• Title/Summary/Keyword: 토양전염

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토양전염성 병해 진단부터 철저히 - 난방제 토양전염성병의 발생생태와 방제방안(하) -

  • 박창석
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.12 no.1 s.100
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    • pp.81-88
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    • 1991
  • 토양전염성 병을 효과적으로 방제하기 위해서는 병의 진단에서 부터 전염원 동태 파악, 발병환경구명등 기본적인 연구자료의 축적위에서 현행 방제법들을 적절히 조화시킨 종합방제 체제를 확립하여야 한다.

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Studies on the Soil Transmission of CGMMV and Its Control with Crop Rotation (오이녹반모자이크바이러스의 토양전염 생태 및 윤작에 의한 방제)

  • Park, Jin-Woo;Jang, Tae-Ho;Song, Sung-Ho;Choi, Hong-Soo;Ko, Sug-Ju
    • The Korean Journal of Pesticide Science
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    • v.14 no.4
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    • pp.473-477
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    • 2010
  • Cucumber green mottle mosaic virus (CGMMV) is one of major plant viruses infecting cucurbitaceous crops via soil or infected seeds. This study investigate ecology of infection of CGMMV in soil, and control tactics of this virus with soil hygiene and crop rotation. This virus was survival to 50% in soil without host plants for 17 months and had high vitality in debris of infected plant over 1 year. Infection rate of CGMMV was 1.0~3.6% in control soil and 12~36% in soil transplanted with wounded root of watermelon. It showed that wounded root may affect severity of soil infection. Rotation between rice and watermelon caused dramatical reduction from 76.8% in repeated cultivation to 7.3% of progeny infection by CGMMV. Therefore, it is suggested that crop rotation be effective for control of CGMMV.

Soil Transmission of Cucumber green mottle mosaic virus and Its Control Mensures in Watermelon (수박에 오이녹반모자이크바이러스의 토양전염과 예방대책)

  • Choi, Gug-Seoun;Kim, Jae-Hyun;Kim, Jeong-Soo
    • Research in Plant Disease
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    • v.10 no.1
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    • pp.44-47
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    • 2004
  • Soil transmission ratio of Cucumber green mottle mosaic virus (CGMMV) was 0.2 to 3.5 % in watermelon growing fields naturally infested with the virus. Biological activities of CGMMV lost after 17 months in moist well-aerated soil but still continued more than 33 months in waterlogged soil. To inhibit the virus infection through soil, the roots of watermelon seedlings were soaked in 10% solution of skim milk prior to transplanting. The seedlings treated with skim milk solution were not infected, while 5.0 to 7.6% out of control seedlings were infected. The roots treated with skim milk were coated with membrane around the roots under scanning electron microscope.

Studies on the appearance, distribution varietal resistance and disinfection of white tip Aphelenchoides besseyi Christie of rice in Korea (청도군이서면에 발생한 수도심고병선충의 전염경로와 온탕처리방제시험)

  • Jeon-Woo Bang
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.10
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    • pp.51-56
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    • 1971
  • To make certain of the white tip infection on rice, nematodes isolated from the rice seeds grown at Chongdo-goon Isu-myun and Kimje-goon Chooksan-myun were artificially inoculated and their pathway was studied. Also, studies were made for the hot water seed treatment as a measure of white tip control at different levels of water temperature and their germinablity was checked. The results are summarized as follows; 1. Causal nematodes survive in the paddy soil and cause white tip year after year. 2. Causal nematodes can survive in the rice seeds as long as the seeds loose their germinability. 3. Causal nematodes can disseminate throught the irrigation water. 4. Causal nematodes can disseminate through the soil move from a place to other place. 5. Causal nematodes can infect all of the parts of the rice and they can disseminate through any of the parts of rice. 6. The hot water treatment at 5$0^{\circ}C$ for 60 minutes were not effective controlling causal nematodes. But, either treatment of at 55$^{\circ}C$ for 15-20 minutes or at 6$0^{\circ}C$ for 10-15 minutes were effective and germination of seeds was not affected.

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토양전염성 병해

  • 농업과학기술원 작물보호부 식물병리과
    • Agrochemical news magazine
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    • v.24 no.1 s.184
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    • pp.41-43
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    • 2003
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