###### Abstract  
Strawberry, the most significant berry crop, is characterized as a salt-sensitive plant. The present study aimed to examine ways to alleviate salinity symptoms (34 mM of NaCl in irrigation water) in strawberry plants. For this purpose, the osmolyte glycine betaine was foliarly applied, a mixture of bentonite-zeolite was added to the substrate, and a microbial product based on _Basilys amyliquefaciens_ as a soil drench were tested in terms of plant growth and nutrient status, yield, fruit physiological and organoleptic characteristics, as well as phytochemical properties (phenolic compounds, carbohydrates, organic acids, anthocyanins, and antioxidant capacity), and soil physicochemical properties. Salinity severely reduced plant growth and yield, while the effects on fruit quality were also distinct. Treatments alleviated to some extent these negative effects. Plant nutrient content was not severely affected by product application, and neither were most of the soil physicochemical properties. Among the products applied, the mixture of bentonite plus zeolite and glycine betaine proved to be more efficient in ameliorating toxicity symptoms, as both treatments preserved plant hydric status and plant growth, while glycine betaine resulted in an almost 30% higher yield than the treatment with saline water. Fraqaria x ananassa; fruit quality; mineral nutrients; phytochemicals; salt stress; hydric status 2021 2021 2021 22 September 2021 22  
and may suffer significant damages when cultivated in salt-affected soils. In this sense, it is necessary to implement new, up-to-date cultural practices as an approach to ameliorate the negative impacts of salinity stress on plants. Several studies have indicated the positive effects of glycine betaine (GB) on the growth and survival of various plants growing under saline conditions [5; 6; 7], as well as zeolite [8], and _Bacillus amyloidatefaciens_[9; 10]. GB, as an osmolyte, may ameliorate osmotic stress induced by salinity, by improving the water status of the cells, preserving thus membrane function and water content [1]. Furthermore, exogenous GB application enhances photosynthesis [11; 12; 13; 14], improves nutrient homeostasis [15], and induces the concentration of other osmoprotectants such as proline [16]. Moreover, it has been reported that GB application under saline conditions can modify Na\({}^{+}\) and K\({}^{+}\) transport and accumulation, decreasing thus the Na\({}^{+}\)/K\({}^{+}\) ratio [7]. Zeolites are crystalline, hydrated aluminosilicates of alkali and earth metals with a porous structure that can retain a variety of cations, such as K\({}^{+}\), Na\({}^{+}\), Ca\({}^{2+}\), Mg\({}^{2+}\) and others [17]. Due to their unique features, such as being abundant and inexpensive, as well as their high cation exchange capacity (200-300 meq per 100 g), along with the selective absorption and structure stability [18], zeolites serve as soil amendments, against water and salinity stress [8; 18; 19]. Furthermore, zeolite improves soil physicochemical and biological properties, increases soil pH and exchangeable potassium [20]; mitigates soil erosion caused by surface runoff, reducing thus soil loss; and improves degraded pastures [21]. Bentonite, on the other hand, has not been tested so extensively, but reports are presenting beneficial effects on plant growth under salinity stress [22]. The use of bacterial inoculations to mitigate the negative impact of salinity in plant growth and development is an alternative emerging technology to improve the abiotic stress tolerance of plants [23; 24; 25]. Several reports have shown that plant growth-promoting rhizobacteria (PGPR) that colonize the rhizosphere of plants, are beneficial microorganisms, capable of increasing the stress tolerance of host plants against both biotic and abiotic factors [26; 27].