Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effect of Sowing Density and Number of Seeds Sown on Panax ginseng C. A. Meyer Seedling Stands under Direct Sowing Cultivation in Blue Plastic Greenhouse

인삼 하우스 직파재배 시 파종입수 및 재식밀도가 입모율 향상에 미치는 영향

  • 모황성 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 박홍우 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 장인배 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 유진 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 박기춘 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 현동윤 (농촌진흥청 국립원예특작과학원 기획조정과) ;
  • 이응호 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김기홍 (농촌진흥청 국립원예특작과학원 인삼특작부)
  • Received : 2014.10.02
  • Accepted : 2014.11.05
  • Published : 2014.12.30
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Abstract

This study was performed to investigate the effects of sowing density and number of seeds sown on the emergence rate and growth characters of Panax ginseng C. A. Meyer under direct sowing cultivation in a blue plastic greenhouse. Ginseng seedlings, derived from seeds sown directly at different densities (90, 108, 135, and 162 seeds per $162m^2$), were cultivated in sandy loam soil within a blue plastic greenhouse. In contrast to the emergence rate, which decreased with an increase of sowing density, number of survival plant showed an increasing trend. Interestingly, the emergence and number of survival plant were significantly enhanced when 2 or 3 seeds were sown per hole compared with when one seed was sown per hole. Growth of the aerial parts of ginseng were not markedly influenced by sowing density or the number of seeds sown. However, chlorophyll content (SPAD values) increased with an increase in sowing density. Root parameters, such as root length, diameter, and weight, and the number of lateral roots decreased with an increase in sowing density, but were not noticeably influenced by the number of seeds sown. Total saponin content was the highest in the treatment plot containing 135 seeds. Similarly, the content of each ginsenoside was also tended to be higher in this treatment than in other treatment plots. On the basis of the results obtained in this study, it was possible to determine the optimal sowing density and seed number for the direct sowing cultivation of ginseng in blue plastic greenhouse.

Keywords

References

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