3.3 Determination of the antioxidant and total phenolic content
Based on the results attained from the DPPH method, the increase of water stress coincided with the increase of free radical scavenging potential. The highest of antioxidant potential was observed in B1D2 with a 2.4 fold increase in comparison to control. The results of Table 4 have demonstrated that symbiosis with PGPB had a relatively small effect on the increase of the antioxidant potential of Camelina at the different levels of water stress. As illustrated in Table 4 TPC was arranged from 10.46 to 13.79 for non-inoculated plants and 10.50 to 14.34mg/g DW for inoculated plants. It indicated that water deficit significantly increased TPC by about 17. 5, 31.83%, in B0D1 and B0D2 respectively in addition 34.22 and 37.09 in B1D1 and B1D2 respectively