Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Growth and Yield of Atractylodes japonica Koidz. Affected by Shading and Flower Bud Pinching

차광 및 화뢰제거가 삽주의 생육 및 수량에 미치는 영향

  • Park, Jeong-Min (College of Agriculture and Life Sci., Gyeongsang Natl. University) ;
  • Kang, Jin-Ho (Research Institute of Life Sci., Gyeongsang Natl. University) ;
  • Kim, Man-Bae (Gyeongnam Agricultural Research and Extension Services)
  • Published : 2004.06.30
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Abstract

Crop productivity would be determined by relative capacity of source and sink. The study was carried out to measure the effects of shading and flower bud pinching on growth and yield of Atractylodes japonica Koidz. Shading treatment after transplanting was done at 100%, 65, 45 or 25% level of natural light intensity but the pinching treatment was to remove all the inflorescences formed after June 10, July 10, August 10 or none. Growth and yield at early and late stages were periodically measured. At the early stage, shading mainly influenced fresh weight rather than morphological characters. At the late stage, however, severer shading decreased numbers of stems, leaves, roots, fraction and total fresh weight. 65% shading from July 1 to September 30 after skipped the emerging and early growth stages showed nearly same growth and morphological characters but more rhizome yield per unit area than non-shading. In flower bud pinching treatment, earlier pinching increased number of roots, fraction fresh weights per plant and rhizome yield per unit area.

차광 및 화뢰제거를 통한 Source와 Sink의 인위적 조절이 삽주의 생장 및 수량에 미치는 영향을 조사하여 삽주재배에 관한 정보를 제공하고자 차광율과 화뢰 제거시기를 달리하여 시험을 실시하였던 바 그 결과를 요약하면 다음과 같다. 1. 정식기부터 계속된 차광처리는 생육초기에는 형태보다는 각 부위별 생체중에 주로 영향을 미쳤던 반면, 생육후기인 수확기에서는 차광율이 증가할수록 개체당 경수, 엽수, 근수, 잠아수 및 각부위별 생체중을 감소시켰다. 그러나 일정기간 생장이 이루어진 7월 1일부터 9월 30일까지 35%의 차광처리는 재배기간 내내 차광처리를 하지 않는 무차광과 개체당 생장 및 형태적 형질에는 차이가 없었으나, 단위면적당 수량은 오히려 많은 것으로 조사되었다. 2. 화뢰제거 처리는 처리시기가 빠를수록 개체당 근수와 지상부, 근경 및 뿌리의 생체중을 증가시켰을 뿐만 아니라 단위면적당 수량도 증가시키는 것으로 조사되었다.

Keywords

References

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