The effect of nano silver on elements of saffron corms under salinity coundition

Saffron (Crocus sativus L.) is amember of Iridaceae family, that especially its stigma and corm are important in medicine and food. Today, silver nanoparticles with antimicrobial and fungal properties are used in many fields and also effects on ethylene receptors in plants. In Iran, due to increase saline soils, study on reducing the effects of salinity stress by using nanosilver in plants can be a good perspective to control the effects of salinity stress on plants. For this purpose, an experiment was carried out using four treatments: nano silver (40 ppm), salinity (100 mM NaCl), nano silver (40 ppm) whit salinity (100 mM NaCl), control without any treatment and primary corm, with two irrigations and soaking methods were used. The amount of phosphorous, sodium and potassium ions of treated corms were investigated. Results showed that phosphorous ion in compared with control and primary corm increased in all stresses, which was significant at level (P≤0.05).The concentration of sodium in irrigations methods and potassium in soaking methods increased in salt stress (0.77 mg / gDW)(9.9 mg / gDW), but using salinity stress with nano silver (0.67 mg / gDW)(7.61 mg / gDW) showed a significant decrease in the levels of two mentioned ions (P≤0.05) compared with control(0.73 mg / gDW)(8.08 mg / gDW). In this study, the use of nanosilver particles with salt stress showed that the effects of salinity have been influenced and increased phosphorous ion and modified amount of sodium and potassium.