Abstract
In this paper the effects of elevated CO2 and different nitrogen supply on root morphology of rice were examined. The results showed that CO2 enrichment significantly increased root biomass during the whole growth season. CO2 and Nitrogen treat- ments changed root morphology. Root growth showed a positive response to CO2 enrichment, especially in the heading. Root length, number of root tips, total root surface increased at low nitrogen, while root width, number of adventitious roots increased at normal nitrogen. R/S (root/shoot) increased significantly under CO2 enrichment, especially at low nitrogen (P0.001). The ratio of R/S de- creased with increasing growth of rice,owing to faster increase of shoot biomass than the root at later stages.
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Claims 7
Claim · model-written summary
CO2 enrichment significantly increased root biomass throughout growth.
- Taxon
- rice
Oryza sativat0 - Treatment
- CO2 enrichmente0
- Outcome
- root biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 enrichment significantly increased root biomass during the whole growth season”
t0“rice”
Claim · model-written summary
CO2 and nitrogen treatments changed root morphology.
- Taxon
- riceOryza sativat0
- Treatment
- CO2 and Nitrogen treat- mentse0
- Outcome
- root morphologye0
- Direction
- changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO2 and Nitrogen treat- ments changed root morphology”
t0“rice”
Claim · model-written summary
Root growth responded positively to CO2 enrichment, especially at heading.
- Taxon
- riceOryza sativat0
- Organ / stage
- headinge0
- Treatment
- CO2 enrichmente0
- Outcome
- Root growthe0
- Direction
- positive responsee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root growth showed a positive response to CO2 enrichment, especially in the heading”
t0“rice”
Claim · model-written summary
At low nitrogen, root length, tip number and surface increased.
- Taxon
- riceOryza sativat0
- Treatment
- low nitrogene0
- Outcome
- Root length, number of root tips, total root surfacee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root length, number of root tips, total root surface increased at low nitrogen”
t0“rice”
Claim · model-written summary
At normal nitrogen, root width and adventitious root number increased.
- Taxon
- riceOryza sativat0
- Treatment
- normal nitrogene0
- Outcome
- root width, number of adventitious rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root width, number of adventitious roots increased at normal nitrogen”
t0“rice”
Claim · model-written summary
CO2 enrichment significantly increased the root/shoot ratio, especially at low nitrogen.
- Taxon
- riceOryza sativat0
- Treatment
- CO2 enrichmente0
- Outcome
- R/S (root/shoot)e0
- Direction
- increasede0
- Qualifier
- especially at low nitrogene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R/S (root/shoot) increased significantly under CO2 enrichment, especially at low nitrogen (P0.001)”
t0“rice”
Claim · model-written summary
The root/shoot ratio declined as rice grew.
- Taxon
- riceOryza sativae0
- Organ / stage
- growthe0
- Outcome
- ratio of R/Se0
- Direction
- de- creasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of R/S de- creased with increasing growth of rice”
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co2 · growth · Oryza sativa (rice)Positive and negative results
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- positive
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See all 124 papers →nitrogen · growth · Oryza sativa (rice)Positive and negative results
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See all 511 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.