Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Growth Characteristics and Ginsenoside Contents of 6-Year-Old Ginseng (Panax ginseng C. A. Meyer) by Shade Materials in Paddy Field

논토양에서 해가림 피복물 종류별 6년생 인삼의 생육과 진세노사이드 함량

  • 이성우 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 박기춘 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 이승호 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김금숙 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장인복 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김용범 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 차선우 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2013.02.06
  • Accepted : 2013.04.01
  • Published : 2013.04.30
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Abstract

This study was carried out to select optimal shade materials among four-layered polyethylene (PE) net (FLPN), aluminium-coated PE sheet (APSS), and blue PE sheet (BPSS) in condition of paddy field cultivated 6-year-old ginseng. The order of light-penetrated ratio and air temperature by shade materials was BPSS > APSS > FLPN. Light-penetrated ratio of BPSS before two fold shade was more 3 times and 2 times than that of FLPN and APSS, respectively. Air temperature of BPSS was also higher $1.6^{\circ}C$ and $1.4^{\circ}C$ than that of FLPN and APSS, respectively. BPSS showed good cultural environment because all of light-penetrated ratio and air temperature were become higher in spring and fall season but lower in summer season by additional shade with two-layered PE net. Survived-leaf ratio was highest in BPSS and lowest in FLPN causing a little water leak on a rainy day. Rusty-root ratio was also highest in FLPN because soil moisture content was increased by water leak. The order of root yield was BPSS > APSS > FLPN, and the cause of highest yield in BPSS was higher light-penetrated ratio during spring and fall season, higher survived-leaf ratio, and lower rusty-root ratio than that of APSS and FLPN. BPSS showed highest total ginsenoside content because of high light-penetrated ratio, blue light effect, and the difference in dry matter partitioning ratio such as low taproot ratio, and high lateral root ratio.

Keywords

References

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