Abstract
Bidens pilosa L.,an invasion exotic weed,has caused substantial damage to ecosystem in southern China,which is also an acid precipitation area.Effects of simulated acid rain(SAR) with different pH on the seed germination,seedling growth and allelopathic potential of B.pilosa were evaluated in laboratory.The results showed that the germination rate of B.pilosa was increased in SAR treatment at pH 5.6 and 4.0.SAR at pH 4.0 significantly stimulated the seedling growth of B.pilosa,while SAR at pH 2.5 inhibited the seedling growth.SAR at pH 4.0 and 2.5 enhanced the allelopathic potential of aqueous leaf leachates of B.pilosa on the tested plants.These results indicate that B.pilosa can adapt the acid precipitation in southern China,and acid rain might accelerate further invasion of B.pilosa through growth stimulation and enhanced allelopathic potential.
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Claims 7
Claim · model-written summary
Simulated acid rain at pH 5.6 increased germination rate.
- Taxon
- Bidens pilosa L.
Bidens pilosat0 - Treatment
- SAR treatment at pH 5.6e0
- Outcome
- germination ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination rate of B.pilosa was increased in SAR treatment at pH 5.6 and 4.0”
t0“Bidens pilosa L.”
Claim · model-written summary
Simulated acid rain at pH 4.0 increased germination rate.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- 4.0e0
- Outcome
- germination ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination rate of B.pilosa was increased in SAR treatment at pH 5.6 and 4.0”
t0“Bidens pilosa L.”
Claim · model-written summary
Simulated acid rain at pH 4.0 significantly stimulated seedling growth.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- SAR at pH 4.0e0
- Outcome
- seedling growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SAR at pH 4.0 significantly stimulated the seedling growth of B.pilosa”
t0“Bidens pilosa L.”
Claim · model-written summary
Simulated acid rain at pH 2.5 inhibited seedling growth.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- SAR at pH 2.5e0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SAR at pH 2.5 inhibited the seedling growth”
t0“Bidens pilosa L.”
Claim · model-written summary
Simulated acid rain at pH 4.0 enhanced the allelopathic potential of leaf leachates.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- SAR at pH 4.0e0
- Outcome
- allelopathic potential of aqueous leaf leachatese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SAR at pH 4.0 and 2.5 enhanced the allelopathic potential of aqueous leaf leachates of B.pilosa on the tested plants”
t0“Bidens pilosa L.”
Claim · model-written summary
Simulated acid rain at pH 2.5 enhanced the allelopathic potential of leaf leachates.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- 2.5e0
- Outcome
- allelopathic potential of aqueous leaf leachatese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SAR at pH 4.0 and 2.5 enhanced the allelopathic potential of aqueous leaf leachates of B.pilosa on the tested plants”
t0“Bidens pilosa L.”
Claim · model-written summary
The authors infer that acid rain may accelerate Bidens pilosa invasion through growth and allelopathy.
- Taxon
- Bidens pilosa L.Bidens pilosat0
- Treatment
- acid raine0
- Outcome
- further invasione0
- Qualifier
- through growth stimulation and enhanced allelopathic potentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acid rain might accelerate further invasion of B.pilosa through growth stimulation and enhanced allelopathic potential”
t0“Bidens pilosa L.”
The same questions in other papers
ph · growth · Bidens pilosa (bur-marigold)Positive and negative results
1 in the opposite direction
- negative
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.