“…Rich.) R. Webster) seeds with SNP (100 µM) induced protective action against water restriction and salinity [ 52 ]. In some reports, authors confirmed the positive action of NO after using SNP solution by applying a NO scavenger (2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3 oxide; cPTIO), an inhibitor of NO synthase (L-N G -nitro arginine methyl ester), an inhibitor of NR (sodium tungstate), or methylene blue, which is regarded as a blocker of NO action [ 42 , 51 , 53 ].…”