Studies on the Soil Transmission of CGMMV and Its Control with Crop Rotation

오이녹반모자이크바이러스의 토양전염 생태 및 윤작에 의한 방제

  • Park, Jin-Woo (Agricultural Microbiology Team, National Academy of Agricultural Science, RDA) ;
  • Jang, Tae-Ho (Medical Products Safety Division, Daejeon Regional KFDA) ;
  • Song, Sung-Ho (Crops Technology Division, Gyeonggi-do Agricultural Research & Extension Services) ;
  • Choi, Hong-Soo (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Ko, Sug-Ju (Environmentally-Friendly Research Center, Jeollanam-do Agricultural Research & Extension Services)
  • 박진우 (농촌진흥청 국립농업과학원 농업미생물팀) ;
  • 장태호 (대전식품의약품안전청 의료제품안전과) ;
  • 송성호 (경기도농업기술원 기술보급부 친환경기술과) ;
  • 최홍수 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 고숙주 (전라남도농업기술원 연구개발국 친환경연구소)
  • Received : 2010.12.06
  • Accepted : 2010.12.16
  • Published : 2010.12.31

Abstract

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.

오이녹반모자이크바이러스(Cucumber green mottle mosaic virus; CGMMV)는 박과작물에 병을 일으키는 중요한 바이러스로 종자 및 토양전염을 하는 것으로 알려져 있다. 본 연구는 CGMMV의 토양전염 생태를 구명하고, 직접적인 화학적 방제방법이 없는 식물 바이러스의 특성을 고려하여 윤작이나 포장위생 등 경종적 방제법을 이용한 CGMMV의 방제전략에 대하여 고찰하였다. CGMMV는 기주식물이 없는 토양에서 17개월 동안 50% 정도의 활성을 유지하였으며, 토양 내에 존재하는 식물의 잔재물 속에서도 1년 이상 높은 활성을 유지하였다. 자연적인 상태에서 CGMMV의 토양전염율은 1.0~3.6%인 데 반해, 수박묘를 정식할 때 뿌리에 상처를 내어 정식한 결과 토양전염율이 12~36%로 증가하여 뿌리의 상처가 CGMMV의 토양전염에 크게 관여함을 알 수 있었다. 수박재배시 작부제계에 따른 CGMMV의 후대감염율을 분석한 결과 2000년에는 답전윤환지 7.3%, 연작지 76.8%, 2001년의 경우 답전유환지 6.1%, 연작지 50.2%로 답전윤환에 의한 윤작이 CGMMV의 피해경감에 효과가 있음을 알 수 있었다.

Keywords

References

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