Abstract
The mustard (Brassica juncea L.) plant is a well-known and widely accepted hyper-accumulator of heavy metals. The genetic makeup of mustard’s cultivars may significantly impact their phytoremediation capabilities. The present study aimed to investigate the growth performance, yield attributes, and heavy metal accumulation potential of B. juncea cv. Varuna, NRCHB 101, RH 749, Giriraj, and Kranti, cultivated in soil irrigated with wastewater (EPS) and bore-well water (MPS). EPS contributed more Cr, Cd, Cu, Zn, and Ni to tested mustard cultivars than the MPS. EPS reduced morphological, biochemical, physiological, and yield attributes of tested mustard cultivars significantly (p < 0.05) than the MPS. Among the tested cultivars of mustard plants, Varuna had the highest heavy metal load with the lowest harvest index (35.8 and 0.21, respectively). Whereas NRCHB 101 showed the lowest heavy metal load with the highest harvest index (26.9 and 0.43, respectively). The present study suggests that B. juncea cv. Varuna and NRCHB 101 could be used for the phytoextraction of heavy metals and reducing their contamination in food chain, respectively in wastewater irrigated areas of peri-urban India. The outcomes of the present study can also be utilized to develop a management strategy for sustainable agriculture in heavy metal polluted areas resulting from long-term wastewater irrigation.
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Acknowledgments
The authors would like to thank Head, Department of Botany; Coordinator, Center of Advanced Study in Botany and Coordinator, Institute of Eminence (IoE), Institute of Science, Banaras Hindu University, Varanasi, India for supporting requisite research resources throughout the entire work. UGC, New Delhi is gratefully acknowledged for financial assistance in the form of Junior and Senior Research Fellowship (Grant No. F.15-6 (DEC.2015)/2016 (NET) to Prince Kumar Singh during the present work.
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Prince Kumar Singh is grateful to UGC, New Delhi for providing financial support as Junior and Senior Research Fellowship (Grant No. F.15–6 (DEC.2015)/2016 (NET) during the present work.
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Rajesh Kumar Sharma and Prince Kumar Singh designed the study. Prince Kumar Singh performs the experimental work. Prince Kumar Singh analyze the data and wrote the manuscript. Jayshankar Yadav, Indrajeet Kumar and Umesh Kumar helped in experimental work, data analysis, and manuscript formatting. Rajesh Kumar Sharma supervised the research and provided valuable suggestions for manuscript preparation. All authors have read and agreed to the published version of the manuscript.
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Highlights
• B. juncea cultivars accumulate more heavy metals from wastewater irrigated soil.
• B. juncea cv. Varuna is used for remediation of heavy metals from contaminated soil.
• B. juncea cv. NRCHB 101 showed the highest yield with low heavy metal load.
• Cluster analysis showed poor relation between cv. NRCHB 101 and Varuna.
• B. juncea cv. NRCHB 101 is recommended for cultivation in wastewater irrigated areas.
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Singh, P.K., Yadav, J.S., Kumar, I. et al. Screening of mustard cultivars for phytoremediation of heavy metals contamination in wastewater irrigated soil systems. Environ Monit Assess 196, 321 (2024). https://doi.org/10.1007/s10661-024-12506-4
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DOI: https://doi.org/10.1007/s10661-024-12506-4