Free radical scavenging activities, growth and metal uptake in carrot (Daucus carota L.) plant under higher concentration of arsenic

In the present study, growth of carrot (Daucus carota L.) plants parts (EDP and Leaf) were significantly influenced under arsenic treated pot after 15, 30, 45 and 60DAS. Fresh weight of EDP was not significantly affected upto 30ppm of arsenic treated plant after 30DAS, while at > 30ppm treatments it was significantly (P < 0.05) affected. Chl-a content was more than Chl-b in leaf of arsenic treated plant after both 30 and 60 DAS. Proline content was found to be increasing trends in leaf under higher arsenic treated plant leaf and it was maximum from T4 to T6 treatment after 60 DAS. Ca, P, K, fructose, sucrose and TSS were found to be more in EDP after 60 DAS followed by 30 DAS. SODRSA and HRSA was more in leaf part upto T2 and T3 treatment after 30 and 45 DAS respectively, as compared with control and other treatments (EDP). No any significant (P < 0.05) corelation was observed in leaf and EDP of carrot plant for DPPHSRA after 30, 45 and 60DAS. Total phenolic content was more in EDP as compared with leaf after 60DAS followed by 30 and 45days. After 30DAS in EDP showed less amount of arsenic uptake in almost all arsenic treated plant as compared with leaf part, while after 45 and 60DAS, arsenic uptake were maximum in EDP part as compared with leaf.