Claim · model-written summary
Dry biomass of Cultivar A soybean was reduced by 16% at the highest dicamba rate.
- Taxon
- soybean
Glycine maxe0 - Material
- Cultivar Ae6
- Treatment
- dicamba applied at 0 to 1,440 g ae ha⁻¹e1
- Outcome
- Dry biomasse6
- Direction
- reductione6
- Value
- 16% for Cultivar Ae6
- Qualifier
- dose-dependente6
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dicamba-resistant (DR) soybean cultivars are essential elements in managing broadleaf weeds in modern production systems”
e1“Field trials were conducted in 2022 and 2023, with dicamba applied at 0 to 1,440 g ae ha⁻¹ during the V5 to V6 stages”
e6“Dry biomass reduction was also dose-dependent, reaching 16% for Cultivar A and 10% for Cultivar B at the highest rate”
Title
Response of dicamba-resistant soybean cultivars to postemergence dicamba dose exposure
Willian Felipe Larini; Alfredo Junior P. Albrecht; Debora C. Neuberger; et al. Weed Technology 2025. doi:10.1017/wet.2025.10046
Other claims from this paper (13)
- Intervention effect Visible injury in dicamba-resistant soybean increased with dicamba rate, reaching 18% (Cultivar A) to 20% (Cultivar B) at 1,440 g ae ha⁻¹ at 3 d after treatment.
- Intervention effect Dicamba injury symptoms in soybean declined to below 10% by 4 weeks after treatment.
- Intervention effect Chlorophyll fluorescence of soybean was not significantly affected by dicamba at 2 and 4 WAT.
- Intervention effect Height of soybean was reduced at 4 WAT only at the highest dicamba rate of 1,440 g ae ha⁻¹.
- Intervention effect Height differences in soybean disappeared by maturity.
- Intervention effect Dry biomass of Cultivar B soybean was reduced by 10% at the highest dicamba rate.
- Intervention effect Pod reduction in dicamba-treated DR soybean was minor (<3.5%) and not significant.
- Intervention effect Dicamba applied from 288 to 864 g ae ha⁻¹ caused minimal soybean yield reductions below 5%.
- Intervention effect Dicamba applied from 288 to 864 g ae ha⁻¹ caused no significant biomass reduction in soybean.
- Intervention effect At 1,152 g ae ha⁻¹ dicamba, yield reductions reached 7% and 9% for Cultivars A and B.
- Intervention effect At 1,440 g ae ha⁻¹ dicamba, yield of Cultivar A soybean was reduced by 12%.
- Intervention effect At 1,440 g ae ha⁻¹ dicamba, yield of Cultivar B soybean was reduced by 14%.
- Recommendation The authors recommend adhering to recommended dicamba use guidelines, since applications above the tolerated rates can reduce soybean yield by up to 14%.