The mitigating effect of P. putida against salt stress in canola seedlings and an increase of chlorophyll content were determined by Glick et al. (1997), Hamdia and El-komy (1998), and Jalili et al. (2009). An elevation of chlorophyll content in plants leads to higher photosynthetic rate and starch production, which might be supported the plant growth improvement under unfavorable salinity and drought environment.