The effects of salicylic acid and ascorbic acid on the antioxidant system and activity of superoxide dismutase enzyme of Cut Flowers (Rosa hybrid acv. Black Magic)

چکیده مقاله

To analyze the post-harvest difficulties of cut Black magic roses, the effect of salicylic acid (100, 200ppm) and ascorbic acid (10 and 20 mg/l) with sucrose 3%, on the antioxidant system and on keeping the freshness of this flower, was conducted in a factorial arrangement, carried out in a completely randomized design, with 6 treatment groups and three repetitions, distilled water & sucrose as control, was performed. In this experiment, in addition to the activity of superoxide dismutase enzyme, properties such as vase life, wet weight, dry weight, ionic leakage, rate of solution absorption, petal anthocyanin, petal chlorophyll, were analyzed. Results showed that using the treatments caused the quantitative and qualitative differences to be significant on a 1% statistical level compared to the control group, and the flowers stayed fresh for 7.8 days with treatment of 200 mg/l of salicylic acid versus 4.2 days for the control group. Furthermore, the use of salicylic acid and ascorbic acid caused a reduction of superoxide dismutase enzyme activity in treatment groups versus the control group, due to influencing the phenol cycle and its antioxidant role. The objective of this study is to analyze the effect of using different amounts of salicylic acid and ascorbic acid on keeping the flowers fresh and the activity of antioxidant enzymes in cut roses and determining the optimum concentration of this material on post-harvest life

دریافت لینک دانلود مقاله