Vol. 8, Issue 3, Part e (2024)

Abstract: Numerous abiotic stresses interrupt growth and development of plants and two important signals that cause to sever decrease the horticultural and crops yield are the heat and chilling stresses worldwide. Plants have various mechanisms to resist or avoid the stresses; one of these mechanisms is the biosynthesis of organic solutes. In this review, it explains about the effects of chilling (0-15 °C) stress on the horticultural crops that include ornamental and vegetable plants are discussed. The most important organic molecules to regulate water relations in plants are introduced. The organic solutes like proline and glycine that also are called osmo-protectants has been involved in stress tolerance.