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Biofortifikace slunečnice roční (Helianthus annuus L.) selenem
 Vágnerová, Lucie
The diploma thesis is focused on a small-plot year-long experiment, carried out in 2013. The experiment monitored reaction of sunflower's (Helianthus annuus L.) hybrid NK Brio to foliar fertilizing with selenium, applied in the form of sodium selenite (Na2SeO3) during growth stage R1, at rates 50, 100, 150 and 200 g Se.ha-1. Foliar application of selenium at rates 50 - 150 g.ha-1 caused stimulation of weight of a plant biomass and nutrient uptake (esp. N, Mg and Se). Rate of 200 g Se.ha-1 inhibited plants' growth. Sunflower achenes yields were not statistically significantly influenced by foliar application of Se (p0,05). The most significant effect of foliar application of Se was its content in sunflower achenes; the amount of Se increased significantly (p0,05) in a linear relationship (r = 0.9824) to the graded rates.
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