Global drivers of herbicide-resistant weed richness in major cereal crops worldwide.

ABSTRACT:

Background

The number of herbicide-resistant weeds differs across the globe but the reasons for this variation are poorly understood. Taking a macroecological approach, the role of six drivers of herbicide resistance in a country was examined for barley, maize, rice and wheat crops worldwide. Drivers captured agronomic measures (crop harvested area, herbicide and fertilizer input) as well as sources of sampling bias that result in under-reporting of herbicide resistance (human population density, research intensity and time since the first record of resistance).

Results

Depending on the crop, best subset regression models explained between 60% and 80% of the variation in herbicide-resistant weeds recorded in countries worldwide. Global prevalence of herbicide-resistant weeds

SUBMITTER: Hulme PE 

PROVIDER: S-EPMC9306702 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature