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The freezing hardiness (expressed as LT50) as well as changes in the antioxidant enzymes activity, total protein and lipid peroxidation (MDA content), total phenolic and flavonoid content, antioxidant capacity, chlorophyll fluorescence (Fv/Fm) of Echinacea purpurea (L.) Moench were investigated. Five-month-old purple coneflower seedlings were kept at 4°C for two weeks to induce...
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