Environmental Sciences and Physics Department, Faculty of Sciences, Applied Ecology Research Center, “Lucian Blaga” University of Sibiu, 5–7, Dr. I. Raţiu Street, Sibiu, România, 550024
Magnetic nanoparticles phytotoxicity supplying the soil culture of the Lavandula angustifolia plantlets (lavender) after 190 days of growth was evaluated. The lavender plantlets grown in soil and irrigated with aqueous colloidal solutions of iron oxide (Fe3O4) nanoparticles coated with citric acid and 11.4 nm physical diameter, having different nanoparticles concentrations ranging between 19.6 µg/mL and 686 µg/mL. The influence of the iron oxide nanoparticles presence in the culture soil of lavender plantlets was evaluated at the level of seeds germinations, seedlings length, photo-assimilatory pigments content and photosynthesis efficacy.
Key words: iron oxide nanoparticles, magnetite, phytotoxicity, chlorophylls, Lavandula angustifolia.
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