خاکشور مقدم، ز.، لاهوتی، م. و گنجعلی، ع. (1389). بررسی اثرات تنش خشکی ناشی از پلیاتیلن گلیکول بر جوانهزنی و خصوصیات مورفولوژی گیاه شوید. نشریه علوم باغبانی، 25(2): 185-193.
Agraval, R. 2005. Seed technology. Oxford and IBH Publishing Co, 829 pp.(Book)
Amiri, B., Rezvani moghadam, P., Ehiaei, H., Fallahi, J, and aghhavani Shajari, M. 2013. Effect of osmotic and salinity stress on germination and growth indicators of two medicinal plants Coneflower (Echinacea purpurea) and Artichok (Cynara scoolymus). Journal of environmental stresses in agricultural science, 3(2): 165-176. (In Persian)(Journal)
Asghari, F., Dreajhshani, Z. And Delkani, M. 2010. . Effect of water stress derived of PEG on germination properties of Cone Flower Echinacea purpurea (L.). Proceeding of Articels 6th Iranian Congress of Horticultural Sciences. 13-16 July, Gilan.(In Persian)(Journal)
Feizi, H., Amirmoradi, SH., Abdollahi, F. & Jahedi pour, S. 2013. Comparative Effects of Nanosized and Bulk Titanium Dioxide Concentrations on Medicinal Plant Salvia officinalis L.Annual Review & Research in Biology, 3(4): 814-824. (In Persian)(Journal)
Feizi, H., Kamali, M., Jafari, L. & Rezvani Moghaddam, P. 2013. Phytotoxicity and stimulatory impacts of nanosized and bulk titanium dioxide on fennel (Foeniculum vulgare Mill). Chemosphere, 91: 506–511. (Journal)
Hayouni, E.A., Chraief, I., Abedrabba, M., Bouix, M., Leveau, J., Mohammed, H. and Hamdi, M. 2008. Tunisian Salvia officinalis L. and Schinus molle L. essential oils: Their chemical compositions and their preservative effects against Salmonella inoculated in minced beef meat. International Journal of Food Microbiology, 125: 242-251.(Journal)
Hobbs, C. R. 1994. Echinaceae, A literature review. Herbalgram, 30: 33-49. (Journal)
Hosseini, H. and Rezvani Moghadam, P. (2006). Effect of water and salinity stress in seed germination on Isabgol (Plantago ovata). Iranian Journal of Field Crops Research, 4 (1): 15-22. (In Persian) (Journal)
Jaberzadeh, A., Moaveni, P., Tohudi Moghadam, H., and Moradi, A. 2013. Evaluate the effect of TiO2 nanoparticels spray on some agricultural indicators of Wheat under drought stress. Journal of Crop Ecophysiology.(In Persian)(Journal)
Khakeshvar Moghadam, Z., Lahuti, M. and Ganjali, A. 2010. Evaluate the effect of drought stress with PEG on germination and moephologic indicators of Anethum graveolens. Journal of Horticulture Science, 25 (2): 185-193. (In Persian)(Journal)
Khote, LR., Sankaran, S., Maja, J., Ehsani, R. and Schuster, EW. 2012. Applications of nanomaterials in agricultural production and crop protection: A review. Crop Protection, 35: 64-70. (Journal)
Li, Q. F., Ma, C. C., and Shang, Q. L. 2007. Effects of silicon on photosynthesis and antioxidative enzymes of maize under drought stress. Ying Yong Sheng Tai Xue Bao, 18: 531-536. (Journal)
Maguire, I. D. 1982. Speed of germination – aid in selection and evaluation for seedling emergence and vigor. Crop Science. 22: 176–177. (Journal)
Malik, C. P., Gupta, K. and Sharma, S. 1986. Effect of water stress on germination and seedling metabolism of gram (Cicer arietinum L). Acta Agronemica Hungarica, 35: 11-16. (Journal)
Masoumi Zavariyan, A. And Asghari, M. 2014. The effect of drought stress on germination indicators and Enzyme Peroxidase activity, the seed of Echinacea purpurea (L.) Moench Medicinal Plant. 2014. The 1st National Conference on Stable Agriculture and Natural Resources. 26 December, Mashhad.(In Persian)(Journal)
Melchart, D. and Linde, K. 1994. Immunomodulation with echinacea, a systematic review of controlled clinical trial. Phytomedicine, 1: 254-255. (Journal)
Michel, B.E., and Kaufman, M.R. 1973. The osmotic potential of polyethyleneglycol 6000. Plant Physiology, 51: 914-916. (Journal)
Nair, R., Varghese, SH., Nair, BG., Maekawa, T., Yoshida, Y. and Sakthi Kumar, D. 2010. Nanoparticulate material delivery to plants. Plant Science, 179:154–163. (Journal)
Oussalah, M., Caillet, S., Saucier, L. and Lacroix, M. 2007. Inhibitory effects of selected plant essential oils on the growth of four pathogenic bacteria: E. coli O157: H7, Salmonella Typhimurium, Staphylococcus aureus and Listeria monocytogenes. Food Control, 18: 414-420. (Journal)
Sandra, C. M. 2004. Echinacea; The genus Echinacea. Medicinal and Aromatic Plants-Industrial Profiles, 39- 271. (Journal)
Sun, L.Z., Currier.,N. L. and Miller, S.C. 1999. The American coneflower: a prophylactic role involving non specific immunity. Journal of Alternative and Complementary Medicine, 5: 437-446.(Journal)
Vashisth, A. and Nagarajan, S. 2010. Effect on germination and early growth characteristics in sunflower (Helianthus annuus) seeds exposed to static magnetic field. Journal Plant Physiology. 167: 149–156. (Journal)
Voigt, E.L., Almeida, T.D., Chagas, R.M., Ponte, L.F.A., Viégas, R.A. and Silveira, J.A.G. (2009). Source–sink regulation of cotyledonary reserve mobilization during cashew (Anacardium occidentale) seedling establishment under NaCl salinity. Journal of Plant Physiology, 166: 80-89. (Journal)
Yang, L. and Watts, D.J. 2005. Particle surface characteristics may play an important role in phytotoxicity of alumina nanoparticles. Toxicology Letters, 158:122–132. (Journal)
Zhang, L., Hong, F., Lu, S., and Liu, C. 2005. Effect of nano-Tio2 on strength of naturally aged seeds and growth of Spinach. Biological Trace Element Research, 105: 83-91. (Journal)