ABSTRACT

This chapter explains the study of possible detoxification ability of selenate in native cadmium (Cd)-contaminated soil. The Cd-contaminated soil samples were collected from the Xi’an, Shaanxi, China. A pot experiment was conducted in a greenhouse located at Northwest A&F University in Shaanxi Province, China. For the treatments, 5 kg of air-dried soil was placed in pots. The chapter shows the effects of exogenous selenate on pak choi shoot length and root height on Cd-contaminated soil. Selenate has no significant effect on root length and shoot height of pak choi (p > 0.05), except at the application of selenate concentration of 1 mg/kg. Moreover, shoot height of pak choi was 22.3% higher than that of the control treatment. Compared with non-selenate treatment, the biomass of pak choi increased by 87.7%, 117.0%, and 55.2% when selenate was applied at the concentration of 0.5, 1, and 2.5 mg/kg, respectively.