COMPARATIVE ANALYSIS OF THE EFFECT OF ZINC EXCESS ON THE SHOOT GROWTH OFSINAPIS ALBA AND BRASSICA JUNCEA

The effect of zinc excess on shoot growth white mustard ( Sinapisalba ) andsareptskaya Brassicajuncea was studied. Nowadays, supposed that B.juncea is a hyperaccumulator – accumulating its high concentrations in the aboveground organs. In contrast, S.alba belongs to “excluders” and accumulate mostly roots. It known, both species are able grow zinc-contaminated soils, but too less known about their metal tolerance. data physiological reactions influence contradictory.In laboratory experiment, at concentration 5 (control), 25, 50, 100, 150 200 mg/kg substrate parameters cv. Radugaand Slavanka Our studies showed, depends as well plant species. Thus, 25 50 had stimulating shoots only higher (100-200 mg/kg) led decrease studied parameters. B.juncea, even height leaf area. dependent matter negative observed. We stronger B. juncea compared associated with content part. results demonstrate possibility using varieties phytoremediation contaminated soils.