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논문 기본 정보

자료유형
학술저널
저자정보
In Kon Park (Syngenta Korea) Umurzokov Mirjalol (Chungnam National University) Aung Bo Bo (Daeseungbiofarm) Hoyong Shin (Gyeongsang National University) Kwang Min Cho (Daeseungbiofarm) Kee Woong Park (Chungnam National University) Jeung Joo Lee (Gyeongsang National University)
저널정보
한국잡초학회·한국잔디학회 Weed&Turfgrass Science Weed&Turfgrass Science Vol.11 No.2
발행연도
2022.6
수록면
107 - 118 (12page)

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초록· 키워드

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The study was conducted to evaluate the baseline sensitivity index (BSI) of Scirpus juncoides and Monochoria vaginalis populations to 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors, benzobicyclon, and mesotrione and to estimate the potential risk of the HPPD inhibitor resistance in paddy fields in Korea. The seeds of matured S. juncoides and M. vaginalis biotypes were collected from a total of 105 sites and a whole plant dose-response test was performed. Nonlinear fit curve (DoseResp) analysis revealed that GR<SUB>50</SUB> values of S. juncoides biotypes ranged from 9.6 to 16.5 g a.i. ha<SUP>-1</SUP> to mesotrione and 13.1 to 26.4 g a.i. ha<SUP>-1</SUP> to benzobicyclon. BSI was 1.72 and 2.01 for mesotrione and benzobicyclon respectively. The GR50 values of M. vaginalis populations ranged from 10.9 to 16.3 g a.i. ha<SUP>-1</SUP> to mesotrione and 11.7 to 21.1 g a.i. ha<SUP>-1</SUP> to benzobicyclon. BSI was 1.48 for mesotrione and 1.78 for benzobicyclon. No shift in mesotrione and benzobicyclon sensitivity was observed suggesting that these HPPD herbicides can still be used very effectively to control S. juncoides and M. vaginalis populations in rice fields in South Korea. However, we strongly suggest that constant monitoring and baseline sensitivity studies need to be conducted continuously to detect the evolution of herbicide-resistant weed biotypes.

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Abstract
Introduction
Materials and Methods
Results and discussion
Conclusion
References

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