Department of Horticultural Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Abstract: (30 Views)
Cool-season turfgrasses are widely utilized in transitional urban green spaces and sports landscapes, where they often face a variety of abiotic stresses, including drought, salinity, heat, cold, and shade. Over the last thirty years, numerous studies have explored the morpho-physiological and biochemical responses of various turfgrass species to these environmental challenges, aiming to identify stress-specific resilient cultivars and enhance grass management practices. Cool-season turfgrasses exhibit a range of responses at cellular and whole-organism levels under stress conditions. This article reviews the existing mechanisms of abiotic stress tolerance in these turfgrasses, focusing on the integraion of findings from diverse studies to offer a comprehensive overview of turfgrass adaptation strategies. Key stress indicators such as proline accumulation, antioxidant enzyme activity, chlorophyll content, and water-use efficiency are discussed concerning specific stress types. Furthermore, emerging evidence suggests that combined stress conditions can occasionally yield unexpected synergistic or antagonistic effects, affecting plant responses differently than single stress exposures. Understanding these intricate responses is crucial for breeding climate-resilient cultivars, especially given the anatomical limitations of turfgrass species and the necessity for genetic compatibility in gene transfer. This review emphasizes the significance of species-specific knowledge in turfgrass science and lays the groundwork for future research aimed at sustainable grass management under climate change pressures.