*3.1. Total Phenolics and Flavonoids of the Applied Cyanobacteria*

The total phenolics and flavonoids of each cyanobacteria species were evaluated at the end of the stationary phase of growth. It can be shown in (Figure 1) that the total phenolics and flavonoids vary with species. The highest total phenolic content was determined in *A. platensis* at 35.39 ± 0.19 mg GAE/g, followed by *A. oryzae* at 32.71 ± 19 mg GAE/g. In terms of flavonoids, *A. oryzae* had the highest content (5.58 ± 0.29 mg QCE/g), followed by *A. platensis* (5.34 ± 0.33 mg QCE/g). On the other hand, *D. muscorum* recorded the lowest phenolics and flavonoid content (30.47 ± 0.31 mg GAE/g and 4.73 ± 0.16 mg QCE/g, respectively).

**Figure 1.** Variation in the total phenolics and flavonoid content of different applied cyanobacteria in the soil application and foliar spraying. Data represent mean ± SD, n = 3. (a–c Letters revered to significant in statically analysis).
