Salicylate Effect on Some of Physiological Response of Hibicus esculntus in Drought Stress

Seeds of okra (Hibiscus esculentus) were provied from Khorasan Razavi of Agriculture Research Center and were planted in the pots. After 35 days, In the two drought layer consist of mild dryness (35% of soil saturation), strong stress (15%) and Testifier (50%) and Salicylate with tensity of 10-4 and 10-7 M in form of solution and 9 treatment with 3 repetition was done form of pre-care and before applying drought stress during 20-30 days. 3 months after planting the seeds, for physiological examinations, including evaluation of chlorophyll a, b, soluble sugars and antioxidant enzymes, were used from per pot with four replications randomly. SPSS statistical software and tests Duncan were used for data analysis and compare means. After using salicylate, the ration of antioxidant enzymes under the stress increased and was performed as a cleaner of Hydroxyl radical system. Using salicylate shows no considerable difference in ratio of Saturated hydrocarbons and chlorophyll under the strong drought stress. It is resulted that salicylic acid as a growth stimulus can stimulate the growth of the studied plant under the stress conditions and improve the decrease of growth resulted from the drought stress.