Gorgan University of Agricultural Sciences International Journal of Plant Production 1735-6814 3 3 2012 07 29 Heavy metal toxicity: Effect on plant growth, biochemical parameters and metal accumulation by Brassica juncea L. 65 76 653 10.22069/ijpp.2012.653 EN R. John Centre for Energy Studies, Indian Institute of Technology Dehli, Hauz Khas, New Dehli, 110016, India. P. Ahmad Biochemistry Lab, Centre for Rural Development and Technology, Indian Institute of Technology Dehli, Hauz Khas, Dehli, 110016, India. K. Gadgil Centre for Energy Studies, Indian Institute of Technology Dehli, Hauz Khas, New Dehli, 110016, India. S. Sharma Biochemistry Lab, Centre for Rural Development and Technology, Indian Institute of Technology Dehli, Hauz Khas, Dehli, 110016, India. Journal Article 2012 07 29 Plant growth, pigment concentration, biochemical parameters and uptake of heavy metals were determined for <em>Brassica juncea</em> L. in response to cadmium and lead stress. The plant exhibited a decline in growth, chlorophyll content and carotenoids with Cd and Pb but Cd was found to be more detrimental than Pb treatment in <em>B. juncea</em>. The protein content was decreased by Cd (900 μM) to 95% and 44% by Pb (1500 μM) at the flowering stage. Proline showed increase at lower concentrations of Cd and Pb but at higher concentrations it showed decrease. More accumulation of Cd and Pb was observed in roots than shoots in <em>B. juncea. </em>Cd was found to be more accumulated than Pb but higher concentrations of Pb hampers the Cd absorption. https://ijpp.gau.ac.ir/article_653_06af184ee210bcaafe0d7cbcc16398fc.pdf