Abstract
A solution cultivation experiment was conducted to study the effects of water stress on root growth of rice(Oryza sativa L.)variety Jingyou 402 cultivated in water stress condition simulated with PEG 50 g/L.The results obtained were as follows:Root dry weight,root diameter and active absorption surface area increased,root fresh weight,relative water content,and length decreased in 5-days water stress.Root active absorption surface area of+PEG treatment was on average 6%,and the highest 47% higher than control.It was complicated by the effects of water stress on root total surface areas and fractal dimension.Root total surface area declined during the prophase of water stress,then went up and exceeded that of the control.Root fractal dimension increased more rapidly than the control and dropped markedly on the 5 th day,and then,after water stress was lifted up,rose up quickly to levels close to the control.Root total surface was significantly correlated to root dry weight(r2=0.928 2).A significant correlation between root active absorption surface area and root relative water content(r2=0.951 2)were observed.
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Claims 9
Claim · model-written summary
Five days of water stress increased root dry weight, diameter and active absorption surface area.
- Taxon
- rice
Oryza sativae2 - Treatment
- water stresse1
- Outcome
- Root dry weight,root diameter and active absorption surface areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root dry weight,root diameter and active absorption surface area increased”
e1“in 5-days water stress”
e2“rice(Oryza sativa L.)”
Claim · model-written summary
Five days of water stress decreased root fresh weight, relative water content and length.
- Taxon
- riceOryza sativae1
- Treatment
- water stresse0
- Outcome
- root fresh weight,relative water content,and lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root fresh weight,relative water content,and length decreased in 5-days water stress”
e1“rice(Oryza sativa L.)”
Claim · model-written summary
PEG increased root active absorption surface area by an average of 6% and at most 47% versus control.
- Taxon
- riceOryza sativae1
- Treatment
- +PEG treatmente0
- Outcome
- Root active absorption surface areae0
- Direction
- highere0
- Value
- 6%e0
- Qualifier
- the highest 47%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root active absorption surface area of+PEG treatment was on average 6%,and the highest 47% higher than control”
e1“rice(Oryza sativa L.)”
Claim · model-written summary
Root total surface area declined early in water stress.
- Taxon
- riceOryza sativae1
- Treatment
- water stresse0
- Outcome
- Root total surface areae0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root total surface area declined during the prophase of water stress”
e1“rice(Oryza sativa L.)”
Claim · model-written summary
Root total surface area later exceeded control.
- Taxon
- riceOryza sativae2
- Treatment
- water stresse1
- Outcome
- Root total surface areae1
- Direction
- exceedede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“then went up and exceeded that of the control”
e1“Root total surface area declined during the prophase of water stress”
e2“rice(Oryza sativa L.)”
Claim · model-written summary
Root fractal dimension rose faster than control before falling markedly on day five.
- Taxon
- riceOryza sativae1
- Outcome
- Root fractal dimensione0
- Direction
- increasede0
- Qualifier
- dropped markedly on the 5 th daye0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root fractal dimension increased more rapidly than the control and dropped markedly on the 5 th day”
e1“rice(Oryza sativa L.)”
Claim · model-written summary
After stress removal, root fractal dimension quickly approached control.
- Taxon
- riceOryza sativae2
- Treatment
- water stress was lifted upe0
- Outcome
- Root fractal dimensione1
- Direction
- rose upe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after water stress was lifted up,rose up quickly to levels close to the control”
e1“Root fractal dimension increased more rapidly than the control”
e2“rice(Oryza sativa L.)”
Claim · model-written summary
Root total surface area was significantly correlated with root dry weight.
- Taxon
- riceOryza sativae1
- Organ / stage
- roote0
- Outcome
- Root total surfacee0
- Value
- r2=0.928 2e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root total surface was significantly correlated to root dry weight(r2=0.928 2)”
e1“rice(Oryza sativa L.)”
Claim · model-written summary
Root active absorption surface area was significantly correlated with root relative water content.
- Taxon
- riceOryza sativae1
- Organ / stage
- roote0
- Outcome
- root active absorption surface areae0
- Value
- r2=0.951 2e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant correlation between root active absorption surface area and root relative water content(r2=0.951 2)were observed”
e1“rice(Oryza sativa L.)”
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See all 282 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.