ARCHNA BHATIA, SONIKA, RAJNI AND RACHNA BHATERIA*
Department of Environmental Sciences, Maharshi Dayanand University, Rohtak-124 001 (Haryana), India
*(e-mail : bioremediationlab.mdu@gmail.com; Mobile : 92546 45473)
(Received : October 15, 2022; Accepted : November 21, 2022)
ABSTRACT
In the present study, iron oxide nanoparticles were synthesized by using chemical reduction method. Effect of iron oxide nanoparticles with different concentrations i.e. 150 to 600 mg/l on mungbean and okra seed germination was evaluated. Around 100% germination rate and highest germination index were observed in okra and mungbean at 450 and 600 mg/l iron nanoparticles concentration, respectively. After germination maximum shoot elongation was observed at 150 and 600 mg/l iron oxide nanoparticles concentration in mungbean and okra, respectively, while maximum root elongation was observed at 450 mg/l in mungbean and 600 mg/l in okra seeds. Maximum fresh and dry biomass was observed at 150 and 450 mg/l in mungbean and okra, while minimum was observed at 600 mg/l iron oxide nanoparticles concentration in germinated seeds i.e. mungbean and okra. Maximum shoot iron content was observed at 300 mg/l in okra and 600 mg/l in mungbean, while maximum root iron content in both mungbean and okra was observed at higher concentrations i.e. 600 mg/l. No obvious phytotoxicity to okra and mungbean at lower concentrations was observed.
Key words : Iron oxide nanoparticles, seed germination, growth parameters, translocation