عنوان مقاله [English]
Germination stage is an important stage of plant growth stage that often is affected by environmental stress including water and salinity stresses including drought and salinity. In order to study germination characteristics of Scrophularia striatain water and salinity stress conditions at different temperatures an experiment was conducted. Temperatures regimes included 5, 10, 15, 20, 25, 30 and 45°C. For each temperature the treatment, for salinity and water stress was seven potentials (zero, -2, -4, -6, -8, -10 and -12 bar) of NaCl and seven potentials (zero, -2, -4, -6, -8, -10 and -12 bar) of PEG. Results showed that increasing water and salinity stress decreased significantly germination rate, germination percentage, plumule and radicle length. The minimum decrease of germination characteristics in stress was observed at 25°C. Results showed that optimum temperature for this plant is 28.69°C.