Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Weed Control and Safety of Transgenic Rice Event, CPPO06 in Direct-Seeding Flooded Rice Field

담수직파에서 형질전환 CPPO06이벤트 벼의 안전성 및 잡초방제효과

  • Won, Ok Jae (Department of Crop Science, Chungnam National University) ;
  • Park, Su Hyuk (Department of Crop Science, Chungnam National University) ;
  • Eom, Min Yong (Department of Crop Science, Chungnam National University) ;
  • Kim, Chang-Gi (Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Lee, Bum Kyu (Biosafety Division, National Academy of Agricultural Science) ;
  • Kang, Hong-Gyu (Subtropical Horticulture Research Institute, Jeju National University) ;
  • Lee, Jeung Ju (Department of Plant Medicine, IALS, Gyeongsang National University) ;
  • Park, Kee Woong (Department of Crop Science, Chungnam National University)
  • 원옥재 (충남대학교 식물자원학과) ;
  • 박수혁 (충남대학교 식물자원학과) ;
  • 엄민용 (충남대학교 식물자원학과) ;
  • 김창기 (한국생명공학연구원 바이오평가센터) ;
  • 이범규 (국립농업과학연구원 생물안전성과) ;
  • 강홍규 (제주대학교 아열대원예산업연구소) ;
  • 이증주 (경상대학교 식물의학과) ;
  • 박기웅 (충남대학교 식물자원학과)
  • Received : 2014.12.01
  • Accepted : 2015.02.27
  • Published : 2015.03.31
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Abstract

This study was conducted to evaluate the efficacy of weed control and phytotoxicity of oxyfluorfen using a transgenic rice line (CPPO06 event) resistant to protoporphyrinogen oxidase (Protox) inhibiting herbicides in the direct-seeding flooded rice. Five annual weeds including Echinochloa oryzoides and two perennial weeds were occurred in the test field. Oxyfluorfen at 120 g a.i. $ha^{-1}$ in the application timing of two days before sowing and 0 and five days after sowing showed more than 90% weed control value except for Juglans mandshurica. Total weed control value was more than 95% in any application timing indicating a highly effective herbicide in the direct-seeding flooded rice. When compared with untreated control, no visual injuries were detected at single and double dosage of oxyfluorfen. The agronomic characteristics and yield components of CPPO06 event was reasonable in any time of application in this study. Based on these data, oxyfluorfen application before and after sowing can be applied to provide effective weed management in the direct-seeding flooded field.

형질전환 CPPO06 이벤트 벼를 이용하여 담수직파 재배에서 oxyfluorfen의 적정 처리시기 및 처리량에 대한 연구를 수행하였다. 모본인 동진벼는 10 g a.i. $ha^{-1}$의 농도에서 생육이 억제되었으나, CPPO06 이벤트 벼는 oxyfluorfen 10,000 g a.i. $ha^{-1}$의 농도에서도 생육억제를 보이지 않아 높은 oxyfluorfen 저항성을 보이는 것으로 나타났다. Oxyfluorfen을 써레질 직후와 파종 직후 처리한 결과 가래를 제외한 모든 발생 초종의 방제효과가 뛰어났으며, 파종 5일 후의 경우는 가래를 포함하여 모든 발생 초종이 95% 이상 방제되었다. Oxyfluorfen의 처리시기와 처리량에 따른 생육저해 현상은 없었으며, 안정적인 수확량을 확보할 수 있었다. 담수직파재배에서 oxyfluorfen 처리시기 및 처리량에 따른 CPPO06 이벤트 벼의 안전성 및 잡초방제 효과로 볼 때 담수직파재배면적의 확대가 기대된다.

Keywords

References

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