Nitric oxide (NO) is a bioactive molecule, which in plants was found to function as prooxidant as well as antioxidant. In the present study,
we found that NO donor sodium nitroprusside (SNP) stimulates seed germination and root growth of lupin (Lupinus luteus L. cv. Ventus). Seed
germination is promoted at concentrations between 0.1 and 800 µM SNP in a dose-dependent manner. The stimulation was most pronounced
after 18 and 24 h and ceased after 48 h of imbibition.