Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effects of Organic fertilizer Application on Growth and Medicinal ingredients of Platycodon grandiflorum Radix

유기질 비료시용에 따른 도라지의 생육 및 약용성분에 미치는 효과

  • 전승호 (경남과학기술대학교 종자실용화연구소) ;
  • 노일래 (경상대학교 농학과(농업생명과학연구원)) ;
  • 김영국 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 조영손 (경남과학기술대학교 농학.한약자원학부)
  • Received : 2016.05.03
  • Accepted : 2016.07.26
  • Published : 2016.08.31
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Abstract

This study was conducted to elucidate the effect of organic fertilizer on growth characteristics, saponin contents and antioxident activity of Platycodin grandiflorum Ridix roots for organic farming. As basal fertilizers, chemical fertilizer, mixed organic fertilizer, bacterial cultures and fermented oil cake and decomposed manure were treated based on 3 kg/10a level before transplanting Platycodin grandiflorum Ridix. In root length, when chemical fertilizer plot and mixed organic fertilizer plot were treated, root length was recorded the highest scores (25.3 and 24.0 cm) Root width was recorded the highest score (26.6 cm) in chemical fertilizer plot. The number of fine-roots was the highest in mixed organic fertilizer plot and chemical fertilizer plot (20.0 and 17.0), respectively. Fresh weight, which affects directly yield, was the highest in organic fertilizer plot (55.7 g/plant). The content of Platycodin D was shown to 327.4~373.8 mg/100 g, the highest values were observed in organic fertilizer plot. The total polyphenol and flavonoid contents were recorded the highest scores (15.5 and 15.3 mg/g, respectively) in organic fertilizer plot. In this study we confirmed that application of organic fertilizer was effective to increase yield and pharmacological effect through increase of the number of fine-roots with high saponin contents.

이 연구는 도라지의 유기재배를 위하여 유기질 비료 시용이 도라지 뿌리의 생육특성 및 사포닌, 항산화 활성에 미치는 영향을 구명하고자 실시되었다. 3년근 도라지를 이식하기 전 기비로 화학비료, 유기질비료, 균배양체, 유박 및 퇴비를 시용한 결과, 뿌리의 길이는 화학비료와 유기질 비료 시용구에서 25.3 cm와 24.0 cm로 가장 길었으며, 직경에서도 화학비료 시용구에서 가장 굵은 26.6 mm 나타났다. 지근의 수는 유기질퇴비와 화학비료 시용구에서 가장 많은 20.0개와 17.0개로 조사되었으며, 수량과 관련성이 있는 생체중은 유기질비료 시용구에서 55.7 g으로 가장 높게 나타났다. Platycodin D의 함량은 327.4~373.8 mg/100 g의 범위로 유기질퇴비 시용구에서 높은 값이 나타났으며, 도라지의 총 polyphenol 및 flavonoid 함량은 유기질비료 시용구에서 각각 15.5, 15.3 mg/g 가장 높게 나타났다. 따라서 도라지의 유기재배시 유기질비료 시용구에서 수량성을 물론, 약리성 증대를 위한 사포닌 함량이 많은 지근의 수와 항산화 성분이 높은 것으로 나타났다.

Keywords

References

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