THE CONTENT OF MACRO- AND MICROELEMENTS IN THE SHOOTS OF GLYCERIA MAXIMA OF THE S?UPIA RIVER

摘要

The study shows the content of macro- and microelements in the leaves and rhizomesof Glyceria maxima of the S?upia River in S?upsk. The content of macro- and microelementsin G. maxima was analyzed for each component separately and in an integratedway, and comparing the demand for nutritions. The largest quantity of nitrogen,phosphorus, potassium, magnesium and calcium were found in the leaves, meanwhilezinc, iron, manganese, nickel and copper in the G. maxima rhizomes. The amount ofZn and Cu, in all of the tested positions, within the range of the limit for the plants,and the concentrations of Ni and Mn exceed physiological needs. The U Mann Whitneytest showed a number of statistically significant differences in the concentrationof the analyzed elements in leaves – rhizomes, leaves – bottom sediment and rhizome- bottom sediment relation. The relations between designated heavy metals formed afollowing series: Mn>Fe>Zn>Ni>Cu in leaves and Fe>Mn>Zn>Ni>Cu in rhizomes.The G. maxima shoots accumulated 985.8 do 1441.4 mmolc·kg-1 in all the analyzedcomponents, and the lower value of the sum of the accumulated macro- and microelementswere found in rhizomes. The sum of ion comospition of the macronutrients inthe leaves and rhizomes was similar. The content of nitrogen was 51.7–53.7% of thisamount, 5.8–8.6% phosphorus, potassium 22.8 – 26.6%, 4.9-5.8% of magnesium, calcium,8.2–11.9%, and trace elements were 0.58% in total, in the case of leaves and8.70% in the rhizomes