The effect of simultaneous magnesium application on the biological effects of titanium
2007
Kuzel, S.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Cigler, P.,Vysoka Skola Chemicko-technologicka, Prague (Czech Republic) | Hruby, M.,Akademie Ved, Prague (Czech Republic). Ustav Makromolekularni Chemie | Vydra, J.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Pavlikova, D.,Ceska Zemedelska Univ., Prague (Czech Republic) | Tlustos, P.,Ceska Zemedelska Univ., Prague (Czech Republic)
Most of the works published since the beginning of the 20th century have brought interesting results about beneficial effects of titanium on plants, but much less is known about its phytotoxic effects at higher doses. Here we demonstrate the influence of Mg treatment on the phytotoxic effects of Ti. Mg, Ti + Mg and two different concentrations of Ti leaf sprays were applied on oats (Avena sativa cv. Zlatak) grown on three different soil types (Fluvisol, Luvisol and Chernozem). Physiological parameters of oats as well as some essential elements contents were analyzed. The foliar applications of Ti at doses equal or higher than 10 mg/kg caused significant toxic manifestations. Mg partially ammeliorated these toxic effects if applied together with Ti. The effect was strong on Fluvisol, but weaker on Chernozem and Luvisol. Ti effects were more significant if the plant nutrition was far from being optimal. This was most evident in the case of Fluvisol which was deficient in Mg, Fe, Mn and Zn. It seems that Ti possesses a generally equalizing effect on the elements content in the plant.
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