Promoting Strawberry (Fragaria × ananassa) Stress Resistance, Growth, and Yield Using Native Bacterial Biostimulants

Strawberry production is challenged by several abiotic and biotic stresses, such as drought, soil salinity, the angular leaf spot (ALS) disease caused Xanthomonas fragariae. In recent decades, development of commercial products containing combinations different Plant-Growth-Promoting (PGP) microorganisms has been one main focuses agricultural research. However, their results are often erratic depending on crop species, environmental conditions, competition among strains or indigenous plant microbiota. The use beneficial selected from crop-specific microbiota may help overcome this limitation, promoting utilization for sustainable agriculture. culturable bacteriota strawberry plants was screened to identify PGP activities in vitro. Bacterial isolates were tested vivo both optimal stress (X. fragariae infection salinity) allowing selection Pseudomonas fluorescens, Stenotrophomonas rhizophila, Agrobacterium rubi whose application showed a significant increase growth fruit (up seven-fold), even under ability control ALS over 50%. Potential synergistic effects coordinated inoculation. quality not promoted, except weight size, coordinate inoculation comparison m23 m27 single-strain treatment.