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Occurrence and distribution of ALS inhibiting herbicide-resistant weeds in the paddy field of Gyeongnam province

경남지역 ALS 저해 제초제 저항성 논잡초의 발생 및 분포

  • Lee, Yong Hyun (Division of Applied Life Science (BK21 Plus), Gyeongsang National University) ;
  • Shim, Soo Yong (Division of Applied Life Science (BK21 Plus), Gyeongsang National University) ;
  • Kim, Jin-Won (Crop Protection Division, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Jeongran (Crop Protection Division, National Institute of Agricultural Sciences, RDA) ;
  • Park, Kee Woong (Department of Crop Science, Chungnam National University) ;
  • Lee, Jeung Joo (Department of Plant Medicine, IALS, Gyeongsang National University)
  • 이용현 (경상대학교 응용생명과학부(BK21 Plus)) ;
  • 심수용 (경상대학교 응용생명과학부(BK21 Plus)) ;
  • 김진원 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 이정란 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 박기웅 (충남대학교 농업생명과학대학 식물자원학과) ;
  • 이증주 (경상대학교 식물의학과, 농업생명과학연구원)
  • Received : 2018.09.11
  • Accepted : 2018.09.27
  • Published : 2018.09.30

Abstract

This study was carried out to investigate the occurrence and distribution of ALS inhibiting herbicide-resistant weeds and to estimate the appeared areas of resistant weeds in the paddy fields of Gyeongnam province of Korea in 2017 and 2018 using a soil assay method. Compared with the 2012 survey, this study showed that the infested ratio of ALS inhibiting herbicide-resistant weeds increased from 1.0% to 66.8% and the infested area increased from 876 ha to 49,008 ha. The infested area of ALS inhibiting herbicide-resistant weeds was estimated in Ulsan-si (8.4%), Hapcheon-gun (8.3%), Haman-gun (7.9%), Goseong-gun (7.9%), Hadong-gun (7.3%), Jinju-si (7.2%), Changnyeong-gun (7.0%), Gimhae-si (6.4%), Miryang-si (5.5%), Busan-si (4.9%), Uiryeong-gun (4.6%), Namhae-gun (4.3%), Geochang-gun (4.2%), Changwon-si (3.8%), Geoje-si (2.9%), Yangsan-si (1.8%), Sancheong-gun (0.9%) and Tongyeong-si (0.4%), and the herbicide resistant weeds was not occurred in Hamyang-gun. The most dominant ALS inhibiting herbicide-resistant weeds in paddy fields were Monochoria vaginalis, followed by Echinochloa oryzicola, Lindernia dubia, Scirpus juncoides, Ludwigia prostrata, Cyperus difformis, Sagittaria trifolia and Rotala indica. ALS inhibiting herbicide-resistant M. vaginalis, L. dubia, and E. oryzoides occurred throughout Gyeongnam province, and ALS inhibiting herbicide-resistant S. trifolia and R. indica were only found in Gimhae-si. Therefore, these results will be utilized to estimate population dynamics of ALS inhibiting herbicide-resistant weeds and provide proper management practices in the paddy fields of Gyeongnam province.

Acknowledgement

Supported by : Rural Development Administration

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