Effects on Growth and Medicinal Ingredients of Platycodon grandiflorum Radix by Organic and Chemical Fertilizers
2017
Jeon, S.H., Gyeongnam National University of Science and Technology, Jinju, Republic of Korea | Rho, I.R., Gyeongsang National University, Jinju, Republic of Korea | Kim, Y.G., National Institute of Horticultural Herbal Science, Wanju, Republic of Korea | Chun, H.S., Gyeongnam National University of Science and Technology, Jinju, Republic of Korea | Cho, Y.S., Gyeongnam National University of Science and Technology, Jinju, Republic of Korea
This study was done to elucidate effects on organic and chemical fertilizers for growth characteristics, saponin content and antioxidant activity in Platycodin grandiflorum Ridix root. Chemical and mixed organic fertilizers were treated at levels of 50%, 100% and 200% based on nitrogen 3 kg/10a before transplant of Platycodin grandiflorum Ridix. As a result, when 50% mixed organic and chemical fertilizer plots were treated to P. grandiflorum Ridix root, the root length showed the highest scores of 26.9 and 26.5 cm, respectively. Root width exhibited the highest scores of 25.6 mm and 25.2 mm in 50% mixed organic and chemical fertilizer plots, respectively. The number of fine-roots and fresh weight presented the highest values in 50% mixed organic fertilizer plot as 26.7 and 50.4 g, respectively. The content of platycodin D3 was ranged in 183.4~321.7 mg/100 g, which the highest value was observed in 100% mixed organic fertilizer plot. The content of saponin except for deapioplatycodin D presented higher amount in the mixed organic fertilizer plots. Treatment of 200% chemical fertilizer presented to be withered in transplant cultivation of 3 year-old roots.
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