The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Biological Control of Paraconiothyrium minitans S134 on Garlic White Rot Caused by Sclerotium cepivorum

Paraconiothyrium minitans S134의 마늘흑색썩음균핵병에 대한 생물적 방제

  • Lee, Sang Yeob (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), RDA) ;
  • Hong, Sung Kee (Crop Protection Division, NASS, RDA) ;
  • Choi, In Hu (Bioenergy Crop Research Center, National Institute of Crop Science) ;
  • Chon, Yong Dal (Taean-gun Agricultural Development & Technology Center) ;
  • Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), RDA) ;
  • Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), RDA) ;
  • Kim, Wan Gyu (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), RDA)
  • 이상엽 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 홍성기 (농촌진흥청 국립농업과학원 작물보호과) ;
  • 최인후 (농촌진흥청 국립식량과학원 바이오에너지작물연구센터) ;
  • 전용달 (농촌진흥청 충남 태안군농업기술센터) ;
  • 김정준 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 한지희 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 김완규 (농촌진흥청 국립농업과학원 농업미생물과)
  • Received : 2012.11.08
  • Accepted : 2012.12.11
  • Published : 2012.12.31
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Abstract

Sclerotium cepivorum is a causal agent of white rot disease on different plants including Allium species such as garlic. A mycoparasite, Paraconiothyrium minitans S134 was selected for biological control of sclerotinia rot of garlic caused by S. cepivorum. The experiment was carried out in a garlic field in Taean from October in 2011 to June in 2012. Spore suspension of the mycoparasite was treated twice onto soil surface around garlic plants in sowing in 2011 and late Feb. in 2012, and disease rating was made June in 2012. Incidence of white rot in the twice-application plot of the mycoparasite ($5{\times}10^6$ spores/mL) and in the fluquinconazole (WP)-treated plot was 6.8% and 0.4%, respectively, whereas that of control was 19.5%. As the results, P. minitans S134 could be a prospective biofungicide for biological control of white rot of garlic.

Sclerotium cepivrum은 마늘과 같은 파속작물에 발생하는 흑색썩음균핵병의 병원균이다. 기생진균 Paraconiothyrium minitans S134 균주는 마늘 흑색썩음균핵병의 생물적 방제를 위하여 선발되었다. 포장실험은 태안에서 2011년 10월부터 2012년 6월까지 실시하였다. P. minitans S134 균주의 포자현탁액($5{\times}10^6m{\ell}$)을 마늘 종구를 파종직후와 다음해 2월 하순에 주당 $100m{\ell}$씩 각각 관주처리하여 6월 5일에 흑색썩음균핵병 발생 억제효과를 조사하였다. P. minitans S134 균주를 2회 관주처리구가 6.8%, 플루퀀코나졸수화제 분의처리구가 0.4%, 무처리구가 19.5%의 흑색썩음균핵병이 발생하였다. 그러므로 P. minitans S134 균주는 마늘 흑색썩음균핵병에 대한 유망한 미생물농약으로서 가능성을 나타내었다.

Keywords

References

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