Effect of Priming with Indole-Butyric Acid (IBA) on Germination and Growth of Wheat under Saline Conditions

In order to study the effect of priming with Indole-butyric acid (IBA) on germination and growth of wheat under saline conditions, an experiment was conducted as factorial with completely randomized design with three replications. The factors of the experiment are different levels of Indole-butyric acid concentration (0, 10 and 20mgL-1) and salinity (0, 10, 20, 30 and 40dsm-1). The results showed that increasing salinity would decrease the components of germination including germination percentage, germination rate, root and shoot length and wet weight of seedling. However, priming with Indole-butyric acid significantly decreased the salinity effect. The maximum root length is obtained for 10 mgL-1 IBA treatment. It is generally concluded that priming with IBA would improve germination components and increase the resistance of wheat in germination stage under saline conditions.