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The current status of changing climate has become a significant threat to the global production of horticultural crops. Phytohormones play a crucial role in providing a sophisticated mechanism to circumvent stress at different morphological, physiological, biochemical, and molecular levels. Phytohormone mediates the abiotic stress-responsive signalling pathway and modulates other cell wall repair mechanisms, pH regulations, root hair formation, ionic homeostasis, chlorophyll content, synthesis, and leaf morphology. Auxin, cytokinin, ethylene, strigolactones, brassinosteroid, salicylic acid, abscisic acid, jasmonic acid, and other phytohormones have also had other phytohormones recently been discovered to play a vital role in the production of abiotic stress-tolerant crops. Moreover, recently discovered phytohormone-like plant growth regulators such as polyamines, sugars, neurotransmitters, and strigolactones are …