Year 2023, Volume 8, Issue 1

Year : 2023
Volume : 8
Issue : 1
Authors : Adarsh KUMAR, Maria MALEVA, Galina BORISOVA, Olga VOROPAEVA, Nadezhda CHUKINA, Artem SOBENIN, TRIPTI
Abstract : The interest to bacterial biofertilizers (BFs) is currently increasing since their application is environment friendly and cheaper in comparison with chemical fertilizers. BFs application reduces the metals availability in the soil through chelation, thereby reducing the toxicity of pollutants. The aim of the research was to study the effect of BF based on biochar and metal tolerant plant growth promoting rhizobacteria (PGPR) on growth parameters, copper accumulation and lipid peroxidation level in Brassica oleracea L. Bacillus altitudinis strain TF16a isolated from the rhizospheric soil of Tussilago farfara L. growing close to copper smelter was used to prepare the inoculum. To obtain BF, liquid inoculum of PGPR (108 CFU mL-1) was mixed with sterile substrate. Plants were grown in pot for 30 days. In the control substrate and with the addition of BF, the copper content was two times lower than the maximum permissible concentration for Russia. It was found that combined action of BF with Cu had a positive effect on the growth parameters in B. oleracea. Copper application led to the significant increase in its accumulation in shoot and root which was accompanied by the increase in malondialdehyde content in cabbage leaves. The combined action of BF and Cu reduced Cu accumulation and mitigated peroxidation processes. Thus, it can be concluded that biochar based biofertilizer promoted growth and alleviated copper toxicity in B. oleracea.
For citation : Kumar, A., Maleva, M., Borisova, G., Voropaeva, O., Chukina, N., Sobenin, A., Tripti (2023). Biochar based bacterial biofertilizer promotes growth and mitigates copper toxicity in Brassica oleracea. AGROFOR International Journal, Volume 8. Issue No. 1 pp. 38-45. DOI: 10.7251/AGRENG2301038K
Keywords : Bacillus altitudinis, cabbage, biochar, plant growth, agrobiotechnology
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