English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

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 GR 50  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.

Baseline Sensitivity of Echinochloa crus-gall and E. oryzicola to Florpyrauxifen-Benzyl, a New Synthetic Auxin Herbicide, in Korea