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자료유형
학술저널
저자정보
Aung Bo Bo (Chungnam National University) Ok Jae Won (Chungnam National University) In Kon Park (Syngenta Korea Jincheon Station) Sug-Won Roh (Rural Development Administration Food Crop Industry Technology Service Division) Kee Woong Park (Chungnam National University)
저널정보
한국잡초학회·한국잔디학회 Weed&Turfgrass Science Weed&Turfgrass Science Vol.6 No.4
발행연도
2017.12
수록면
350 - 354 (5page)

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Conyza canadensis is the weed species which most frequently develops resistance to glyphosate in many agricultural crop fields. The continuous use of glyphosate has resulted in the spontaneous occurrences of resistant biotypes. This research was conducted to investigate the response of suspected C. canadensis biotypes to glyphosate. Seeds of C. canadensis were collected from 18 sites in tangerine orchards in Jeju province of Korea. In the preliminary screening, 6 resistant and 12 susceptible biotypes were found at the recommended glyphosate rate (3.28 ㎏ a.i. ㏊<SUP>-1</SUP>). The susceptible biotypes were completely killed at the field application rate whereas the resistant biotypes were initially injured but recovered 14 days after glyphosate application. This is the first case of glyphosate resistance found in Korea despite the national ban on genetically modified glyphosate tolerant crops cultivation. Extended monitoring should be conducted to understand how widely spread the glyphosate resistant C. canadensis is and to estimate the severity of this weed problem in the tangerine orchards of Korea.

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UCI(KEPA) : I410-ECN-0101-2019-523-000139534