Application of silicon and biochar alleviates the adversities of arsenic stress in maize by triggering the morpho-physiological and antioxidant defense mechanisms

• DOI: 10.3389/fenvs.2022.979049
• Publication Date: 2022-10-24T07:03:59Z
• Authors: Abdul Sattar; Ahmad Sher; Mohammed A. S. Ab...; Muhammad Ijaz; Muhammad Nawaz; Sami Ul-Allah; Tahira Abbas; Adnan Noor Shah; Mohamed S. Imam; Nader R. Abdelsalam; Mohamed E. Hasan; Aown Abbas; Muhammad Mansoor ...
• Keywords: APX

Arsenic (As) contamination in the soil adversely affects crop productivity, grain quality, and human health. A pot experiment was performed to assess sole combined effects of Si biochar on growth, physiological antioxidant defense mechanisms, yield, quality maize. Soil treatments comprised control (no treatment), As, Si, biochar, + As placed a completely randomized design with three replications. toxicity significantly reduced chlorophyll (5.18%), b (33.87%), (11.67%), primary metabolites [soluble protein (54.93%), amino acids (24.85%), total soluble sugars (39.77%), phenolic contents (25.88%)], while increasing activities enzymatic antioxidants such as superoxide dismutase (SOD) by 43.51%, peroxidase (POD) 47.93%, catalase (CAT) 47.98%, ascorbate (APX) 59.02%, well that lipid peroxidation leaves In addition, yield yield-related attributes relative respective controls. Among applications, interactive effect improved maize (12.12%) triggering proline reducing H 2 O MDA contents. The application enhanced shoots As-contaminated plants, concentration (69%) grains (142%). conclusion, found be fruitful amendment strategy improve reduce toxic limit under soil. results this study may useful for cultivation food crops AS-contaminated soils, but before commercial recommendation, more trails are required field conditions.