Effects of different concentrations of heavy metals application on germination indices of radish

Article Type:
Research/Original Article (بدون رتبه معتبر)

Heavy metals of biosphere rise since the beginning of industrial revolution and the toxicity of heavy metals cause to impair in the process of germination and growth of plants. In this study the effects of different concentrations of Pb(NO3)2 (0, 50, 100 and 150 ppm), different concentrations of Cd(NO3)2 (0, 50, 100 and 150 mg/kg), different concentrations of Ni(NO3)2 (0, 50, 100 and 150 ppm)on germination were investigated in the independent experiments according to a completely randomized design with four replications. The results of ANOVA in three experiment indicated a significant difference between different treatments at a level of 1% for most traits.The result indicated that with the increase in concentrations of Pb, radicle and plumule length, radicle and plumule dry and fresh weight, vigor index showed a downward trend.Increasing the concentration of cadmium impairs the growth of radicle and plumule length, radicle and plumule dry and fresh weight, vigor index of radish. Also, with increasing the concentration of Ni(NO3)2 the most traits were decreased. In general, the results of this study showed that although Cd, Ni and Pb may allow germination, they impaired seed germination indices of radish.

Journal of Seed Research, Volume:12 Issue: 43, 2023
14 to 23
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