Exploring the effect of region on diversity and composition of weed seedbanks in herbicide‐resistant crop systems in the United States

BACKGROUND Soil seedbanks have been recognized as one of the crucial components of agricultural ecosystems. However, studies on the shift in structure and biodiversity of soil seedbanks in herbicide‐resistant crop systems are limited, and a functional trait perspective of the soil seedbank is often...

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Published in:Pest management science 2024-03, Vol.80 (3), p.1446-1453
Main Authors: Ren, Zhe, Gibson, David J., Gage, Karla L., Matthews, Joseph L., Owen, Micheal D. K., Jordan, David L., Shaw, David R., Weller, Stephen C., Wilson, Robert G., Young, Bryan G.
Format: Article
Language:English
Subjects:
Agricultural ecosystems
Agricultural management
agroecosystem
Biodiversity
Chemical pest control
Composition
Crops
Dispersion
functional diversity
functional trait
herbicide resistance
Herbicides
Heterogeneity
Pest control
Pest resistance
Seed banks
Seeds
Soil structure
Soils
Species diversity
Species richness
Transgenic plants
Weed control
Weeds
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Summary:BACKGROUND Soil seedbanks have been recognized as one of the crucial components of agricultural ecosystems. However, studies on the shift in structure and biodiversity of soil seedbanks in herbicide‐resistant crop systems are limited, and a functional trait perspective of the soil seedbank is often overlooked. RESULTS A 6 years experiment was conducted to investigate the roles of region, crop system, and weed management strategy on species richness, functional trait diversity, and composition of the weed seedbank. Species richness was different across the interaction of region and crop system, while functional trait diversity only showed difference across regions. Species and functional trait compositions were affected by the interaction of region and crop system. Specifically, the compositional difference among crop systems was mainly determined by the significant heterogeneity of group dispersion. CONCLUSION Growers and practitioners should consider weed functional traits in developing lasting agricultural management strategies. Long‐term weed research should draw attention to the impact of transgenic crop systems and specific management tactics on weed dispersal, functional composition, and resistance evolution of weed species in such agroecosystems. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. Exploring soil seedbank dynamics in herbicide‐resistant crop systems: implications for weed management strategies and biodiversity.
ISSN:1526-498X
1526-4998
DOI:10.1002/ps.7875