ﻣﻄﺎﻟﻌﻪ اﺛﺮ ﺗﻨﺶ ﺷﻮری ﺑﺮ ﺷﺎﺧﺺﻫﺎی رﺷﺪ ﮔﻴﺎﻫﭽﻪ و ﺑﻨﻴﻪ ﺑﺬر ﺑﺬور ﮔﻴﺎه داروﻳﻲ ﺑﺎﻟﻨﮕﻮ(Lallemantia royleana L) ﺑﺮداﺷﺖ ﺷﺪه از ﭘﺎﻳﻪﻫﺎی ﻣﺎدری ﺗﻴﻤﺎر ﺷﺪه ﺑﺎ ﻧﺎﻧﻮﻛﻮد آﻫﻦ و ﺗﻨﺶ خشکی

The purpose of this study was to investigate the effect of salinity stress on seedling growth (SG) and seed vigor (SV) indices of Lallemantia royleana seeds harvested from parental plants treated with iron Nano-
fertilizer and drought stress. The experiment has been carried out at Shahed University. First, in 2012, the
parental plants were cultivated and exposed to different combination of treatments including iron Nano-fertilizer (control, incorporation with soil and foliar application) and drought stress (irrigation cut after emergence, flowering and seed production stages). At harvesting stage, seeds were collected and evaluated in terms of (SG,SVIs) under five salinity stress levels (0, 3, 6, 9 and 12 ds.m-1). Results showed that the observed variation due to treatment combinations applied on parental lines was significant for all studied traits. The SG,SVIs averages were significantly decreased concurrent with rise in the salinity levels. Assessment of interaction effects showed that the highest SG,SVIs values respectively belonged to seeds obtained from parents fed with foliar iron Nano-fertilizer and treated with irrigation cut at flowering stage and seeds obtained from parents fed with foliar iron Nano-fertilizer and treated with irrigation cut at seed production stage. Results of this study revealed that drought stress at emergence and after flowering stages respectively had greatest impact in reduction of seed vigor index (SVI) and increase of seedling growth index (SGI) of Lallemantia royleana seeds.