Abstract
Salinity is one of the major environmental threats to agriculture. In particular, soil salinization is a major limiting factor of symbiotic nitrogen fixation for legume growth. The adverse effects of salinity on the rhizobial symbiosis of common bean genotypes CocoT and Flamingo and the subsequent photosynthesis and plant-growth were investigated in glasshouse. Common bean plants were grown in sterilized sand and irrigated with salt concentrations of 2, 4, 6, 8 and 10 gl-1, respectively and inoculated with rhizobial strains of Rhizobium tropici CIAT899 or Rhizobium etli 12a3. Nodule number and biomass, shoot content of nitrogen and chlorophyll were decreased by increasing salinity with all used symbiosis, whereas, the proline accumulation increased. The interaction between symbioses and salt levels for all parameters was highly significant. Overall, Flamingo inoculated with R. etli had the highest plant growth and nitrogen fixation under salinity. It is concluded that Flamingo has potential for application in field conditions exposed to soil salinization or irrigated with saline water, unless native rhizobial would interact negatively.
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Claims 7
Claim · model-written summary
Increasing salinity decreased nodule number and biomass across the symbioses.
- Taxon
- common bean
Phaseolus vulgarist0 - Treatment
- increasing salinitye0
- Outcome
- Nodule number and biomasse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodule number and biomass, shoot content of nitrogen and chlorophyll were decreased by increasing salinity with all used symbiosis”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
Increasing salinity decreased shoot nitrogen and chlorophyll content across the symbioses.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- increasing salinitye0
- Outcome
- shoot content of nitrogen and chlorophylle0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nodule number and biomass, shoot content of nitrogen and chlorophyll were decreased by increasing salinity with all used symbiosis”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
Proline accumulation increased under increasing salinity.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- increasing salinitye1
- Outcome
- proline accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas, the proline accumulation increased”
e1“Nodule number and biomass, shoot content of nitrogen and chlorophyll were decreased by increasing salinity with all used symbiosis”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
The interaction between symbioses and salt levels was highly significant for all measured parameters.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- salt levelse0
- Interactor
- symbiosese0symbiont
- Outcome
- all parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between symbioses and salt levels for all parameters was highly significant.”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
Flamingo inoculated with R. etli had the highest growth under salinity.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Flamingoe0
- Treatment
- inoculated with R. etlie0
- Interactor
- R. etliRhizobium etlie0symbiont
- Outcome
- plant growthe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall, Flamingo inoculated with R. etli had the highest plant growth and nitrogen fixation under salinity.”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
Flamingo inoculated with R. etli had the highest nitrogen fixation under salinity.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Flamingoe0
- Treatment
- inoculated with R. etlie0
- Interactor
- R. etliRhizobium etlie0symbiont
- Outcome
- nitrogen fixatione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall, Flamingo inoculated with R. etli had the highest plant growth and nitrogen fixation under salinity.”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
Claim · model-written summary
Flamingo has potential for saline field conditions unless native rhizobia interact negatively.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Flamingoe0
- Outcome
- application in field conditions exposed to soil salinization or irrigated with saline watere0
- Qualifier
- unless native rhizobial would interact negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flamingo has potential for application in field conditions exposed to soil salinization or irrigated with saline water, unless native rhizobial would interact negatively.”
t0“Flamingo is a new common bean (Phaseolus vulgaris L.) genotype with tolerance of symbiotic nitrogen fixation to moderate salinity”
The same questions in other papers
salinity · physiology: pigments · Phaseolus vulgaris (common bean)Results differ
18 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 papers →salinity · symbiosis · Phaseolus vulgaris (common bean)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 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.