wook
    • 한국작물학회지
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    • 제60권1호
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    • pp.75-84
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    • 2015
  • Sesame (Sesamum indicum L.) is one of the most important oilseed crops with high oil contents and rich nutrient value. The development of a core collection could facilitate easier access to sesame genetic resources for their use in crop improvement programs and simplify the genebank management. The present study was initiated to the development and evaluation of a core collection of sesame based on 5 qualitative and 10 quantitative trait descriptors on 2,751 sesame accessions. The accessions were different countries of origin. About 10.1 percent of accessions were selected by using the power core program to constitute a core collection consisting of 278 accessions. Mean comparisons using t-test, Nei's diversity index of 10 morphological descriptors and correlation coefficients among traits indicated that the existing genetic variation for these traits in the entire collection has been preserved in the core collection. The results from this study will provide effective information for future germplasm conservation and improvement programs in sesame.

Effect of Seed Collection Stage and Temperature on Germination of Deutzia paniculata Nakai, the Korea Native Species

  • Jeong, Mi Jin;Choi, Go Eun;Ghimire, Balkrishna;Lee, Ha Yan;Jung, Ji Young;Choi, Myung Suk;Ku, Ja Jung;Lee, Kyung Mee;Lee, Cheul Ho;Suh, Gang Uk;Son, Sung Won
    • 원예과학기술지
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    • 제34권3호
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    • pp.372-382
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    • 2016
  • In this study, we investigated the effect of seed collection stage and alternating temperature on the germination of Deutzia paniculata (Hydrangeaceae). The seeds were collected from naturally growing D. paniculata populations in Mt. Palgong, Gyeonsangbuk-do, Korea every two weeks over a three month period from August through October, 2014, totaling five collections. We examined seed characteristics such as seed size (length and width) and weight, and germination percentages for each collection stage under four different germination temperature regimes. We also examined germination after 30 and 60 days of cold moist stratification. Each collection phase had a different germination percentage and the lowest germination percentage was observed in the seeds from phase I (average GP of 15.7%). The germination percentage was similar at the later collection phases and in the higher temperatures suggesting that later collection times and higher temperatures are optimal for D. paniculata germination. We found that the optimum collection stage with high viability and germination percentage of for D. paniculata was during the middle of the September.

Selection of Superior Strains of Cordyceps militaris with Enhanced Fruiting Body Productivity

  • Sung, Jae-Mo;Park, Young-Jin;Lee, Je-O;Han, Sang-Kuk;Lee, Won-Ho;Choi, Sung-Keun;Shrestha, Bhushan
    • Mycobiology
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    • 제34권3호
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    • pp.131-137
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    • 2006
  • In vitro fruiting bodies were produced from ten different isolates of Condyceps militaris EFCC C-5736, EFCC C-5941, EFCC C-5976, EFCC C-6040, EFCC C-6849, EFCC C-7268, EFCC C-7342, EFCC C-7992, EFCC C-8027 and EFCC C-8549. Single ascospores were isolated from in vitro grown fruiting bodies and used for fruiting body production in brown rice medium by both intra-strain crossing and out-crossing. Length and dry wt. of stromata grown in vitro were measured. Strains producing highest dry wt. of stromata were selected. Both intra-strain crossings and inter-strain crossings of single ascospore strains were found to produce profuse fruiting bodies of C. militaris.

소나무재선충 피해목의 수집 및 활용에 대한 현황 분석 (An Analysis on the Situation of Collection and Utilization of the Trees Damaged by Pine Wilt Disease)

  • 김재환;서인교;박상준
    • 한국환경과학회지
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    • 제25권1호
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    • pp.127-134
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    • 2016
  • This study is conducted to get current state of data collection and utilization of the trees damaged by pine wilt disease, and to efficiently collect and utilize of the trees damaged by the pine wilt disease and abandoned fumigation-treated trees at forecasts. The method to control pine wilt disease damaged area is mostly fumigation treatment system, and there is no collection and utilization of damaged trees because of absence of efficient collection system, lack of collection cost, and absence of policy, etc. A survey is conducted that asked about the satisfaction degree for the trees damaged by pine wilt disease collection and use divided into 6 topics. It was positively recognized that the need and problem of the trees damaged by pine wilt disease, and results and satisfaction of forestry mechanization while it was mostly negatively recognized that the policy satisfaction for prevention and collection, satisfaction of collection and use, collection and forestry mechanization, and satisfaction of foundation equipment for forestry mechanization, etc. As a result of path analysis, it is necessary to promote a high-tech forestry mechanization to improve satisfaction level of results and satisfaction of forestry mechanization for the trees damaged by pine wilt disease collection and utilization, it is also need to make an effort in various ways for improve satisfaction level of satisfaction of collection and utilization.

용산 새 국립중앙박물관 수장고와 전시실 환경 관리 및 측정 (Environmental Measurements of Gallery and Storage Rooms of The New National Museum of Korea)

  • 이승은;노현숙
    • 박물관보존과학
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    • 제7권
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    • pp.75-87
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    • 2006
  • 국립중앙박물관은 2005년 10월 개관과 더불어 수장고 및 전시실의 안정한 보존 환경관리시스템을 확보하였다. 우선 수장고 및 전시실의 온습도와 유해가스를 주기적으로 측정하여 유물에 안정적인 환경을 유지하면서, 전시진열장 등 유물에 유해한 영향을 줄 수 있는 전시보조 재료(천, 종이, 페인트, 풀 등)를 테스트(Oddy test)하여 안정한 재료를 선정하고자 하였다. 또한 생물학적 피해를 미연에 방지하기 위해 수장고 전체를 훈증하였으며, 수장고에 주기적으로 곤충모니터링 트랩을 설치하여 생물에 의한 피해를 예방하고 있다.

