Hossain et al. 2024 - cadmium uptake in salt-tolerant rice genotypes
Hossain and coauthors tested how soil pH and organic matter affected cadmium accumulation in rice grains grown in Cd-contaminated soil. This is controlled pot-experiment evidence for rice Cd drivers, not edible-salt occurrence evidence. The source is most useful for mitigation and source-apportionment logic because it links grain Cd to soil pH, organic matter, genotype, and soil-bioavailable Cd.
Key numbers
The abstract reports Cd-stressed soil at 5 mg/kg and soil pH treatments of 4, 7, and 9 with organic matter at 1%, 2%, and 3%. Table 3 reports grain Cd and soil-bioavailable Cd examples under organic-matter treatments:
| Variety | Organic matter | Grain Cd | Soil bioavailable Cd |
|---|---|---|---|
| BRRI 28 | 1% | 1.00 mg/kg | 0.44 mg/kg |
| BRRI 28 | 2% | 0.61 mg/kg | 0.32 mg/kg |
| BRRI 28 | 3% | 0.10 mg/kg | 0.18 mg/kg |
| Heera | 1% | 1.15 mg/kg | value continues in source table |
The authors state that low-pH soil increased Cd uptake and that increasing pH and organic matter decreased grain Cd concentration.
Methods (brief)
The study used separate pot experiments in Cd-stressed soil. It compared non-salt-tolerant rice varieties BRRI 28 and Heera with salt-tolerant BRRI 67 and BRRI 47. Soil pH and organic-matter treatments were varied, and grain Cd and soil-bioavailable Cd were measured.
Implications
Certification: Not a market benchmark, because it is a pot experiment in spiked Cd-stressed soil. It is useful evidence for mitigation and source apportionment in rice.
Courses: Useful for explaining why soil pH and organic matter are practical levers for Cd uptake.
App: Should not directly set consumer rice occurrence values, but can inform source-risk flags.
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Verification notes
The fetched filename placed the paper in a salt Cd queue because “salt tolerant rice” appeared in the title. The actual matrix is rice grain from a controlled pot experiment. Table 3 text extraction truncates the later rows; audit should verify the full treatment table before structured expansion.
Page history
The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.
| Commit | Date | Description |
|---|---|---|
| 50ec0f0 | 2026-05-30 | ingest auto-fetched 2026-05-30 2145 batch 1: 10 source pages |