Abstract
A horizontal division of root system was used to study the utilization ability of insoluble phosphate in low-phosphorus-tolerant cultivars(Ltz3) and l ow-phosphorus-sensitive cultivars(Xsbl). The results were as follows: Compare d to treatment with normal level phosphorus of solution in the lower pot, the dry matter weight, root oxidation decreased, MDA content increased in the treatment without phosphorus in whole system, but in the treatment with insoluble phosphat e in quartz in upper pot, the indexes changed more slightly and had higher phosp horus content, which suggested the active mobilization of phosphate of root had functioned; Low-phosphorus-tolerant cultivar had higher dry matter weight, roo t oxidation, phosphorus content and lower MDA content than low-phosphorus-sensit iv e cultivar, indicating its utilization ability of insoluble phosphate was strong er. The differences of each index among treatments with different insoluble phos phate might be related to the different availability of different insoluble phos phate on rice. The ratio of root to shoot increased under low phosphorus or phos phorus deficiency condition, and the lower phosphate availability, the ratio of root to shoot was higher.
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Claims 6
Claim · model-written summary
Phosphorus omission reduced rice dry matter weight and root oxidation and increased MDA content relative to normal phosphorus.
- Taxon
- rice
Oryza sativat0 - Treatment
- without phosphorus in whole systeme0
- Outcome
- dry matter weight, root oxidatione0
- Direction
- decreasede0
- Comparator
- normal level phosphorus of solution in the lower pote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compare d to treatment with normal level phosphorus of solution in the lower pot, the dry matter weight, root oxidation decreased, MDA content increased in the treatment without phosphorus in whole system”
t0“rice”
Claim · model-written summary
MDA content increased under whole-system phosphorus omission.
- Taxon
- riceOryza sativat0
- Treatment
- without phosphorus in whole systeme0
- Outcome
- MDA contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA content increased in the treatment without phosphorus in whole system”
t0“rice”
Claim · model-written summary
Insoluble phosphate in the upper pot moderated index changes and raised phosphorus content.
- Taxon
- riceOryza sativat0
- Treatment
- insoluble phosphat e in quartz in upper pote0
- Outcome
- phosp horus contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the treatment with insoluble phosphat e in quartz in upper pot, the indexes changed more slightly and had higher phosp horus content”
t0“rice”
Claim · model-written summary
The tolerant cultivar had higher dry matter weight, root oxidation, and phosphorus content than the sensitive cultivar.
- Taxon
- riceOryza sativat0
- Material
- Low-phosphorus-tolerant cultivare0
- Outcome
- dry matter weight, roo t oxidation, phosphorus contente0
- Direction
- highere0
- Comparator
- low-phosphorus-sensit iv e cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low-phosphorus-tolerant cultivar had higher dry matter weight, roo t oxidation, phosphorus content and lower MDA content than low-phosphorus-sensit iv e cultivar”
t0“rice”
Claim · model-written summary
The tolerant cultivar had lower MDA content than the sensitive cultivar.
- Taxon
- riceOryza sativat0
- Outcome
- MDA contente0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower MDA content than low-phosphorus-sensit iv e cultivar”
t0“rice”
Claim · model-written summary
Root-to-shoot ratio increased under low phosphorus or phosphorus deficiency and was higher with lower phosphate availability.
- Taxon
- riceOryza sativat0
- Treatment
- low phosphorus or phos phorus deficiency conditione0
- Outcome
- ratio of root to shoote0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of root to shoot increased under low phosphorus or phos phorus deficiency condition, and the lower phosphate availability, the ratio of root to shoot was higher”
t0“rice”
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