Efficacy of N<sub>2</sub>O<sub>2</sub> donor schiff bases and their Zn<sup>2+</sup> complexes on various morphological and biochemical parameters of <i>Cicer arietinum</i> L.

<p>Schiff-base polydentate ligands types of salen and salophen can form stable complexes with Zn<sup>2+</sup> and these metal complexes can act as a source of zinc (Zn) to plant's body if they are used as micronutrient supplements. Inspired by these facts, four different Schiff-base ligands and their Zn<sup>2+</sup> complexes were first synthesized and then characterized by different analytical and spectroscopic techniques. To investigate their effects local chickpea seeds were treated with each ligands and complexes and different morphological and biochemical parameters were monitored. Among all the complexes and ligands it was found that the C4 complex, that is, [N,N'-(o-phenylene)bis-(3-methoxysalicylidenediamine)] monohydrate showed the maximum efficacy when treated as a micronutrient supplement for <i>Cicer arietinum L.</i> So that these complexes especially the C4 can act as an potential source of Zn.</p>