Biostimulants Promote Plant Development, Crop Productivity, and Fruit Quality of Protected Strawberries

Berries such as strawberries are recognized a significant constituent of healthy human diets owing to their bioactive secondary metabolites. To improve crop sustainability, yield and berry quality, alternative production systems should be proposed organic farming the use biostimulants. Thus, we have compared within complete randomized block design seven biostimulant treatments: 1-control, 2-seaweed extract, 3-Trichoderma, 4-mycorrhiza, 5-mixture three bacteria, 6-combination mycorrhiza + 7-citric acid. Strawberry plants were grown in conventional high tunnel (CH), greenhouse (CG) (OG). Our results showed that biostimulants did not impact soil microbial activity (FDA) when with control. Leaf chlorophyll content photosynthetic leaf performance affected by any studied Bacteria, citric acid, combination bacteria increased number flowering stalks control CH, while crown diameter all fresh dry shoot plant biomass. Citric acid Ca CG, N CH. Studied productivity treatment had highest CG. The anthocyanins whereas Trichoderma (OG) Brix, total polyphenols, anthocyanin contents berries