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Residual Patterns of Fungicides Fludioxonil and Metconazole in Different Parts of Wheat

살균제 Fludioxonil 및 Metconazole의 밀 부위별 잔류 양상

  • Kang, Ja-Gun (School of Applied Biosciences, Kyungpook National University) ;
  • Hwang, Jeong-In (School of Applied Biosciences, Kyungpook National University) ;
  • Lee, Sang-Hyeob (School of Applied Biosciences, Kyungpook National University) ;
  • Jeon, Sang-Oh (School of Applied Biosciences, Kyungpook National University) ;
  • Kwak, Se-Yeon (School of Applied Biosciences, Kyungpook National University) ;
  • Park, Jun-Hong (Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Kim, Jang-Eok (School of Applied Biosciences, Kyungpook National University)
  • 강자군 (경북대학교 농업생명과학대학 응용생명과학부) ;
  • 황정인 (경북대학교 농업생명과학대학 응용생명과학부) ;
  • 이상협 (경북대학교 농업생명과학대학 응용생명과학부) ;
  • 전상오 (경북대학교 농업생명과학대학 응용생명과학부) ;
  • 곽세연 (경북대학교 농업생명과학대학 응용생명과학부) ;
  • 박준홍 (경상북도 농업기술원 농업환경연구과) ;
  • 김장억 (경북대학교 농업생명과학대학 응용생명과학부)
  • Received : 2016.11.03
  • Accepted : 2016.11.29
  • Published : 2016.12.31

Abstract

Residual patterns of fungicides fludioxonil and metconazole applied 2 or 3 times on wheat were investigated with consideration for their distribution rates in each compartment of wheat. Wheat samples collected at harvesting day were divided into three compartments such as grain, hull and straw, and the pesticide residue analysis was individually carried out to such compartments of wheat. The analytical methods of fungicide residues in wheat were acceptable, with recoveries of 84.3 to 113.3% and correlation coefficients of 0.1 to 4.7%. Due to the systemic characteristics, the residual amounts of metconazole in the grain part of wheat were greater as 0.13~0.17 mg/kg than those amounts (0.01-0.03 mg/kg) for fludioxonil. To absolute residue amounts of the fungicides in one wheat plant, their distribution rates in each compartment of wheat were the highest in straws (68.5-70.7%), followed by hulls (29.0-31.0%) and grains (0.2-0.8%).

Acknowledgement

Grant : BK21플러스

Supported by : 경북대학교

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