Moderately Reducing Nitrogen Application Ameliorates Salt-Induced Growth and Physiological Damage on Forage Bermudagrass.

ABSTRACT: Nitrogen (N) application is one of the most effective methods to alleviate salt-induced damage on plants. Forage bermudagrass has higher utilization potential on saline soil, but whether its N requirement changed under high salt stress has not been studied. Through examining plant growth-related traits, salt-stress-responsive physiological traits, photosynthesis, N metabolism, and forage quality supplied with different N concentrations under high salt stress (200 mM NaCl), we noticed that the optimum N requirement of forage bermudagrass reduced. When supplied with 10 mM N under higher salt stress, plants had a similar biomass, turf color, and chlorophyll content with plants supplied with 15 mM N, accompanied by a lower firing rate and Na⁺ content of leaves. The N content, crude

SUBMITTER: Shao A 

PROVIDER: S-EPMC9100817 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature