Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Effect of Topping Time on Growth and Quality in Glycyrrhiza uralensis

적심시기가 감초의 생육 및 품질에 미치는 영향

  • Nam, Sang-Young (Chungbuk Agricultural Research and Extension Service) ;
  • Kim, In-Jae (Chungbuk Agricultural Research and Extension Service) ;
  • Choi, Seong-Yel (Chungbuk Agricultural Research and Extension Service) ;
  • Kim, Young-Ho (Chungbuk Agricultural Research and Extension Service) ;
  • Song, In-Gyu (Chungbuk Agricultural Research and Extension Service) ;
  • Lee, Guang-Jae (Chungbuk Agricultural Research and Extension Service) ;
  • Park, Jae-Ho (Chungbuk Agricultural Research and Extension Service) ;
  • Kim, Tae-Jung (Chungbuk Agricultural Research and Extension Service)
  • Received : 2010.08.11
  • Accepted : 2011.02.16
  • Published : 2011.04.30
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Abstract

This study was performed to evaluate the effect of pinching time on growth and quality of Glycyrrhiza uralensis soil cultured in Chungbuk Agricultural Research and Extension Service from 2008 to 2009. The treated pinching time were given as the June 30, July 30, August 30, and non-pinching (control). The amounts of pinching were 20% of stem length each plant. The obtained results from this study were summarized as follows; The plant height and number of branches were higher in control than pinching treatments. The stem and leaf weight were increase with early pinching. The plant height and stem diameter were not affected by pinching time. There was no regular trends in runner growth. We found that pinching was induced root growth, and early pinching was accelerated root growth. The root yield was increased in JUN and JUL pinching treatments as 11-30% in 2 years plants and 6-11% in 3 years plants compared to control as 238 kg/10a and 432 kg/10a, respectively.

본 연구는 적심이 감초의 생육 및 수량에 미치는 영향을 구명코자 2008년부터 2009년까지 2년간 충북농업기술원에서 수행하였다. 적심 처리시기에 따라 6월 30일(JUN), 7월 30일(JUL), 8월 30일(AUG), 무적심(대조구) 등 4처리를 하였으며, 적심량은 줄기 길이의 20%를 제거하였다. 본 연구의 결과는 다음과 같이 요약할 수 있다. (1) 초장과 분지수는 적심처리구보다 대조구에서 우수하였으며, 경엽중은 적심시기가 빠를수록 무거웠다. (2) 초장과 줄기 직경은 적심 시기에 따른 영향을 받지 않았다. (3) 지표면의 포복경 생장에는 일정한 경향이 없었다. (4) 본 실험에서 적심이 뿌리 생장을 유도하고, 조기 적심이 뿌리 생육을 촉진하였다. (5) 근중은 대조구 2년생 238 kg/10a에 비해 JUN 처리구와 JUL 처리구에서 각각 11~30% 증가하였으며, 3년생은 대조구 432 kg/10a에 비해 6~11% 증가하였다.

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References

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