Optimum amount of heavy metals in soil is essential for proper growth of plants. However, presence of these metals in higher concentration is detrimental and harmful for plant kingdom. Accumulation of heavy metals in soil can inhibit the growth as well as the ability of absorbance of nutrient from soils in several plants. Toxic tolerance and response towards these heavy metals varies among plants species and this variation is directly related to genetic constitution of plant genome. The present study is a comparative account on the effect of ZnSO., and CuSO, on Vigna radiata, Triticum aestivam and Cicer arietinum plants exposed to heavy metals. The plants were treated with different concentration of ZnSO CuSo, and combined ZnSO, and CuSO, Different concentrations of Zn and Cu independently showed significant effect on different parts of plants. A significant synergetic effect was also observed in treated groups when compared with control plants. This study contributes valuable informations on effect of heavy metals present in excess amount which lead to the changes in genotypic and the phenotypic characteristics of plants.
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