Effects of seed priming by mannitol and zinc sulfate on biochemical parameters and seed germination of chickpea

This study was done to investigate the effect of different levels of zinc and mannitol on germination indices and biochemical activity of pea as factorial design with three replications in plant physiology laboratory of Islamic Azad University of Saveh in 2013. Factors were applied on fallowing: the first factor consisted of four levels of mannitol (as a control), 4%, 6% and 8% and the second factor was zinc at levels of 0, 25, 50 and 75 micro mole. Characteristics studied in this research includes activity level of the alpha-amylase enzyme, peroxides and seed protein. The results showed that the increase of zinc concentration in the germination stage increases the activity of peroxides enzyme. Increase of mannitol concentration in the seed preparation stage reduced alfa amylase enzymes.