Phytostimulation and Synergistic Antipathogenic Effect of Tagetes erecta Extract in Presence of Rhizobacteria

In anticipation of the food crisis, developing innovative products and technologies to increase crop yield quality is a necessity. this context, aim study was develop phytostimulant based on Tagetes erecta extract rhizobacteria antifungal activity against phytopathogenic fungi. The hydroalcoholic from T. flowers characterized by UV-Vis spectrophotometric assays (total phenolic content, total flavonoids reducing sugar content), qualitatively ATR-FTIR quantitatively for individual compounds UHPLC-HESI analysis. antioxidant evaluated phytostimulation capacity done radish cucumber. variants concentration that stimulated (Bacillus sp.) proliferation were selected evaluating influence microbial viability in liquid medium. fungal pathogens (Monilinia laxa, Fusarium graminearum, Aspergillus niger) determined mycelium growth solid media. synergistic effect between optimal levels rhizobacteria-containing showed significant decrease development. Thus, PGPR strains treated with could be applied as biocontrol agents plant stimulate vegetable seedlings.