Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea
Echinochloa species is one of the most problematic weed species due to its high competitiveness and increasing herbicide resistance. Florpyrauxifen-benzyl, a new auxin herbicide, was recently introduced for Echinochloa management; however, the potential risk for the development of herbicide resistan...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Frontiers Media S.A.
2021-06-01
|
Series: | Frontiers in Plant Science |
Subjects: | |
Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.656642/full |
id |
doaj-ebf3d0ed250e40c0a03e8901aecb5f14 |
---|---|
record_format |
Article |
spelling |
doaj-ebf3d0ed250e40c0a03e8901aecb5f142021-06-09T14:42:28ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-06-011210.3389/fpls.2021.656642656642Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in KoreaSoo-Hyun Lim0Harim Kim1Tae-Kyeong Noh2Ji-Soo Lim3Min-Jung Yook4Jin-Won Kim5Jee-Hwan Yi6Do-Soon Kim7Department of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaDepartment of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaDepartment of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaDepartment of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaDepartment of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaCrop Protection Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, South KoreaIntegrated Field Science, Corteva Agriscience, Indianapolis, IN, United StatesDepartment of Plant Science, Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaEchinochloa species is one of the most problematic weed species due to its high competitiveness and increasing herbicide resistance. Florpyrauxifen-benzyl, a new auxin herbicide, was recently introduced for Echinochloa management; however, the potential risk for the development of herbicide resistance in Echinochloa species has not been well-investigated. Thus, this study was conducted to evaluate the baseline sensitivity of Echinochloa species to florpyrauxifen-benzyl to estimate the risk of future resistance development. A total of 70 and 71 accessions of Echinochloa crus-galli and Echinochloa oryzicola were collected from paddy fields in Korea, respectively. These two Echinochloa species were grown in plastic pots up to the 5-leaf stage, and treated with florpyrauxifen-benzyl at a range of doses from 2.2 g to 70.0 g a.i. ha–1. Nonlinear regression analyses revealed that GR50 values for E. oryzicola ranged from 4.54 g to 29.66 g a.i. ha–1, giving a baseline sensitivity index (BSI) of 6.53, while those for E. crus-galli ranged from 6.15 g to 16.06 g a.i. ha–1, giving a BSI of 2.61. Our findings suggest that E. oryzicola has a greater potential risk than E. crus-galli for the development of metabolism-based resistance to florpyrauxifen-benzyl.https://www.frontiersin.org/articles/10.3389/fpls.2021.656642/fullbaseline sensitivityEchinochloa speciesflorpyrauxifen-benzylherbicide resistanceRinskor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Soo-Hyun Lim Harim Kim Tae-Kyeong Noh Ji-Soo Lim Min-Jung Yook Jin-Won Kim Jee-Hwan Yi Do-Soon Kim |
spellingShingle |
Soo-Hyun Lim Harim Kim Tae-Kyeong Noh Ji-Soo Lim Min-Jung Yook Jin-Won Kim Jee-Hwan Yi Do-Soon Kim Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea Frontiers in Plant Science baseline sensitivity Echinochloa species florpyrauxifen-benzyl herbicide resistance Rinskor |
author_facet |
Soo-Hyun Lim Harim Kim Tae-Kyeong Noh Ji-Soo Lim Min-Jung Yook Jin-Won Kim Jee-Hwan Yi Do-Soon Kim |
author_sort |
Soo-Hyun Lim |
title |
Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea |
title_short |
Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea |
title_full |
Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea |
title_fullStr |
Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea |
title_full_unstemmed |
Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea |
title_sort |
baseline sensitivity of echinochloa crus-gall and e. oryzicola to florpyrauxifen-benzyl, a new synthetic auxin herbicide, in korea |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Plant Science |
issn |
1664-462X |
publishDate |
2021-06-01 |
description |
Echinochloa species is one of the most problematic weed species due to its high competitiveness and increasing herbicide resistance. Florpyrauxifen-benzyl, a new auxin herbicide, was recently introduced for Echinochloa management; however, the potential risk for the development of herbicide resistance in Echinochloa species has not been well-investigated. Thus, this study was conducted to evaluate the baseline sensitivity of Echinochloa species to florpyrauxifen-benzyl to estimate the risk of future resistance development. A total of 70 and 71 accessions of Echinochloa crus-galli and Echinochloa oryzicola were collected from paddy fields in Korea, respectively. These two Echinochloa species were grown in plastic pots up to the 5-leaf stage, and treated with florpyrauxifen-benzyl at a range of doses from 2.2 g to 70.0 g a.i. ha–1. Nonlinear regression analyses revealed that GR50 values for E. oryzicola ranged from 4.54 g to 29.66 g a.i. ha–1, giving a baseline sensitivity index (BSI) of 6.53, while those for E. crus-galli ranged from 6.15 g to 16.06 g a.i. ha–1, giving a BSI of 2.61. Our findings suggest that E. oryzicola has a greater potential risk than E. crus-galli for the development of metabolism-based resistance to florpyrauxifen-benzyl. |
topic |
baseline sensitivity Echinochloa species florpyrauxifen-benzyl herbicide resistance Rinskor |
url |
https://www.frontiersin.org/articles/10.3389/fpls.2021.656642/full |
work_keys_str_mv |
AT soohyunlim baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT harimkim baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT taekyeongnoh baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT jisoolim baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT minjungyook baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT jinwonkim baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT jeehwanyi baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea AT dosoonkim baselinesensitivityofechinochloacrusgallandeoryzicolatoflorpyrauxifenbenzylanewsyntheticauxinherbicideinkorea |
_version_ |
1721386691540811776 |