). Carbohydrate accumulation in grass crown or rhizomes is important for the regeneration of new shoots and roots ( DaCosta and Huang, 2006 ; Volaire and Gandoin, 1996 ). For re-growth and re-hydration of existing leaves from drought damage, physiological factors
tolerance within fine fescues, and 3) identify physiological parameters that can be used as indicators for heat and drought tolerance in fine fescues. Materials and Methods Plant materials and growth conditions. A total of 26 cultivars of fine fescue were
drought-tolerant cultivars of oil tea, an understanding of the physiological and metabolic responses to drought stress and the mechanism of tolerance is essential. Metabolites are the final products of the cell regulation process, which is not only closely
studies on the physiological and biochemical responses of herbaceous peonies to drought stress have been published. Guo (2009) studied the phenotypic traits and leaf physiological and biochemical characteristics of four herbaceous peony cultivars treated
express various responses to drought stress and develop a wide range of mechanisms from morphological to physiological aspects. For example, the smaller, thicker leaves with thicker cuticles, more cuticular wax, and a higher specific leaf mass in Mexican
., 2014 ). Drought can influence water metabolism in plants and cause significant changes in plant morphology, physiology, and biochemistry ( Torres-Ruiz et al., 2015 ). Therefore, more research into the responses and adaptation mechanisms of crops to
used in the IMW avoid drought but differ in mechanisms. TF avoids drought because it maintains normal physiological function in water-limiting conditions by developing an extensive, deep root system to extract more water from a deeper and greater volume
., 2011 ). Meanwhile, plant carbon balance and subsequent bio-physiological restoration depends on the rates and extent of photosynthesis recovery ( Chen et al., 2015 ; Souza et al., 2004 ). For drought-tolerant species, this defense and adaptation to
these physiological responses to substrate drying among the rootstocks led to the differences in their final growth. Apparently, the impact of drought stress was greatest on R. odorata , regardless of the least water deficit of the substrate. Among the
examined cultivar variations in their overall turf performance in response to irrigation schedule and drought stress ( Baldwin et al., 2006 ; Jiang and Carrow, 2007 ; Lu et al., 2006 ), investigations of physiological responses of bermudagrass to drought