Effect of cadmium on flavonoid content in young barley (Hordeum sativum L.) plants
Lachman, J.(Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Agrobiologie, Potravinovych a Prirodnich Zdroju)E-mail:[email protected] | Dudjak, J. | Miholova, D. | Kolihova, D. | Pivec, V.
The aim of this study was to evaluate the effect of Cd as abiotic stressor on the total flavonoid concentration (F) in roots, shoots and leaf blades of spring barley. The variety Kompakt, grown in a climate-control room for 28 days, was treated with a nutrition solution containing Cd. F was determined spectrophotometrically with sodium nitrite, Cd content was evaluated by atomic absorption spectrometry. Cd caused a statistically significant decrease in F concentrations and a significant increase in Cd concentrations in all parts of the plant. The differences in F between plant organs were significant. The highest decrease in F was found in the roots (from 20.0 to 3.05 g/kg dry matter), a lesser one was observed in the shoots (from 24.2 to 9.33 g/kg dry matter) and leaf blades (from 58.3 to 27.3 g/kg dry matter).
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