The influence of zinc and pH environment changes on adaptation reactions of Typha angustifolia L. | Účinky zinku a zmien pH prostredia na adaptačné reakcie pálky úzkolistej (Typha angustifolia L.)
2011
Prčík, M., Slovenská poľnohospodárska univerzita v Nitre (Slovak Republic). Fakulta európskych štúdií a regionálneho rozvoja, Katedra udržateľného rozvoja
Wetland variety Typha angustifolia L. is characterized by the ability to grow actively in specific conditions, to create great quantity of biomass and by the ability to maximize the use of all available nutriment occurring in the environment. Biomass of Typha angustifolia L. serves as so called biological accumulator of mineral elements which were originally concentrated in water environment and thereafter were accumulated by plants. Typha angustifolia L. sensitively responds on increased concentrations of heavy metals. The article presents adaptation reactions of Typha angustifolia L. on presence of a heavy metal - zinc. The growth and creation of biomass were influenced by the zinc presence in experimented plants. The decreased speed of plant mass growth by gradually increased concentration of zinc in environment was observed, whereby the maximal inhibition occurred by 80-fold higher zinc concentration compared to control variant (by 89.45%). Gradually increasing concentration of zinc in environment inhibits the creation of biomass and changed the basic hierarchy in its reallocation. The zinc content 8 g.ľ1 (variant 5) influenced the plants activity and caused the sequential changes in form of the leaf, its defects and necrosis. The plants adapted to the conditions of graded zinc concentration by increased creation of subsoils and by increased creation of shortened and swollen roots.
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