Foliar Application of Carnosine and Chitosan Improving Drought Tolerance in Bermudagrass

Drought stress is one of the crucial factors affecting plant growth and development in turfgrass species, especially during summer season. Exogenous regulators are an effective convenient approach to mitigating adverse effects drought on growth. The objectives this study were reveal exogenous carnosine or chitosan turf performance physiological indexes bermudagrass (Cynodon transvaalensis × C. dactylon) response stress. Bermudagrass was foliar sprayed with chitosan, dose-dependent quality observed under Under stress, application either (0.03%) (10 mg L−1) significantly increased quality, chlorophyll content, leaf relative water decreased electrolyte leakage, malonaldehyde, hydrogen peroxide content comparison untreated control bermudagrass. Moreover, treatment enhanced activities both catalase peroxidase, but only activity. results experiment beneficial new would provide helpful insights for management drought-stressed conditions.