The phytoremediation potential of bioenergy crop Ricinus communis for DDTs and cadmium co-contaminated soil

► Significant differences in biomass exist among the 23 genotypes of Ricinus communis. ► Bioconcentration factor of DDTs was higher in castor than other reported plants. ► Among the 23 castor genotypes, B09053 accumulated the highest DDTs and Cd. ► Castor is a promising candidate for phytoremediation of DDTs and Cd co-contaminated soils.