디지털 장서개발정책 기본요소 연구 (A Research on the Elements of Digital Collection Development Policy)

  • 장덕현;서태설
    • 한국도서관정보학회지
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    • 제40권3호
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    • pp.97-117
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    • 2009
  • 장서개발정책은 도서관 및 정보센터에 있어서의 장서개발의 특징과 범주, 우선순위 등을 규정하는 장서관리 업무의 마스터플랜이다. 도서관은 장서개발정책을 통하여 수집대상 장서의 범위, 수집의 우선순위 및 구입 수준 등에 대한 명확한 원칙을 설정하여야 한다. 이 연구에서는 국가단위 디지털도서관 장서개발정책 수립의 전단계로서 국립디지털도서관의 디지털장서개발정책 기본모형을 연구하여, 국가적 디지털장서개발정책의 필수 요소들을 도출하고 향후 디지털장서개발정책의 일반적 지침을 정립하고자 하였다. 이를 위하여 국내외의 전자자원개발정책 사례들을 조사 분석하여 국가단위 디지털도서관에 적합한 독립형 장서개발정책의 설정을 제안하고, 국가단위 디지털도서관이 수집 대상으로 하는 정보자원의 유형과 범위, 수집의 우선순위를 제시하여, 구입 수준, 라이선스 등에 관한 내용에 대한 원칙과 국가적 디지털 정보자원 개발의 체계적 수행을 위한 필수요소들을 도출하였다.

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Analysis of genetic diversity of cowpea landraces from Korea determined by Simple Sequence Repeats and establishment of a core collection

  • Lee, Jeongran;Baek, Hyung-Jin;Yoon, Mun-Sup;Park, Sang-Koo;Cho, Yang-Hee;Kim, Chang-Yung
    • 한국육종학회지
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    • 제41권4호
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    • pp.369-376
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    • 2009
  • Cowpea might have been introduced from China to Korea and cultivated for several hundred years but it has never been a staple food crop in Korea. In this study, genetic diversity of 492 Korean cowpea landrace accessions that have passport information was estimated using six SSR markers. The mean of Weir's gene diversity was 0.665 from all accessions investigated in the study. Cowpea gene diversity of six local provinces in Korea was ranged from 0.370 in accessions of Gangwon to 0.680 in Jeonra provinces. Low gene diversity of the cowpea genepool of Gangwon province was probably derived from relatively few introductions. Especially SSR markers VM36 and VM39 seem to be good markers to distinguish the Gangwon accessions from others by occurring at a specific locus with higher than 78% of allele frequency. Except for the Gangwon province with the low genetic diversity, gene diversity of cowpea accessions from other provinces was ranged from 0.600 to 0.680 indicating no big differences among provinces. Distribution pattern of the allele frequencies was similar among the other provinces. This may reveal that Korean farmers might exchange cowpea seeds easily with even their neighbors with geographical barriers. A core collection, 100 landraces, ca. 20% of base collection, was developed at the 70% of a similarity coefficient level using random sampling approaches after stratification of the entire landrace collection based on the phenetic dendrogram. The variability of SSR in the base and core collections of Korean cowpea landrace was compared by calculating Weir's gene diversity. The mean of Weir's gene diversity of the core was 0.707 while that of the base collection was 0.665. The higher diversity index in the core collection indicates that it maintains the initial variability and well represents the base collection. The core collection included one of determinate accession (IT 216155) and two of no branching type accessions (IT 103959 and IT 161024). The core collection could be used to guide more efficient management and utilization of the entire collection. This core collection should be revised periodically as additional accessions are collected and further characterization is conducted.

국가대표도서관의 구술 컬렉션 핵심 요소 개발에 관한 연구 (A Study on Developing the Key Factors of the Oral Collection in National Representative Library)

  • 정연경;이재영
    • 한국문헌정보학회지
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    • 제54권2호
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    • pp.53-77
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    • 2020
  • 본 연구는 외국의 국가대표도서관 구술 컬렉션의 현황을 분석하여 한국의 국가대표도서관에서 구술 컬렉션을 구축할 때, 고려해야 할 핵심 요소를 도출하고자 수행되었다. 미의회도서관과 영국국립도서관, 호주국립도서관에서는 구술자료를 국가적으로 전승시켜야 할 국가지식유산으로 간주하여 일찍부터 관련 센터나 부서를 설치하고 모든 역량을 집중시켜 구술 컬렉션을 대표적인 컬렉션 중의 하나로 수집, 활용, 보존하고 있다. 이들 국가대표도서관의 구술 컬렉션 분석을 바탕으로 현재 구술 컬렉션이 전무한 국립중앙도서관이 국가대표도서관으로서 구술 컬렉션을 처음 시작할 때 고려해야 할 핵심 요소를 법령, 조직, 수집 정책, 서비스, 컬렉션, 교육 및 협업, 기금 및 후원을 중심으로 제시하였다.