Abstract
Salinity induced changes in root length and weight under salt tolerant condition. To examine the effect of different degrees of salinity on the root growth of rice, a total of 127 rice genotypes including mostly traditional, cultivated in the coastal regions of Bangladesh and some improved genotypes were used in the study. The study was conducted in petri dish providing 0, 6, 9, 12 and 15 dS m-1 (deci Siemens) salinity. Based on the performances, genotypes were scored and grouped as highly tolerant (score 1), tolerant (score 3), moderately tolerant (score 5), susceptible (score 7) and highly susceptible (score 9). Salinity stress reduced the root length and weight of rice genotypes. But the extent of root length and weight, varied with genotypes and levels of salinity. Generally in control condition root length and weight was found higher and it gradually decreased with increasing salt concentration. Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9. Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible. Based on the score, the relationship between salinity level and tolerances of the different rice genotypes can be understood.J. Environ. Sci. & Natural Resources, 10(1): 45-53 2017
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Claims 13
Claim · model-written summary
Salinity reduced rice root length and weight.
- Taxon
- rice
Oryza sativae0 - Treatment
- Salinity stresse0
- Outcome
- root length and weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity stress reduced the root length and weight of rice genotypes.”
Claim · model-written summary
Root length and weight varied with genotype and salinity level.
- Taxon
- RiceOryza sativat0
- Material
- genotypese0
- Treatment
- levels of salinitye0
- Outcome
- root length and weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the extent of root length and weight, varied with genotypes and levels of salinity.”
t0“Rice”
Claim · model-written summary
Root length and weight declined as salt concentration rose.
- Taxon
- RiceOryza sativat0
- Treatment
- increasing salt concentratione0
- Outcome
- root length and weighte0
- Direction
- decreasede0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Generally in control condition root length and weight was found higher and it gradually decreased with increasing salt concentration.”
t0“Rice”
Claim · model-written summary
Eight genotypes scored 1 on root dry weight at 15 dS m-1.
- Taxon
- RiceOryza sativat0
- Treatment
- 15 dS m-1 salinitye0
- Outcome
- root dry weighte0
- Value
- 8 genotypese0
- Qualifier
- scored 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9.”
t0“Rice”
Claim · model-written summary
Twenty-eight genotypes scored 3 on root dry weight at 15 dS m-1.
- Taxon
- RiceOryza sativat0
- Treatment
- 15 dS m-1 salinitye0
- Outcome
- root dry weighte0
- Value
- 28e0
- Qualifier
- scored 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9.”
t0“Rice”
Claim · model-written summary
Forty genotypes scored 5 on root dry weight at 15 dS m-1.
- Taxon
- RiceOryza sativat0
- Treatment
- 15 dS m-1 salinitye0
- Outcome
- root dry weighte0
- Value
- 40e0
- Qualifier
- scored 5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9.”
t0“Rice”
Claim · model-written summary
Thirty-five genotypes scored 7 on root dry weight at 15 dS m-1.
- Taxon
- RiceOryza sativat0
- Treatment
- 15 dS m-1 salinitye0
- Outcome
- root dry weighte0
- Value
- 35e0
- Qualifier
- scored 7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9.”
t0“Rice”
Claim · model-written summary
Sixteen genotypes scored 9 on root dry weight at 15 dS m-1.
- Taxon
- RiceOryza sativat0
- Treatment
- 15 dS m-1 salinitye0
- Outcome
- root dry weighte0
- Value
- 16e0
- Qualifier
- scored 9e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on decrease of root dry weight at 15 dS m-1 salinity, 8 genotypes scored 1, 28 scored 3, 40 scored 5, 35 scored 7, and 16 scored 9.”
t0“Rice”
Claim · model-written summary
Fourteen genotypes were highly tolerant by root length.
- Taxon
- RiceOryza sativat0
- Outcome
- highly tolerante0
- Value
- 14 genotypese0
- Qualifier
- root lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible.”
t0“Rice”
Claim · model-written summary
Eighteen genotypes were tolerant by root length.
- Taxon
- RiceOryza sativat0
- Outcome
- tolerante0
- Value
- 18e0
- Qualifier
- root lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible.”
t0“Rice”
Claim · model-written summary
Twenty-seven genotypes were moderately tolerant by root length.
- Taxon
- RiceOryza sativat0
- Outcome
- moderately tolerante0
- Value
- 27e0
- Qualifier
- root lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible.”
t0“Rice”
Claim · model-written summary
Thirty-eight genotypes were susceptible by root length.
- Taxon
- RiceOryza sativat0
- Outcome
- susceptiblee0
- Value
- 38e0
- Qualifier
- root lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible.”
t0“Rice”
Claim · model-written summary
Thirty genotypes were highly susceptible by root length.
- Taxon
- RiceOryza sativat0
- Outcome
- highly susceptiblee0
- Value
- 30e0
- Qualifier
- root lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regarding root length, 14 genotypes were found highly tolerant, 18 were tolerant, 27 moderately tolerant, 38 susceptible and 30 were highly susceptible.”
t0“Rice”
The same questions in other papers
salinity · growth · Oryza sativa (rice)Positive and negative results
258 papers in the same direction as this paper · 37 in the opposite direction
- negative
- positive
- positive
292 papers more in this group
See all 296 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.