Data · dataset · 2026
Diffusive Gradients in Thin-Films (DGT) as a Predictor of Herbicide Residue Bioavailability and Phytotoxicity across Contrasting Soil Types
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.1021/acs.est.6c02813.s001
Herbicides that remain in soil long after their application can be toxic to organisms and crops sown in subsequent cycles.
Description
However, quantifying the bioavailability and potential toxicity of herbicide residues across different soil types remains problematic. In this study, we evaluated the diffusive gradients in thin-films (DGT) technique for measuring potentially bioavailable imazamox (IMX) residues in six different soil types from southern Australia.
Soils were spiked with IMX (1 to 360 μg IMX kg<sup>–1</sup>) and incubated for 28 days. Following incubation, a root elongation test was conducted to assess IMX residue toxicity to wheat (Triticum aestivum cv. Calibre), and herbicide residue concentrations were quantified using DGT (C<sub>DGT</sub>) and a solvent extraction technique.
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Solvent-extractable IMX concentrations were highest in the Sodosol, followed by Tenosol, Vertosol, Chromosol, Dermosol, and Calcarosol for IMX-spiked concentrations between 5 and 180 μg kg<sup>–1</sup>. Furthermore, dose-response analysis between wheat root elongation, C<sub>DGT</sub>, and solvent-extractable IMX demonstrated that DGT was a more consistent predictor of IMX residue toxicity for all soil types tested. Overall, this study demonstrates that the DGT technique is an effective tool for establishing soil toxicity thresholds across diverse soil types and for elucidating relationships between bioavailable herbicide residues and phytotoxicity.
Links
Where it is published
- DOI doi.org/10.1021/acs.est.6c02813.s001 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
- From keywords
- Chemistry · Chemistry · Chemistry · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Ecology · Ecology · Ecology · Life Sciences · Life Sciences · Life Sciences · Medicine & Health · Medicine & Health · Medicine & Health · Plant biology · Plant biology · Plant biology
Provenance · 3 source records, 23 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34036694 | 11 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/34036694 | 11 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/34036694 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].anzsrc:group:3103 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3108 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Plant Biology'] |
| concepts[field].anzsrc:group:3108 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Plant Biology'] |
| concepts[field].anzsrc:group:3108 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Plant Biology'] |
| concepts[field].local:field:chemistry | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/rights |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |