Claim · model-written summary
Diuron phytotoxicity was higher in sand than in loamy sand.
- Taxon
- wheat, chickpea, and canola
Cicer arietinum
Triticum aestivum.jpg?width=60)
Brassica napus var. napust0 - Treatment
- diurone2
- Outcome
- phytotoxicitye2
- Direction
- highere2
- Comparator
- loamy sande2
- Setting
- in sande2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
t0“wheat, chickpea, and canola”
e2“Diuron exhibits higher phytotoxicity in sand compared to loamy sand, with ED50 values (which is the dose at which diuron causes a 50% decrease in plant growth) of 0.03 mg kg-1 and 0.07 mg kg-1 for canola shoot biomass inhibition and 0.01 mg kg-1 and 0.06 mg kg-1 for root dry weight reduction, respectively”
Title
Phytotoxicity risk assessment of diuron residues in sands on wheat, chickpea, and canola
Win Win Pyone; Richard W. Bell; Michael T. Rose; et al. PLoS ONE 2024. doi:10.1371/journal.pone.0306865
Other claims from this paper (12)
- Intervention effect Canola was the most sensitive of the three crops to diuron in sand.
- Observation The ED50 for canola shoot biomass inhibition in sand was 0.03 mg/kg.
- Observation The ED50 for canola shoot biomass inhibition in loamy sand was 0.07 mg/kg.
- Observation The ED50 for canola root dry weight reduction in sand was 0.01 mg/kg.
- Observation The ED50 for canola root dry weight reduction in loamy sand was 0.06 mg/kg.
- Observation The ED50 for wheat shoot biomass was 0.11 mg/kg in sand and 0.24 mg/kg in loamy sand.
- Observation The ED50 for wheat root growth inhibition in sand was 0.14 mg/kg.
- Observation The ED50 for wheat root growth inhibition in loamy sand was 0.19 mg/kg.
- Mechanism The larger ED50 values in loamy sand are attributed to higher soil organic matter and cation exchange capacity, which reduced bio-available diuron.
- Association The ED50 values were lower than label concentrations and estimated average and maximum diuron residue loads in Western Australia paddocks.
- Recommendation Average diuron residue loads in Western Australia crop fields exceed the ED50 value, so crop rotations need careful planning to avoid phytotoxicity.
- Method / resource The log-logistic non-linear regression model was the most effective of the models for determining diuron toxicity thresholds.