Silicon (Si) is the second most abundant element in soil. Previous researches have shown its importance in increasing tolerance to biotic and abiotic stress of crop plants. This paper presents the assessment of the silicon translocation in maize plants grown under specific field conditions, near Gataia town, on uniform background fertilization with macroelements (N, P, and K) and the application of three different doses of exogenous silicon as an aqueous solution: 3, 4, 5 si 6 l/ha by spraying the leaves at two developmental stages: 4-6 leaves and 8-10 leaves respectively, corresponding to14-16 and 19 BBCH code. The silicon content of plants (roots, stem and leaves samples - 10 plants from each variant) was performed at 10 and 20 days after exogenous treatment. The determination of Si in plants was achieved by the classic gravimetric method, of the insoluble and thermally stable form of SiO2. The highest accumulation of SiO2 was determined in roots with 6 l/ha exogenous silicon treatment (ESi), in plant stems treated with 4l/ha ESi and in leaves treated with 3l/ha ESi. This demonstrates that high doses of ESi applied will stimulate accumulation in maize root, and the medium and small doses are accumulated in above ground vegetative part of maize plant.

exogenous silicone, maize productivity, SiO2

biology

Presentation: poster