3.5 Oil and protein content
The effect of water deficit stress on oil and protein content in inoculated and no-inoculated plants with PGPB has been illustrated in Fig 3. Based on obtained data from NIR, a negative correlation was observed between oil and protein content in all of the treatments (Fig4). Oil content was significantly lower under water stress but the symbiotic association had no significant impact on it. The highest oil content was recorded with 31.94% and 31.28% for control and B1D0 treatment respectively. Adversely, the highest protein content related to B1D2 (27.16%), Also, PGPB treatment had a significant effect on the enhancement of protein content (Fig4).