Effect of Application of Plant Growth Regulator on Growth Characteristics in Bupleurum falcatum L.

식물생장조절물질 처리에 따른 시호의 생육특성

  • Lee, Ho (Dept. of Agronomy, College of Agriculture & Life-Sciences, Kyungpook National University) ;
  • Kim, Kil-Ung (Dept. of Agronomy, College of Agriculture & Life-Sciences, Kyungpook National University) ;
  • Son, Tae-Kwon (Institute of Agricultural Science & Technology, Kyungpook National University) ;
  • Lee, Ji-Ean (Dept. of Agronomy, College of Agriculture & Life-Sciences, Kyungpook National University) ;
  • Lee, Sang-Chul (Dept. of Agronomy, College of Agriculture & Life-Sciences, Kyungpook National University)
  • 이호 (경북대학교 농업생명과학대학) ;
  • 김길웅 (경북대학교 농업생명과학대학) ;
  • 손태권 (경북대학교 농업과학기술연구소) ;
  • 이지언 (경북대학교 농업생명과학대학) ;
  • 이상철 (경북대학교 농업생명과학대학)
  • Published : 2002.12.31

Abstract

This study was conducted to determine the optimum planting dates and density of one year old Bupleurum falcatum L. to improve its quality. Furthermore, the effect of cultural methods and plant growth regulators$(GA_3,\;IAA,\;Kinetin)$ on the quality of B. falcatum were also investigated. In this study, Jeongseon cultivar collected in Korea and Mishima cultivar introduced from Japan were used. Some of the results obtained are as follows. Jeongseon cultivar showed less stem branches and shoot weight compared to Mishima. However, Jeongseon cultivar showed tall plant height, high root fresh and dry weight, and high levels of SSa and TSS, but low SSc content than that of Mishima. Although fresh and dried root weight of both cultivars were not affected by plant growth regulators treatment. compared with the untreated one, increasement of TSS content were made by $GA_3$ 100 ppm, IAA 50 ppm or 10 ppm and kinetin 10 ppm treatment in Jeongseon cultivar, and by $GA_3$ 10 ppm and IAA 100 ppm or 10ppm treatment in Mishima cultivar applied on June 1.

본 시험은 국내 재래종 정선시호와 일본에서 도입된 삼도시호를 공시하여 시호의 품질 향상을 위해 식물생장조절제 처리가 시호의 생육 및 saikosaponin 함량에 미치는 요인들을 구명하여 얻어진 결과를 요약하면 다음과 같다. 1. 정선시호는 삼도시호보다 분지수는 적었지만 경수는 많았고, 근경이 굵으며 생근중과 건근중은 무거웠고 지근수도 많은 경향이었다. SSa 및 TSS 함량에서 정선시호가 삼도시호보다 높았고, SSc 함량에서는 정선시호가 삼도시호보다 적었다. 2. 식물생장조절제 처리시기 간에서는 6월에 처리한 것이 7월에 처리한 것보다 경수가 많았고 건근중에서는 유의적인 차이가 없었으나, 6월에 처리한 것이 7월에 처리한 것보다 SSd 함량이 높았다. 3. 식물생장조절제 처리에서 $GA_3$, 10, 50, 100 ppm, IAA 10, 50 ppm, kinetin 50 ppm 지상부 처리에서 지상부 생육을 촉진하였고, kinetin 50 ppm 처리구의 생근중과 건근중은 무처리구보다 무거웠으나 TSS 함량은 무처리구보다 낮았다. $GA_3$, 10 ppm, IAA 10 ppm처리에서 SSa, SSd 및 TSS 함량이 증가되었으며 TSS 함량은 $GA_3$, 50 및 100 ppm에서 높았다. 4. 무처리에 비하여 정선시호는 6월의 $GA_3$, 100 rpm, IAA 10 및 50 ppm, kinetin 10 ppm 처리구에서, 삼도시호는 6월의 $GA_3$, 10 ppm, IAA 10 및 100 ppm 처리구에서 생근중이나 근중은 차이가 없었지만 TSS 함량이 높아 시호생산에 가장 유리한 처리로 판단되었다.

Keywords

References

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