Effects of priming on seed germination and germination

Four osmotica (water, hydrochloric acid (HCl 0.5 N), (HCl 0.1 N), sodium chloride 1.5 N and polyethylene glycol-6000 (PEG 6000) were used for priming of four varieties of sugar beet (Beta vulgaris) namely KWS, Universe, Afshari and Orbise. The type of experiment was Factorial on the basis of completely randomized design with three replications. Fifthy seeds were washed by distilled water, HCl, PEG 6000 and NaCl and then each of the above treatments were applied for two hours. The most promising treatments in terms of the rate and percentage of germination were water and HCl. Radicle and coleoptil lengths were shorter in NaCl and PEG is comparison with HCl and water. Varieties of KWS, Universe and Orbice had longer shoots that shows the restage of them was more than other varieties and the treatment of HCl increased the percentage and rate of germination.