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Effects of Alachlor and Pendimethalin on Germination and Growth of Balloon Flower (Platycodon grandiflorum)

알라클로르와 펜디메탈린이 도라지의 발아 및 생육에 미치는 영향

  • Kim, Jin-Won (National Institute of Agricultural Sciences, RDA) ;
  • Lee, In-Yong (National Institute of Agricultural Sciences, RDA) ;
  • Lee, Jeongran (National Institute of Agricultural Sciences, RDA)
  • 김진원 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 이인용 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 이정란 (국립농업과학원 농산물안전성부 작물보호과)
  • Received : 2018.01.22
  • Accepted : 2018.03.27
  • Published : 2018.03.31

Abstract

Balloon flower (Platycodon grandiflorum) is one of minor crops in Korea. Only four ACCase inhibiting herbicides are registered for P. grandiflorum and the farmers usually use general but unregistered herbicides which can cause critical phytotoxicity. So, this study was conducted to investigate effects of alachlor and pendimethalin on germination and early growth of P. grandiflorum. To evaluate the effect of alachlor and pendimethalin, two herbicides were treated to the seeds in petri-dish and soil. In the petri-dish, alachlor completely inhibited the germination as well as pendimethalin inhibited the germination slightly but not significantly. In case of soil application, alachlor inhibited germination and plant height of P. grandiflorum significantly as well as pendimethalin inhibited plant height and root length significantly. We showed the possibility of phytotoxicity of alachlor and pendimethalin to P. grandiflorum and strongly suggest that two herbicides should not be used to the cultivation of P. grandiflorum. Unregistered herbicides should not be used for weed management and additional researches for screening of safe herbicide to minor crops should be conducted as soon as possible.

Keywords

Alachlor;Balloon flower;Germination;Pendimethalin

Acknowledgement

Supported by : Rural Development Administration

References

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