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Effect of Ethanol Extract of Herbal Medicine on Crop Growth Inhibitor

한약재 주정 추출물이 종자발아와 유묘생장에 미치는 영향

  • Kim, Jin-Hyo (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Jun-Young (Sancheong Oriental Medicinal Herb Institute) ;
  • Ryu, Sung-Ji (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Choi, Geun-Hyoung (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Won-Il (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Kim, Se-Ri (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Park, Byung-Jun (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Cho, Nam-Jun (Chemical Safety Division, National Academy of Agricultural Science, RDA)
  • 김진효 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 김준영 ((재)산청한방약초연구소) ;
  • 류성지 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 최근형 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 김원일 (농촌진흥청 국립농업과학원 유해생물팀) ;
  • 김세리 (농촌진흥청 국립농업과학원 유해생물팀) ;
  • 박병준 (농촌진흥청 국립농업과학원 화학물질안전과) ;
  • 조남준 (농촌진흥청 국립농업과학원 화학물질안전과)
  • Received : 2014.05.26
  • Accepted : 2014.08.29
  • Published : 2014.09.30

Abstract

BACKGROUND: Herbal extracts have been screened for their inhibitory effect of seed germination and root development on weeds, but there is a scarcity of reports for crop growth regulation. The objective of this research was to develop a growth inhibitor on Brassica campestris, and its effective extraction method from herbal medicine extract. METHODS AND RESULTS: Eighty four herbal medicine extracts were tested for their plant growth inhibition activity on B. campestris. The alcohol extracts of Artemisia annua, Cinnamomum cassia, and Mentha arvensis inhibited over 30% of germination and the extract of A. annua, and C. cassia inhibited over 70% of radicle growth at 0.1 % w/w treatment. The partially purified extracts of A. annua, and C. cassia with dichloromethane and hexane showed stronger radicle growth inhibition than the crude extracts on B. campestris. The diethyl ether extract of A. annua showed a similar 50% radicle growth inhibition ($RI_{50}$ = 45 mg/L) to its partially purified extract with dichloromethane or hexane, but the diethyl ether extract of C. cassia showed a worse $RI_{50}$ than the purified extract. CONCLUSION: The alcohol extracts of A. annua, and C. cassia showed potent radicle growth inhibition properties on B. campestris. Diethyl ether proved to be a good solvent for simple extraction from A. annua.

Keywords

References

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