Effect of storage duration on some germination and vigor indicators of three Wheat cultivars seed in the north of Khuzestan province weather conditions

Due to study the effect of ascorbate foliar application on photosynthetic pigments, phenols and flavonoids of purslane under salinity stress conditions, an experiment was carried out in 2016 at Islamic Azad University, Yadgar-e-Imam Khomeini (RAH) Shahre Rey Branch and Pakdasht city, as factorial design based on Completely Randomized design with 4 replications, in which salinity stress in 3 levels (0, 70, 140 and 210 mM) and ascorbate foliar application in three levels (0, 10 and 20 mM) were considered. The results showed that except for the simple effect of salinity on flavonoid and phenol and the effect of ascorbate on carotenoids and other effects on evaluated traits were significant. The double interaction effect of experimental factors was significant only on chlorophyll b and carotenoids. Base of the finding the mean  comparison results indicated that foliar spraying of 20 mM ascorbate led to the highest  chlorophyll content, but there was no significant increase in carotenoids. The mean comparison interaction effects demonstrated that 210 mM and non using of ascorbate gained to maximum leaves carotenoids content (0.72 µg/ml), while no use of salinity water and 20 mM of ascorbate solution with µg/ml 4.24 ml produced the highest leaves chlorophyll b.