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Phyton (Buenos Aires)
versión On-line ISSN 1851-5657
Resumen
MULLER, FL; CYSTER, LF; RAITT, LM y AALBERS, J. The effects of tin (Sn) additions on the growth of spinach plants. Phyton (B. Aires) [online]. 2015, vol.84, n.2, pp.461-465. ISSN 1851-5657.
An increase in bioavailable tin in the environment could result in bioaccumulation thereof in agricultural crops, and therefore, have adverse health consequences on humans that eat these crops. The aims of the current study were thus to assess the uptake of Sn by spinach plants, and the subsequent efects this will have on the uptake of Na, Zn, K, Ca, and Mg as well as the growth of spinach plants. Spinach plants were grown in sand culture and received tin at concentrations of 0.02, 0.2, 2 and 20 mg/L along with a nutrient solution. The uptake of tin at detectible concentrations only occurred at the highest concentrations (2 and 20 mg/L), and it was mostly retained in the roots of the plants. Tin additions also resulted in no visual toxicity symptoms, and might be beneficial to biomass production. Further field trials are needed to ensure that these experimental results remain true under field conditions.
Palabras clave : Beneficial; Heavy metals; Root allocation; Stannous chloride.