Abstract
Abstract Acroptilon repese (L.) Dc (Asteraceae) is a perennial herb with erect stems growing to 80 cm in height. It is a wide distributed plant that is native to Magnolia,Western Turkistan, Iran, Turkey and captain Asia and was introduced into America and Canada at the beginning of previous centaury. In the present work we study the chemical composition of the aerial parts of the plant and phytotoxic effects of the oil against some weeds. The hydrodistillated essential oil from aerial parts of A. repens was analyzed by GCMS. Totally 26 compound were identified. Main components of the oil are: Caryophyllen oxide (9.6 %), β-cubebene (9.5 %), β-Caeyophyllen (9.2 %) α-copaen (8.7 %). The results of phytotoxic assay indicated that the essential oil obtained from Acroption repens significantly reduced seed germination of Amaranthus retroflexus and Cardaria draba, two common weed, in a dose dependent manner. On the other hand, the essential oil of A. repens inhibited significantly the root growth of A. retroflexus and C. draba seedlings. The oil strongly reduced the shoot growth of A. retroflexus seedlings, as well as.
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Claims 10
Claim · model-written summary
Twenty-six compounds were identified in the oil.
- Taxon
- Acroptilon repens
Leuzea repenst0 - Outcome
- 26 compound were identifiede0
- Value
- 26e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Totally 26 compound were identified.”
t0“Acroptilon repens”
Claim · model-written summary
Caryophyllen oxide was a main oil component at 9.6%.
- Taxon
- Acroptilon repens
Leuzea repenst0 - Outcome
- Caryophyllen oxidee0
- Value
- 9.6 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Caryophyllen oxide (9.6 %)”
t0“Acroptilon repens”
Claim · model-written summary
β-cubebene was a main oil component at 9.5%.
- Taxon
- Acroptilon repens
Leuzea repenst0 - Outcome
- β-cubebenee0
- Value
- 9.5 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“β-cubebene (9.5 %)”
t0“Acroptilon repens”
Claim · model-written summary
β-Caeyophyllen was a main oil component at 9.2%.
- Taxon
- Acroptilon repens
Leuzea repenst0 - Outcome
- β-Caeyophyllene0
- Value
- 9.2 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“β-Caeyophyllen (9.2 %)”
t0“Acroptilon repens”
Claim · model-written summary
α-copaen was a main oil component at 8.7%.
- Taxon
- Acroptilon repens
Leuzea repenst0 - Outcome
- α-copaene0
- Value
- 8.7 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“α-copaen (8.7 %)”
t0“Acroptilon repens”
Claim · model-written summary
The oil significantly reduced Amaranthus retroflexus seed germination in a dose-dependent manner.
- Taxon
- Amaranthus retroflexus
Amaranthus retroflexuse0 - Treatment
- essential oil obtained from Acroption repense0
- Outcome
- seed germinatione0
- Direction
- reducede0
- Qualifier
- in a dose dependent mannere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“essential oil obtained from Acroption repens significantly reduced seed germination of Amaranthus retroflexus and Cardaria draba”
e1“in a dose dependent manner”
Claim · model-written summary
The oil significantly reduced Cardaria draba seed germination in a dose-dependent manner.
- Taxon
- Cardaria draba
Lepidium drabae0 - Treatment
- essential oil obtained from Acroption repense0
- Outcome
- seed germinatione0
- Direction
- reducede0
- Qualifier
- in a dose dependent mannere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“essential oil obtained from Acroption repens significantly reduced seed germination of Amaranthus retroflexus and Cardaria draba”
e1“in a dose dependent manner”
Claim · model-written summary
The oil significantly inhibited root growth of A. retroflexus seedlings.
- Taxon
- A. retroflexus
Amaranthus retroflexuse0 - Treatment
- essential oil of A. repense0
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“essential oil of A. repens inhibited significantly the root growth of A. retroflexus and C. draba seedlings”
Claim · model-written summary
The oil significantly inhibited root growth of C. draba seedlings.
- Taxon
- C. draba
Lepidium drabae0 - Treatment
- essential oil of A. repense0
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“essential oil of A. repens inhibited significantly the root growth of A. retroflexus and C. draba seedlings”
Claim · model-written summary
The oil strongly reduced shoot growth of A. retroflexus seedlings.
- Taxon
- A. retroflexus
Amaranthus retroflexuse0 - Treatment
- The oile0
- Outcome
- shoot growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The oil strongly reduced the shoot growth of A. retroflexus seedlings”
The same questions in other papers
botanical · growth · Lepidium draba (hoary cress)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
botanical · growth · Amaranthus retroflexus (redroot amaranth)Positive and negative results
6 papers in the same direction as this paper · 32 in the opposite direction
- positive
- positive
- positive
35 papers more in this group
See all 39 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.