Abstract

In order to evaluate the effect of different seed priming techniques on germination and early growth of two wheat cultivars (Cross Alborz and Sardari) tow experiments carried out at the Razi University Laboratory of Physiology, Faculty of Agriculture and Natural Resources, Kermanshah, Iran. This study was in two separate experiments. The experiments were factorial arranged in a completely randomized design with four replications. The first factor was seed primed for 12, 18, 24 and 30hours, the second was four concentrations of gibberellic acid (50, 100, 150and 200 ppm), PEG-₆₀₀₀ (-0.3 MPa) and the third was two wheat cultivars. Seeds were primed for 12, 18, 24 and 30 hours at temperature 25°C in different solutions. Results showed that for hormonal priming, maximum shoot and root length, shoot and root dry weight and germination rate were observed at GA 50 ppm and 24 h treatmeant in Cross-Alborz and Sardari cultivars. For osmmopriming maximum shoot and root length, shoot and root dry weight and germination rate were abserved at 12 h treatment.

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