As shown in Table 2, in plant growth promotion analysis, it was observed that the dry matter content of the mature
B. campestris seeds did not change by the application of
both strains (either alone or combined) in comparison to
untreated plants. However, the expression analysis of dry
matter of 100 seeds showed a significant increase (particularly in seed treatment followed by soil drench; P 0.05)
in dry matter in comparison with untreated plants. The
content of lipids in the seeds increased significantly (mg/
100 seeds; P 0.05) with the application of strains as
combined seed treatment and soil drench as well as foliar
spray in comparison to untreated plants. Interestingly, the
Bacillus SE isolate was more effective in plant growth
promotion than Pseudomonas KA19.