Can copper and zinc in different chemical forms improve iron deficient in phaseolus plant

الملخص EN

This study aims to compare between the effects of different chemical forms of copper and zinc in ionic form (CuSO4), (Zn SO4) or in chelated form (Cu (II) HEDTA and Zn (II) HEDTA], whereas, HEDTA is N-(hydroxyethyl) ethylenediamine triacetic acid, applied at micromolar concentrations of Phaseolus Vulgaris (Nebraska)plants grown hydroponically under conditions of iron deficiency (- Fe) .

Two plant variants (– Fe + 2 µM Cu2+) and (– Fe+ 20 µM Zn2+) were examined.

The results showed the greening of plants in new leaves, which confirmed the results of chlorophyll after treatment with diamine triacetic acid (HEDT).

The results also showed a change in the reduction activity of the plasma membrane of the root system after treatment with ionic or chelated copper in plants growing under conditions (iron - and (+ iron)), with an increase in root PMRA with an increase in the enzymatic activity of both Fe-Chelate Reductase Activity, Regard to the increase of cell compounds, presence of 20 μM of Zn developed the action of the protein superoxide dismutase and peroxidase activities.