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Vliv deficitní výživy na růst, vývoj a aktivitu kořenového systému kukuřice seté (Zea mays, L.)
Nádvorníková, Marie
The aim of hydroponic cultivation experiment was the determination of the influence of deficient nutrition on the maize (Zea Mays, L.) growth and root system. The model crop was maize hybrid SY ONDINA. The experiment had six deficient variants (P, N, K, Ca, S, Mg) and variant with all nutritions (control variant). During the experiment were taking plants at an interval of 7 days. The dry matter of root and stem was weighed, the content of nutrition and the size of root system were set. The antagonism and synergism between elements were showed. The bigger reduction of root dry mass had plants with potassium and calcium deficiency. The plants with deficient (expecially deficiency of calcium, nitrogen, magnesium and potassium) had very restricted root structure. The lowest value of root electrical capacitancy had plants with potassium and calcium deficiency.
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