This research was carried out in Pakdasht private greenhouse, to evaluate the effect of potresin, spermine and spermidine on quality and auantity of Basil under conditions of salt stress in 2016-17. This research was done as a factorial experiment in a completely randomized block design with three replications. The treatments included Putresin, spermine and spermidine at levels 4 (0, 50, 100 and 150 mg / l), salinity stress at four levels (0, 50, 100 and 150 mM) and control treatment without strain. The results showed that the interaction effects between polyamines, salinity and concentration on plant height, fresh/ dry shoot weight, fresh /dry weight of root, fresh/dry leaf weight, leaf chlorophyll content, CAT, POX, and GPX antioxidant enzymes, the ratio of K / Na ratio, ion leakage, proline, was statistically significant at 1% level. Interaction and simultaneous exposure of 150 mg / L spermidine and low salinity had a positive effect on all studied traits. In addition, the results showed that the concentration of 150 mM sodium chloride solution reduced the mentioned traits. However, spermidine improved this condition and symptoms of stress and damages were less observed in spermidine-treated plants. Therefore, it seems that this material can be used to withstand the oxidative stress of plants.
Key words: Basil, Putresison, Spermine and Spermidine, Salinity stress
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