Abstract
Soil nitrogen effects on the growth characteristics of alien invasive plant Bidens pilosa L.were studied by greenhouse pot experiment.The result indicated that added definite soil nitrogen were favorable to increase the number of leaf and branch,total leaf area(TLA),total biomass and relative growth rate(RGR)of B.pilosa.In the meantime,increased soil nitrogen could facilitate the weed assign more material to the organs on the ground,especially enhance the flower biomass rate significantly,and decrease the material assigned to the roots under ground.Phenotypic plasticity index indicated that in the case of morphological parameters,biomass allocation parameters and reproduction organ more phenotypic plasticity the weed presented on response to the soil nitrogen.All results above demonstrated that the weed B.pilosa had more grater invasion and adaptability to the soil nitrogen,which suggested that definite attention should be paid to the work of the weed prevention and management.
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Claims 6
Claim · model-written summary
Added soil nitrogen increased leaf and branch number, total leaf area, biomass and relative growth rate.
- Taxon
- B.pilosa
Bidens pilosae0 - Treatment
- added definite soil nitrogene0
- Outcome
- number of leaf and branch,total leaf area(TLA),total biomass and relative growth rate(RGR)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“added definite soil nitrogen were favorable to increase the number of leaf and branch,total leaf area(TLA),total biomass and relative growth rate(RGR)of B.pilosa”
Claim · model-written summary
More soil nitrogen increased aboveground allocation, especially flower biomass rate.
Not reportedComparator
Verbatim
e0“increased soil nitrogen could facilitate the weed assign more material to the organs on the ground,especially enhance the flower biomass rate significantly”
Claim · model-written summary
More soil nitrogen reduced allocation to roots.
- Taxon
- the weede0
- Treatment
- increased soil nitrogene0
- Outcome
- material assigned to the rootse0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“increased soil nitrogen could facilitate the weed assign more material to the organs on the ground,especially enhance the flower biomass rate significantly,and decrease the material assigned to the roots under ground”
Claim · model-written summary
Morphological, biomass allocation and reproductive parameters displayed phenotypic plasticity in response to nitrogen.
Verbatim
e0“morphological parameters,biomass allocation parameters and reproduction organ more phenotypic plasticity the weed presented on response to the soil nitrogen”
Claim · model-written summary
The authors infer high invasiveness and adaptability to soil nitrogen.
- Taxon
- B.pilosaBidens pilosae0
- Outcome
- invasion and adaptability to the soil nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the weed B.pilosa had more grater invasion and adaptability to the soil nitrogen”
Claim · model-written summary
The authors recommend attention to weed prevention and management.
Verbatim
e0“definite attention should be paid to the work of the weed prevention and management”
t0“Bidens piolsa L.”
The same questions in other papers
nitrogen · growth · Bidens pilosa (bur-marigold)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.