Herbicidal Activity of Essential Oil from Palmarosa (Cymbopogon martini)

팔마로사 정유의 살초활성

  • Hong, Su-Young (Department of Biological Environment, Kangwon National University) ;
  • Choi, Jung-Sup (Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology) ;
  • Kim, Song-Mun (Department of Biological Environment, Kangwon National University)
  • 홍수영 (강원대학교 바이오자원환경학과) ;
  • 최정섭 (한국화학연구원 산업바이오화학연구센터) ;
  • 김성문 (강원대학교 바이오자원환경학과)
  • Received : 2011.01.03
  • Accepted : 2011.02.21
  • Published : 2011.03.31


The objective of this study was to find herbicidal compounds in the essential oil of palmarosa (Cymbopogon martini). Of essential oils from basil (Ocimum basilicum), blackpepper (Piper nigrum), clary sage (Salvia sclarea), ginger (Zingiber pfficinale), hyssop (Hyssopus officinalis), nutmag (Myristica fragrance), palmarosa (Cymbopogon martini), fennel (Foeniculum vulgare), sage (Salvia leucantha), and spearmint (Mentha spicta), the herbicidal activity of palmarosa essential oil, which was determined by a seed bioassay using rapeseed (Brassica napus L.), was highest ($GR_{50}$ value, $201{\mu}g\;mL^{-1}$). In palmarosa essential oil, 11 volatile organic chemicals were identified by gas chromatography-mass spectometry with solid-phase micro-extraction apparatus and the major constituents were geraniol (40.23%), geraniol acetate (15.57%), cis-ocimene (10.79%), and beta-caryophyllene (8.72%). The $GR_{50}$ values of geraniol, citral, nerol, and geranyl acetate were 151, 224, 452, and $1,214{\mu}g\;mL^{-1}$, respectively. In greenhouse and field experiments, foliar application of palmarosa essential oil at the level of $80kg\;ha^{-1}$ controlled weeds effectively. Overall results of this study showed that the herbicidal activity of palmarosa essential oil could be due to geraniol and citral which had lower $GR_{50}$ values.


Grant : 화학농약 대체기술

Supported by : 농촌진흥청


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