• Title/Summary/Keyword: mosaic

Search Result 1,232, Processing Time 0.037 seconds

Standardization of a Graft Inoculation Method for the Screening of Mungbean Germplasm against Mungbean yellow mosaic virus (MYMV)

  • Akhtar, Khalid Pervaiz;Ahsanul Haq, M.
    • The Plant Pathology Journal
    • /
    • v.19 no.5
    • /
    • pp.257-259
    • /
    • 2003
  • This report described a simple, inexpensive, faster, and effective graft inoculation method for the artificial transmission of Mungbean yellow mosaic virus (MYMV). Success of grafting and disease transmission was 100% in this method. Screening of mungbean germplasm using this method will prevent the chance of escape infection, probably as a consequence of non-preference mechanism and loss of vector infectivity. The grafting method described here is applicable to both screenhouse and field trials.

3D Plenoptic functions with Cylindrical maps (원통형 맵을 이용한 삼차원 plenoptic 함수)

  • 이윤진;이승용
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2000.04b
    • /
    • pp.631-633
    • /
    • 2000
  • 본 논문에서는 삼차원 plenoptic 함수인 concentric mosaics의 단점을 개선한 원통형 맵을 사용한 삼차원 plenoptic 함수를 제시한다. Concentric mosaics는 모자익을 샘플링 데이터로 사용하므로 샘플링 과정이 어렵고, 시점의 방향이 항상 원에 접하기 때문에 물체를 여러 시점에서 자유롭게 관찰하는데 한계가 있다. 원통형 맵을 이용한 삼차원 plenoptic 함수는 원통형 맵을 사용하므로 모자익에 비해 생성 과정이 쉬우며 시점의 방향이 자유로우므로 환경의 네비게이션 뿐만 아니라 물체의 관찰도 렌더링 할 수 있다.

  • PDF

Effects of Soybena Mosaic Virus Infection on Nodule Formation (대두모자이크 바이러스 감염이 대두유근형성에 미치는 영향)

  • 이정호
    • Journal of Plant Biology
    • /
    • v.16 no.3_4
    • /
    • pp.35-39
    • /
    • 1973
  • This investigation was conducted to study the effect of soybean mosaic virus (SMV) on various parameters of nodule formation at different stage of soybean plants. Differences in nodule formation were marked between soybean varieties tested, but nodules were small within soybean varieties infected with SMV. SMV-infection on soybeans were greatly reduced the number, size and weight of nodules, and the earlier the infection of SMV, the greater the reduction of nodules. Maximum reduction(83%) of nodules observed when "Kumkang-Daerip" soybeans were inoculated 2 weeks after seeding, but none occurred 8 weeks or later. Prominent decreases in number of nodules often resulted in an increase in nodu'e sizes in SMV-infected soybean plants.an plants.

  • PDF

Higher Plant Vector Systems (식물 백터 시스템)

  • 최인성;홍주봉
    • Proceedings of the Botanical Society of Korea Conference
    • /
    • 1987.07a
    • /
    • pp.51-62
    • /
    • 1987
  • Higher plant transformation vector systems are mainly developed based on the natural biosystems which infecting higher plants. Two major groups attracting much of the research are Cauliflower mosaic virus and Agrobacterium tumefaciens. Cauliflower mosaic virus has a double stranded genome, and a portion of the genome can be substituted for a foreign DNA segment without loosing the ability of infection. A. tumefaciens carries a large plasmid. Ti plasmid whose portion can be substitute and trasferred into the plant chromosome.

  • PDF

Categorical Data Analysis System in the Internet (인터넷상에서의 범주형 자료분석 시스템 개발)

  • Hong, Jong Seon;Kim, Dong Uk;O, Min Gwon
    • The Korean Journal of Applied Statistics
    • /
    • v.12 no.1
    • /
    • pp.81-81
    • /
    • 1999
  • A categorical data analysis system in the World Wide Web is proposed with an easy- to-use environment . This system is composed of four components. First, this system presents several graphical displays for Exploratory Data Analysis for categorical data. Second, it provides some measures of association Including dynamic graphics for mosaic plots of Hartigan and Kleiner (1981) and Friendly (1994). Dynamic graphics for mosaic plots give some useful informations. Third, this system can analyze categorical data with loglinear models. So we can select the best fitted loglinear model interactively.

DATABASE OF SAR IMAGES OF MONGOLIA AND ITS ROLE FOR UPDATE OF DIFFERENT LAYERS IN A GIS

  • Amarsaikhan, D.;Ganzorig, M.
    • Proceedings of the KSRS Conference
    • /
    • 2003.11a
    • /
    • pp.1090-1092
    • /
    • 2003
  • The aim of this study is to describe the problems and solutions for creating a synthetic aperture radar (SAR) mosaic covering the total territory of Mongolia and highlight the role of the available SAR database for updating different thematic layers stored in a geographical information system (GIS).

  • PDF