Celem badań było sprawdzenie działania doglebowej aplikacji krzemu (Si) na złagodzenie stresu u dwóch odmian pszenicy spowodowanego nadmiarem miedzi (Cu) w glebie. Dwuletnie badania przeprowadzono w warunkach hali wegetacyjnej z wykorzystaniem wazonów o pojemności 2,3 kg gleby. Przed wypełnieniem wazonów glebę zanieczyszczono miedzią w postaci CuSO4 w dawce 200 mg/kg Cu. Krzem był aplikowany doglebowo przed siewem roślin w dawkach 200 i 400 mg/kg Si w postaci Na2SiO3. Jako rośliny testowe użyto dwóch odmian pszenicy – Lindbergh i Kandela. Zastosowana dawka Cu była toksyczna dla obu badanych odmian pszenicy i spowodowała spadek biomasy pędów. Doglebowa aplikacja Si ograniczyła negatywny wpływ miedzi tylko dla odmiany Lindbergh.

The aim of the study was to test the effect of soil silicon (Si) application to relieve stress in two cultivars of wheat caused by excess of copper (Cu) in the soil. Two-year research was carried out in greenhouse with the use of vases with a capacity of 2.3 kg of soil. Before filling the pots, the soil was contaminated with copper in the form of CuSO4 in dose of 200 mg/kg Cu. Silicon was applied to the soil before sowing the plants in doses of 200 and 400 mg/kg Si in the form of Na2SiO3. Two wheat cultivars were used as test plants – Lindbergh and Kandela. The applied dose of Cu was toxic for both cultivars and caused a reduction of the shoot biomass. The soil application of Si limited the negative effect of copper only in the case of the Lindbergh cultivar.

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