摘要：Canola plants, salt tolerant cv. (Okapi) and salt sensitive cv. (Symbol) were grown in greenhouse conditions in presence or absence of different concentrations of NaCl. Inhibition of plant growth and modification of plant morphology are the most sensitive responses of canola plant to salt stress. The ratio of fresh weight to dry weight of plants after stress application of NaCl was strongly increased in comparison to their corresponding control. Electerophoretic analysis of total soluble protein ( SDS-PAGE ) profiles were carried out in order to evaluate the response of canola cultivars to salt stress. SDS-PAGE analysis has revealed that plant grown under NaCl showed induction in the synthesis of few polypeptide in seeds. Increasing of these proteins was greater in tolerant cv. than the sensitive. This differences reflected the biochemical adjustment of the plant to cope with the saline conditions. These results can be translated into efforts aimed to develop salt tolerant cultivars and maximize the use of saline soils.
