Effects of Seed Priming on Components Germination the Sweet Corn (Zea mays Cv. Basin) at Different Levels of Salinity

Priming is one of the seed enhancement methods that might be resulted in increased seed performance (germination and emergence) under stress conditions, such as salinity, temperature and drought stress. In order to study the effect of seed priming on seed germination index and some of physiological properties of super sweet corn in different levels of salinity, an experiment conducted with two factors that arranged as factorial based on completely randomize design with three replications. Factors were consisted five levels of seed priming solutions (2% potassium chloride, 3% potassium nitrate, polyethylene glycol (8000) 10%, 1% potassium dehydrogenate phosphate with control) and four NaCl concentration (0, 50, 100,150, mM). Results showed seed priming and salinity had significant effect on germination rate, germination percent and some antioxidants such as catalase and peroxidase. In general, results of this experiment revealed that seed priming improved the seed vigor and increased resistance to salinity stress at germination stage.