ارزﻳﺎﺑﻲ ﺟﻮاﻧﻪزﻧﻲ و رﺷﺪ ﮔﻴﺎﻫﭽﻪﻫﺎی دو رﻗﻢ ﮔﻨﺪم ﺗﺤﺖ ﺗﻨﺶ ﺷﻮری و ﭘﻴﺶﺗﻴﻤﺎر ﻧﺎﻧﻮﻧﻘﺮه

Abstract
In order to study the effect of seed priming on germination and growth of seedlings of two wheat cultivars with nanosilver under response to salinity stress, an experiment was conducted in factorial arrangement based of completely randomized design with three replications. The factors consist of two wheat cultivars (Chamran and Khazar), nanosilver (priming and control) and six salinity levels (0, 50, 100, 150, 200 and 250 mM of Nacl). According to the results of variance analysis and significant interaction effects between three factors, both the Khazar (moderate tolerance to salinity) and Chamran (sensitive to salinity) cultivars showed a different response to nanosilver priming. In Chamran cultivar, nanosilver priming at lower salinity levels (50 and 100 mM), significantly decreased germination rate and its rate index compared to control; while in Khazar cultivar, the decline in these traits was not significant. On the other hand, seedling growth rate in Khazar showed a better respond to nanosilver priming than Chamran, but with increasing the salinity level to 250 mM the seedling growth rate of Khazar was greater than Chamran. Overall, it was observed that seed priming with nanosilver at high levels of salinity did not have the desired effect on both cultivars where it caused more reduction in the evaluated traits.