Abstract
[Objective] The research aimed to explore the allelopathy of invasive plant——Ageratum conyzoide. L and the influence on crop growth. [Method] The aqueous extracts from Ageratum conyzoide L. with different concentrations on the seed germination and seedling growth of Brassica oleracea L. and Brassica campestris L. were studied by the method of laboratory germination. [Result] Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration. It showed same influencing pattern on root length,bud length,root / shoot rates as seed germination speed,while it stimulated the stem and root fresh weight. In contrast,it had more influence on Brassica oleracea L,and the root was more sensitive to aqueous extracts from Ageratum conyzoide. L than the overground part. [Conclusion] The aqueous extracts from Ageratum conyzoide L. on the seed germination and seedling growth had different degrees of allelopathy.
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Claims 8
Claim · model-written summary
Ageratum extracts inhibited Brassica oleracea germination rate and index more at higher concentrations.
- Taxon
- Brassica oleracea L.
Brassica oleraceae0 - Treatment
- aqueous extracts from Ageratum conyzoide L.e0
- Interactor
- Ageratum conyzoide L.e0other
- Outcome
- germination rate,germination indexe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts inhibited Brassica campestris germination rate and index more at higher concentrations.
- Taxon
- Brassica campestris L.
.jpg?width=60)
Brassica rapa subsp. oleiferae0 - Treatment
- aqueous extracts from Ageratum conyzoide L.e0
- Interactor
- Ageratum conyzoide L.e0other
- Outcome
- germination rate,germination indexe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts affected Brassica oleracea root length, bud length and root to shoot rate in the same pattern as germination speed.
- Taxon
- Brassica oleracea L.Brassica oleraceae1
- Treatment
- aqueous extracts from Ageratum conyzoide L.e1
- Interactor
- Ageratum conyzoide L.e1other
- Outcome
- root length,bud length,root / shoot ratese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It showed same influencing pattern on root length,bud length,root / shoot rates as seed germination speed”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts affected Brassica campestris root length, bud length and root to shoot rate in the same pattern as germination speed.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- aqueous extracts from Ageratum conyzoide L.e1
- Interactor
- Ageratum conyzoide L.e1other
- Outcome
- root length,bud length,root / shoot ratese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It showed same influencing pattern on root length,bud length,root / shoot rates as seed germination speed”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts stimulated Brassica oleracea stem and root fresh weight.
- Taxon
- Brassica oleracea L.Brassica oleraceae1
- Treatment
- aqueous extracts from Ageratum conyzoide L.e1
- Interactor
- Ageratum conyzoide L.e1other
- Outcome
- stem and root fresh weighte0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it stimulated the stem and root fresh weight”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts stimulated Brassica campestris stem and root fresh weight.
- Taxon
- Brassica campestris L.Brassica rapa subsp. oleiferae1
- Treatment
- aqueous extracts from Ageratum conyzoide L.e1
- Interactor
- Ageratum conyzoide L.e1other
- Outcome
- stem and root fresh weighte0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it stimulated the stem and root fresh weight”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Ageratum extracts had a greater influence on Brassica oleracea than Brassica campestris.
- Taxon
- Brassica oleracea LBrassica oleraceae0
- Interactor
- Ageratum conyzoide L.e1other
- Outcome
- influencee0
- Direction
- moree0
- Comparator
- Brassica campestris L.e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it had more influence on Brassica oleracea L”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
Claim · model-written summary
Roots were more sensitive to Ageratum extracts than aboveground tissue.
- Taxon
- Brassica oleracea L. and Brassica campestris L.Brassica oleraceaBrassica rapa subsp. oleiferae1
- Organ / stage
- roote0
- Interactor
- Ageratum conyzoide. Le0other
- Outcome
- sensitivee0
- Direction
- moree0
- Comparator
- overground parte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root was more sensitive to aqueous extracts from Ageratum conyzoide. L than the overground part”
e1“Allelopathy of aqueous extracts from Ageratum conyzoide L. could inhibit germination rate,germination index of Brassica oleracea L. and Brassica campestris L. seed,and its effects increased with the increase of extracts concentration”
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See all 90 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.