Mitigation of lead (Pb) toxicity in rice cultivated with either ground water or wastewater by application of acidified carbon
Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic
Typ dokumentu časopisecké články
PubMed
35092889
DOI
10.1016/j.jenvman.2022.114521
PII: S0301-4797(22)00094-9
Knihovny.cz E-zdroje
- Klíčová slova
- Acidified carbon, Gas exchange attributes, Heavy metal, Irrigation sources, Plant growth attributes, Rice,
- MeSH
- dřevěné a živočišné uhlí MeSH
- látky znečišťující půdu * analýza toxicita MeSH
- lidé MeSH
- odpadní voda MeSH
- olovo toxicita MeSH
- podzemní voda * MeSH
- půda MeSH
- rýže (rod) * MeSH
- uhlík MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- dřevěné a živočišné uhlí MeSH
- látky znečišťující půdu * MeSH
- odpadní voda MeSH
- olovo MeSH
- půda MeSH
- uhlík MeSH
Toxicity induced by a high concentration of lead (Pb) can significantly decrease plant's growth, gas exchange, and yield attributes. It can also causes cancer in humans. The use of organic amendments, especially biochar, can alleviate Pb toxicity in different crops. The application of biochar can decrease the uptake of Pb by plant roots. However, the high pH of thermo-pyrolyzed biochar makes it an unfit amendment for high pH soils. As Pb is an acute toxin and its uptake in rice is a major issue, the current experiment was conducted to explore the efficacy of chemically produced acidified carbon (AC) to mitigate Pb toxicity in rice. Lead was introduced in concentrations of 0, 15, and 30 mg kg-1 soil in combination with 0, 0.5, and 1% AC, underground water (GW) and wastewater (WW) in rice plants. The addition of 1% AC significantly improved the plant height (52 and 7%), spike length (66 and 50%), 1000 grains weight (144 and 71%) compared to 0% AC under GW and WW irrigation, respectively at 30 mg Pb kg-1 soil (30 Pb) toxicity. Similar improvements in the photosynthetic rate, transpiration rate and stomatal conductance also validated the effectiveness of 1% AC over 0% AC. A significant decrease in electrolyte leakage and plant Pb concentration by application of 0.5 and 1% AC validates the effectiveness of these treatments for mitigating 30 Pb toxicity in rice compared to 0% AC under GW or WW irrigation. In conclusion, 1% AC is an effective amendment in alleviating Pb toxicity in rice irrigated with GW or WW at 30 Pb.
Department of Biology University of Waterloo Waterloo ON N2L 3G1 Canada
Department of Botany Hindu College Moradabad 244001 India
Department of Soil and Environmental Science The University of Agriculture Peshawar Pakistan
Kahramanmaraş Sütçü İmam University Faculty of Forestry Forest Engineering Kahramanmaraş Turkey
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