| Summary: | We evaluated the effect of foliar application of fertilizer Tecnokel amino Zn on selected quantitative (weight of one corn cob, average length of corn cob, number of grains per row and number of rows per cob) and qualitative (total yield, total carotenoid content, total sugar content) parameters of sweetcorn. The small trail experiment was founded in 2016 in the Botanical Garden of the Slovak University of Agriculture. We observed 7 selected varieties of sweetcorn and two variants: control and with leaf nutrition. 15 plants we revaluated for each variety under both variants. The corn was grown in three repetitions for each variant. Based on the obtained results, we found that both the qualitative and quantitative parameters were mainly dependent on the genotype. Statistically significant was effect of the variety on the total sugar content in maize grains. Influence of foliar nutrition was not confirmed as statistically significant, but Tecnokel amino Zn has a positive impact on several quantitative parameters as weight of one maize ear or average length of corncobs. Content of total carotenoid doesn´t depend on genotype or variant.
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