Alaghmand, Atena, khaghani, shahab, Bihamta, Mohamad Reza, Gomarian, masoud, Ghorbanpour, Mansour (2020). Effect of chitosan and nano-chitosan on agronomic properties and 
omega-3, 6 and 9 fatty acids in some cultivars of Nigella sativa L. under drought stresscondition. *Eco-phytochemical Journal of Medicinal Plants*, 7(4), 83-96.