Abstract
The evaluation of the inhibition effect exerted by the essential oils of basil (Ocimum basilicum), sage (Salvia officinalis), thyme (Thymus vulgaris), lemon balm (Melissa officinalis) and goldenrod (Solidago virgaurea) on seeds germination and early seedling growth of velvetleaf (Abutilon theophrasti Medik.) weed was examined in a laboratory bioassay. The essential oils were obtained by hydrodistillation and characterized chemically by gas chromatography coupled with both mass spectrometry and flame ionization detector. The working solutions of essential oil emulsified with Tween 20 and dissolved in distilled water were prepared at three concentration levels (0.01%, 0.1% and 1%, vol/vol). The results obtained showed that increase of essential oil concentration leads to decrease of seed germination, shoot and radical length of velvetleaf. The obtained data revealed a highly significant effect (P < 0.05) between control and 1% and 0.1% oil concentrations in all treatments. The essential oils of basil, thyme and lemon balm exhibited more powerful bio-herbicidal effect compared to sage and goldenrod essential oils on the germination and early seedling growth of velvetleaf weed.
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Claims 8
Claim · model-written summary
Increasing essential oil concentration decreased velvetleaf seed germination.
- Taxon
- velvetleaf
Abutilon theophrastie0 - Treatment
- essential oil concentratione0
- Outcome
- seed germinatione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of essential oil concentration leads to decrease of seed germination, shoot and radical length of velvetleaf”
Claim · model-written summary
Increasing essential oil concentration decreased velvetleaf shoot length.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- essential oil concentratione0
- Outcome
- shoote0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of essential oil concentration leads to decrease of seed germination, shoot and radical length of velvetleaf”
Claim · model-written summary
Increasing essential oil concentration decreased velvetleaf radicle length.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- essential oil concentratione0
- Outcome
- radical lengthe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of essential oil concentration leads to decrease of seed germination, shoot and radical length of velvetleaf”
Claim · model-written summary
Oil treatments at 1% differed significantly from control.
- Taxon
- velvetleafAbutilon theophrastit0
- Treatment
- 1%e0
- Outcome
- effecte0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highly significant effect (P < 0.05) between control and 1% and 0.1% oil concentrations in all treatments”
t0“velvetleaf”
Claim · model-written summary
Oil treatments at 0.1% differed significantly from control.
- Taxon
- velvetleafAbutilon theophrastit0
- Treatment
- 0.1%e0
- Outcome
- effecte0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highly significant effect (P < 0.05) between control and 1% and 0.1% oil concentrations in all treatments”
t0“velvetleaf”
Claim · model-written summary
Basil oil exerted stronger herbicidal effects than sage and goldenrod oils.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- basile0
- Outcome
- bio-herbicidal effecte0
- Direction
- more powerfule0
- Comparator
- sage and goldenrod essential oilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oils of basil, thyme and lemon balm exhibited more powerful bio-herbicidal effect compared to sage and goldenrod essential oils on the germination and early seedling growth of velvetleaf weed”
Claim · model-written summary
Thyme oil exerted stronger herbicidal effects than sage and goldenrod oils.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- thymee0
- Outcome
- bio-herbicidal effecte0
- Direction
- more powerfule0
- Comparator
- sage and goldenrod essential oilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oils of basil, thyme and lemon balm exhibited more powerful bio-herbicidal effect compared to sage and goldenrod essential oils on the germination and early seedling growth of velvetleaf weed”
Claim · model-written summary
Lemon balm oil exerted stronger herbicidal effects than sage and goldenrod oils.
- Taxon
- velvetleafAbutilon theophrastie0
- Treatment
- lemon balme0
- Outcome
- bio-herbicidal effecte0
- Direction
- more powerfule0
- Comparator
- sage and goldenrod essential oilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oils of basil, thyme and lemon balm exhibited more powerful bio-herbicidal effect compared to sage and goldenrod essential oils on the germination and early seedling growth of velvetleaf weed”
The same questions in other papers
botanical · growth · Abutilon theophrasti (velvetleaf)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
3 papers more in this group
See all 7 papers →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.