꿀풀 및 섬초롱꽃의 생육과 항산화활성에 미치는 질소시비의 영향

Effect of Nitrogen Fertilizer on the Growth and Antioxidant Activities of Prunella vulgaris and Campanula takesimana

This research was conducted to identify the effect of nitrogen form on the growth and antioxidant activities of native plants. Prunella vulgaris and Campanula takesimana were cultivated with a ebb and flow hydroponic system and treated with 3 nitrogen forms of nutrient solution of NO₃-N, NH₄-N, and mixed NO₃/NH₄-N. The growth of Prunella vulgaris and Campanula takesimana showed the best results in nutrient solution of NO₃/NH₄-N. Suppling the NO₃/NH₄-N fertilizer increased the contents of the total flavonoids in Prunella vulgaris. Total polyphenol content and DPPH scavenging activity, and NO scavenging activity were higher in NH₄-N treatment, while suppling NO₃-N decreased the contents of total flavonoids and total polyphenol, and the antioxidant activities of DPPH scavenging activity and NO scavenging activity.