Abstract
식물 정유로부터 신규 제초제 개발을 위한 살초활성물질을 탐색하였다. 실험에 사용된 10종의 식물정유는[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), spearmint(Mentha spicta)] 등이었으며, 이중 palmarosa 정유가 유채에 대한 살초력이 가장 높았다($GR_{50}$값, $201{\mu}g\;mL^{-1}$). Palmarosa 정유에 함유된 휘발성 유기화합물로는 alpha-humulene, betacaryophyllen, cis-ocimene, citral, dipentene, geraniol, geranyl acetate, myrcene, nerol, terpinolene, transocimene이었다. Palmarosa 정유에는 geraniol(40.23%), geraniol acetate(15.57%), cis-ocimene(10.79%), beta-caryophyllene(8.72%)이 다량 함유되어 있었고, geraniol과 citral의 $GR_{50}$값은 각각 151과 $224{\mu}g\;mL^{-1}$로 매우 낮았으며 이들 2종의 휘발성 유기화합물이 palmarosa 정유의 살초력에 크게 기여했다고 추론된다. 온실조건에서 palmarosa 정유 $80kg\;ha^{-1}$ 경엽처리는 수수, 돌피, 개밀, 바랭이, 자귀풀, 어저귀, 도꼬마리, 메꽃을 완전 방제하였다. 포장조건에서 민들레, 망초, 쇠비름은 $40kg\;ha^{-1}$ 경엽처리에도 모두 100% 방제가 이루어졌으나 질경이의 방제가는 50% 이었다. 본 연구 결과는 palmarosa 정유에 함유되어 있는 geraniol과 citral이 살초활성에 크게 기여했다는 것을 시사하여 준다. 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.
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Claims 12
Claim · model-written summary
Palmarosa essential oil had the highest herbicidal activity among ten oils in a rapeseed seed bioassay.
- Taxon
- rapeseed (Brassica napus L.)
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Treatment
- palmarosa essential oile0
- Outcome
- herbicidal activitye0
- Direction
- higheste0
- Value
- $201{\mu}g\;mL^{-1}$e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“the herbicidal activity of palmarosa essential oil, which was determined by a seed bioassay using rapeseed (Brassica napus L.), was highest ($GR_{50}$ value, $201{\mu}g\;mL^{-1}$)”
Claim · model-written summary
Palmarosa oil contained eleven identified volatile organic chemicals.
Verbatim
e0“In palmarosa essential oil, 11 volatile organic chemicals were identified by gas chromatography-mass spectometry with solid-phase micro-extraction apparatus”
Claim · model-written summary
Geraniol comprised 40.23% of palmarosa oil.
Verbatim
e0“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%)”
Claim · model-written summary
Geraniol acetate comprised 15.57% of palmarosa oil.
Verbatim
e0“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%)”
Claim · model-written summary
Cis-ocimene comprised 10.79% of palmarosa oil.
Verbatim
e0“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%)”
Claim · model-written summary
Beta-caryophyllene comprised 8.72% of palmarosa oil.
Verbatim
e0“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%)”
Claim · model-written summary
Geraniol had a GR50 value of 151 in the herbicidal assay.
Not reportedTaxon
Verbatim
e0“The $GR_{50}$ values of geraniol, citral, nerol, and geranyl acetate were 151, 224, 452, and $1,214{\mu}g\;mL^{-1}$, respectively”
Claim · model-written summary
Citral had a GR50 value of 224 in the herbicidal assay.
Not reportedTaxon
Verbatim
e0“The $GR_{50}$ values of geraniol, citral, nerol, and geranyl acetate were 151, 224, 452, and $1,214{\mu}g\;mL^{-1}$, respectively”
Claim · model-written summary
Nerol had a GR50 value of 452 in the herbicidal assay.
Not reportedTaxon
Verbatim
e0“The $GR_{50}$ values of geraniol, citral, nerol, and geranyl acetate were 151, 224, 452, and $1,214{\mu}g\;mL^{-1}$, respectively”
Claim · model-written summary
Geranyl acetate had a GR50 value of 1,214 micrograms per millilitre in the herbicidal assay.
Not reportedTaxon
Verbatim
e0“The $GR_{50}$ values of geraniol, citral, nerol, and geranyl acetate were 151, 224, 452, and $1,214{\mu}g\;mL^{-1}$, respectively”
Claim · model-written summary
Foliar palmarosa oil at 80 kg per hectare effectively controlled weeds in greenhouse and field experiments.
- Taxon
- weedse0
- Treatment
- foliar application of palmarosa essential oil at the level of $80kg\;ha^{-1}$e0
- Outcome
- weedse0
- Direction
- controllede0
- Setting
- greenhouse and field experimentse0
Not reportedComparator
Verbatim
e0“In greenhouse and field experiments, foliar application of palmarosa essential oil at the level of $80kg\;ha^{-1}$ controlled weeds effectively”
Claim · model-written summary
The authors attributed palmarosa oil herbicidal activity to geraniol and citral.
Verbatim
e0“the herbicidal activity of palmarosa essential oil could be due to geraniol and citral which had lower $GR_{50}$ values”
The same questions in other papers
botanical · weed · Brassica napus (oilseed rape)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.