Efficacy of Plant Growth Regulators for the Modulation in the Productivity of Strawberries (Fragaria x ananassa Duchesne)

Strawberry (Fragaria) is one of the important cash crops cultivated worldwide, belonging to the family Rosaceae, and is an octaploid species (2n = 8x = 56). It bears nutritive fruits which is an excellent source of vitamins, sugars, fibers, minerals, phenolics, flavonoids, and antioxidants. The growth, flowering, fruiting, and fruit quality of strawberries is highly influenced by climatic conditions so the plant growth regulators can modulate crop productivity and fruit quality. PGRs can also manage the expression of intrinsic genetic capability and control the gene expression during translation and transcription. This review paper examines the optimization of plant growth regulators (PGRs) for high productivity of strawberry crops. It delves into the mechanisms of these regulators, their impact on strawberry plant development, and their potential to enhance yield, fruit quality, and sustainability in strawberry farming practices in temperate, tropical, and subtropical climates. The present review article emphasizes the effect of essential plant growth regulators (Gibberellic acid, Triacontanol, Naphthaleneacetic acid, and growth inhibitors) on strawberries’ vegetative growth, yield, and quality. A comprehensive discussion has also been included on the physiological or molecular mechanism of the action of these PGRs.