Abstract
Hydromorphic soils have a low drainage capacity and are used mainly for the cultivation of irrigated rice. This condition favors the development of anaerobic microorganisms that produce phytotoxic substances. The objective of this study was to evaluate the response of rice mutants to the phytotoxicity caused by butyric acid under anaerobic conditions. The experiment consisted of four treatments arranged in a randomized block design. Plants of 40 families were grown in a hydroponic system and the measured variables were root length and length of aerial part (LAP), number of roots (NR) and root dry matter (RDM) and aerial part dry matter (DMAP). The analysis of variance was performed, the relative performance calculated and linear regressions were fitted. Only the treatment effect for NR and effect of interaction for LAP were not significant. Root length was most affected by the acid and the regressions expressed positive as well as negative effects for acid tolerance in the mutant families.
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Claims 4
Claim · model-written summary
Butyric acid treatment had no significant effect on number of roots.
- Taxon
- rice
Oryza sativat0 - Treatment
- treatmente0
- Outcome
- NRe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice mutant”
e0“Only the treatment effect for NR and effect of interaction for LAP were not significant”
Claim · model-written summary
The treatment interaction for aerial part length was not significant.
- Taxon
- riceOryza sativat0
- Treatment
- treatmente0
- Outcome
- LAPe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice mutant”
e0“Only the treatment effect for NR and effect of interaction for LAP were not significant”
Claim · model-written summary
Root length was the trait most affected by butyric acid.
- Taxon
- riceOryza sativae0
- Treatment
- butyric acide0
- Outcome
- Root lengthe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“response of rice mutants to the phytotoxicity caused by butyric acid”
e1“Root length was most affected by the acid”
Claim · model-written summary
Regressions showed positive and negative effects for acid tolerance among mutant families.
- Taxon
- riceOryza sativat0
- Material
- mutant familiese0
- Outcome
- acid tolerancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice mutant”
e0“regressions expressed positive as well as negative effects for acid tolerance in the mutant families”
The same questions in other papers
butyric acid · growth · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- negative
- 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.