Abstract
Abstract—The purpose of the study was to test the hypothesis that Acer negundo, an alien (invasive) tree species in Eurasia, has allelopathic activity. Using the method of roll culture, two experiments were performed to estimate the effect of water extracts from summer (green) and autumn (colored) leaves of A. negundo, compared to native woody species Sorbus aucuparia, Prunus padus, and Salix caprea, on the early development of Festuca rubra, Sinapis alba, and Trifolium repens. The results failed to prove conclusively that A. negundo leaf extract affects the early development of test plants: its effect was similarly strong as those of extracts from the leaves of native P. padus and S. caprea, while the leaf extract of the native shrub S. aucuparia proved to have a distinct inhibitory effect. On the whole, no evidence was obtained that allelopathic influences of compounds leached from A. negundo leaves may be the actual mechanism accounting for the ecological success of this species in its secondary range.
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Claims 4
Claim · model-written summary
A. negundo leaf extract had an effect on test plants similarly strong to extracts of P. padus.
- Taxon
- Festuca rubra
Festuca rubrae1 - Treatment
- water extracts from summer (green) and autumn (colored) leaves of A. negundoe1
- Interactor
- A. negundo
Acer negundoe1other - Outcome
- effecte0
- Direction
- similarly stronge0
- Comparator
- native P. paduse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its effect was similarly strong as those of extracts from the leaves of native P. padus and S. caprea”
e1“the effect of water extracts from summer (green) and autumn (colored) leaves of A. negundo, compared to native woody species Sorbus aucuparia, Prunus padus, and Salix caprea, on the early development of Festuca rubra, Sinapis alba, and Trifolium repens”
Claim · model-written summary
A. negundo leaf extract had an effect on test plants similarly strong to extracts of S. caprea.
- Taxon
- Festuca rubraFestuca rubrae1
- Treatment
- water extracts from summer (green) and autumn (colored) leaves of A. negundoe1
- Interactor
- A. negundoAcer negundoe1other
- Outcome
- effecte0
- Direction
- similarly stronge0
- Comparator
- S. capreae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its effect was similarly strong as those of extracts from the leaves of native P. padus and S. caprea”
e1“the effect of water extracts from summer (green) and autumn (colored) leaves of A. negundo, compared to native woody species Sorbus aucuparia, Prunus padus, and Salix caprea, on the early development of Festuca rubra, Sinapis alba, and Trifolium repens”
Claim · model-written summary
S. aucuparia leaf extract distinctly inhibited early development of test plants.
- Taxon
- Festuca rubraFestuca rubrae1
- Treatment
- leaf extract of the native shrub S. aucupariae0
- Interactor
- S. aucuparia
Sorbus aucupariae0other - Outcome
- inhibitory effecte0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf extract of the native shrub S. aucuparia proved to have a distinct inhibitory effect”
e1“the effect of water extracts from summer (green) and autumn (colored) leaves of A. negundo, compared to native woody species Sorbus aucuparia, Prunus padus, and Salix caprea, on the early development of Festuca rubra, Sinapis alba, and Trifolium repens”
Claim · model-written summary
The study found no evidence that A. negundo leaf leachates explain its ecological success in the secondary range.
- Taxon
- A. negundoAcer negundoe0
- Outcome
- ecological success of this species in its secondary rangee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no evidence was obtained that allelopathic influences of compounds leached from A. negundo leaves may be the actual mechanism accounting for the ecological success of this species in its secondary range”
e1“the effect of water extracts from summer (green) and autumn (colored) leaves of A. negundo, compared to native woody species Sorbus aucuparia, Prunus padus, and Salix caprea, on the early development of Festuca rubra, Sinapis alba, and Trifolium repens”