Effect of Salicylic Acid on Antioxidant Enzyms of Milk Thistle (Silybum marianum) Accelerated Aging Seed اثر سالیسیلیک اسید بر آنزیم های انتی اکسیدان

Effects of accelerated aging and seed priming treatments were studied on milk thistle seeds during germination process. Experiment was performed in a factorial based on Complete Randomized Design (CRD). Treatments were Salicylic acid concentrations (۰, ۵۰۰, ۱۰۰۰, ۱۵۰۰ and ۲۰۰۰ ppm) and accelerated aging for (۰, ۴۸, ۹۶ and ۱۴۴ hours under ۴۵ °C and ۹۵% humidity) with three replications. Our results showed thatsalicylic acid dramatically enhanced seed germination, seed vigor and primary seedling growth. Catalase, polyphenol oxidase and peroxidase activity was increased by seed priming. Reduction in germination parameters were observed by increase in accelerated aging durations The highest antioxidant activity, germination percentage and daily germination rate and seed vigour were observed at primed seeds with ۱۰۰۰ ppm Salycilic acid on non-aged seeds. Treatment salicylic acid at a concentration of ۱۰۰۰ ppm has the greatest impact and cause harmful effects healing was aging. اثر سالیسیلیک اسید بر آنزیم های انتی اکسیدان

کلیدواژه ها:

Accelerated aging ، Antioxidant enzymes ، Catalase ، Milk thistle ، Peroxidase ، Superoxide dismutase ، Seed Priming ، Accelerated aging ، Antioxidant enzymes ، Catalase ، Milk thistle ، Peroxidase ، Superoxide dismutase ، Seed Priming کاتالاز