Vol. 110 No. 2 (2016)
Research Papers

Effects of lead (Pb) on <i>Jatropha curcas</i> L. growth under hydroponic conditions

Enrico Palchetti
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Chiara Grassi
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Alberto Masoni
University of Florence, School of Matematics, Physics e Natural Sciences, Depatment of Biology (BIO)
Bio
Claudia Gabriela Zubieta
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Elena Valenzi
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Anne Whittaker
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Stefano Benedettelli
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Vincenzo Vecchio
University of Florence, School of Agriculture, Department of Agrifood and Environmental Sciences (DISPAA)
Bio
Published December 22, 2016
How to Cite
Palchetti, E., Grassi, C., Masoni, A., Zubieta, C. G., Valenzi, E., Whittaker, A., Benedettelli, S., & Vecchio, V. (2016). Effects of lead (Pb) on <i>Jatropha curcas</i&gt; L. growth under hydroponic conditions. Journal of Agriculture and Environment for International Development (JAEID), 110(2), 205-216. https://doi.org/10.12895/jaeid.2016110.449

Abstract

The contamination of the environment with pollutants, like heavy metals from human activity, has caused the loss of agricultural land. One possible solution could be the utilization of phytoremediation technique with particular plant, capable of absorbing the contaminants from soil. Jatropha curcas, an important plant for the biodiesel production, in particular in tropical areas, has the capacity to grown in marginal land, compromised for food cultivation. The experiment was conducted in hydroponic conditions with the objective to evaluate the response and growth parameters of juvenile plants grown in presence of different Pb levels (0-100-200 mg/L). It was possible to study the interaction in the plant between some mineral element (Ca, Mg, Zn and Fe) and morphological parameters and Pb, and evaluate some tolerance indicators. Results showed that the plants were able to grow in presence of Pb and to accumulate high levels of heavy metal in the roots, followed by the stems and leaves. However, Jatropha curcas subjected to Pb treatment demonstrated stunted growth and alterations in mineral elements contents. The results suggest that J. curcas may tolerate the levels of Pb imposed, but there is low translocation of heavy metal to aerial tissues, within the time period of analysis.