Abstract:
The most frequently soils pollution consist the heavy metal ions
contamination, having extremely serious effects both on ecosystems and human
health. In this context, a method for decontamination of soils contained heavy
metal ions is phytoremediation, which consist in the use of plant species in
order to extraction, stabilization and/or neutralization of soil pollutants. For
biomonitoring and establishing the parameters of this method, first, the
phytotoxicity tests are needed. This causes the maximum dose of heavy metal
ions which do not cause a negative effect on plants, even from germination
process. Phytotoxicity tests measure the decrease or absence of germination
and root length, in just a few days of exposure seeds to contaminated soil, in
comparison with unpolluted soil. This study aimed to determine the Cd2+
toxicity in seeds germination and root length of bioaccumulating plants such as
white mustard (Sinapis alba), rape (Brassica juncea) and triticale (Triticosecale
rimpau), at different Cd2+ concentrations.
