Effect of Infusion Salinity Stress with NaCl on Seed Germination Traits of Agropyron pectiniforme Römer et J.A. Schultes and Agropyron trichophorum (Link) K. Richter

Salinity stress is considered as one of the major factors that reduce plant growth in many regions in the world. Agropyron pectiniforme and Agropyron trichophorum species are perennial grasses species that product valuable forage and grazing material in pasture and rangelands of Iran. The aim of this study was determining effect of salinity stress with NaCl on seed germination traits of Ag. pectiniforme and Ag. trichophorum species. The experimental design was a two factorial (species treatments and salinity levels or salt stress 0, 50, 150, 250 mM NaCl) arranged in a completely randomized design with three replicates and 50 seeds per replicate. The data were statistically analysed by the MSTAT-C, computer program. The difference between the means was compared using Duncan test (P