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Exogenous Application of Foliar Salicylic Acid and Propolis Enhances Antioxidant Defenses and Growth Parameters in Tomato Plants
Faculty
Agriculture
Year:
2020
Type of Publication:
ZU Hosted
Pages:
10, 74
Authors:
Abdelaleim Ismail Ibrahim ElSayed
Staff Zu Site
Abstract In Staff Site
Journal:
Plants MDPI
Volume:
Keywords :
Exogenous Application , Foliar Salicylic Acid , Propolis Enhances
Abstract:
Salicylic acid (SA) and propolis (PR) are known to regulate the physiological process and to have a relevant role in bioactive compounds content. Our experiment was designed to evaluate the effect of SA and PR application on the growth, yield, and quality parameters of tomato grown for the fresh market in field conditions in Egypt. We studied the effect of twelve treatments where SA (0.50, 1.00, 1.50, 2.00, and 2.50 mM) and PR (1, 2, 10, 20, and 100 mg propolis mL1) were applied at increasing doses as a sole agent or combined each other (1.50 mM + 10 mg mL1 for SA and PR, respectively). An untreated control was also considered. Tomato plants treated with SA (0.50, 1.00, and 1.50 mM) showed a significant effect in all traits especially SA1 (0.50 mM) in growth parameters and SA2 (1.00 mM) in pigment and antioxidant content. Propolis foliar application was more effective than SA as it revealed that raising the concentration of aqueous extract enhanced the growth parameters and pigment in tomato. The best result was obtained by the 10 mg mL1 treatment. The effect of propolis on antioxidant enzymes varied as the 10 mg mL1 treatment was effective on peroxidases and superoxide dismutase, while 100 mg mL1 was more effective on catalase. Salicylic acid and propolis have a positive effect on both preserving tomato plants and on nutrient supply, so the mixed intermediate concentration (1.50 mM + 10 mg mL1) is considered very effective and results in an improvement of all plant traits.
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Abdelaleim Ismail Ibrahim ElSayed, "Physiological aspects of raffinose family oligosaccharides (RFOs) in plants: Protection against abiotic stress.", Wiley, 2014
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