El-Hady Nouran Ahmed Abdo Abd, ElSayed Abdelaleim Ismail, El-Saadany Sayed Soliman, Deligios Paola A, Ledda Luigi
Biochemistry Department, Faculty of Agriculture, Zagazig University, 44519 Zagazig, Egypt.
Department of Agricultural Sciences, University of Sassari, 07100 Sassari, Italy.
Plants (Basel). 2021 Jan 1;10(1):74. doi: 10.3390/plants10010074.
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 mL) were applied at increasing doses as a sole agent or combined each other (1.50 mM + 10 mg mL 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 mL treatment. The effect of propolis on antioxidant enzymes varied as the 10 mg mL treatment was effective on peroxidases and superoxide dismutase, while 100 mg mL 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 mL) is considered very effective and results in an improvement of all plant traits.
已知水杨酸（SA）和蜂胶（PR）可调节生理过程，并在生物活性化合物含量方面发挥重要作用。我们的实验旨在评估在埃及田间条件下，将SA和PR施用于新鲜市场番茄种植时，对其生长、产量和品质参数的影响。我们研究了12种处理的效果，其中SA（0.50、1.00、1.50、2.00和2.50 mM）和PR（1、2、10、20和100 mg蜂胶/mL）以递增剂量单独施用或相互组合（SA和PR分别为1.50 mM + 10 mg/mL）。还设置了未处理的对照。用SA（0.50、1.00和1.50 mM）处理的番茄植株在所有性状上均表现出显著效果，尤其是SA1（0.50 mM）对生长参数，SA2（1.00 mM）对色素和抗氧化剂含量。叶面喷施蜂胶比SA更有效，因为提高水提取物浓度可增强番茄的生长参数和色素含量。10 mg/mL处理获得了最佳结果。蜂胶对抗氧化酶的影响各不相同，10 mg/mL处理对过氧化物酶和超氧化物歧化酶有效，而100 mg/mL对过氧化氢酶更有效。水杨酸和蜂胶对保护番茄植株和养分供应均有积极作用，因此混合中间浓度（1.50 mM + 10 mg/mL）被认为非常有效，并能改善所有植株性状。
