Abstract
ABSTRACT The common bean has been considered to have low biological nitrogen fixation capacity; however, this process can be made more effective with molybdenum (Mo) supplementation. The objective of this study was to evaluate the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars using the 15N isotope dilution technique. The experiment was performed in 2014 in a completely randomized design arranged in a 5 x 3 factorial scheme, corresponding to 5 rates of Mo (control, 40, 80, 120 and 240 g ha-1), the common bean cultivars Aporé, Ouro Negro and NORH-54 (a non-nodulating common bean cultivar), and three replicates. The application of Mo and the inoculation with rhizobia strains contributed to improving nitrogen fixation and grain weight. The cultivar Ouro Negro showed a higher number and weight of nodules and a higher amount of nitrogen derived from the atmosphere than the cultivar Aporé. The biological nitrogen fixation of Aporé was more dependent on the application of Mo. These results indicated that inoculation with Rhizobium strains and Mo supply effectively contributed to biological nitrogen fixation and improving grain production.
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Claims 4
Claim · model-written summary
Molybdenum application and rhizobia inoculation improved nitrogen fixation and grain weight in common bean.
- Taxon
- common bean
Phaseolus vulgarise0 - Treatment
- application of Mo and the inoculation with rhizobia strainse1
- Interactor
- rhizobia strainse1symbiont
- Outcome
- nitrogen fixation and grain weighte1
- Direction
- improvinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars”
e1“The application of Mo and the inoculation with rhizobia strains contributed to improving nitrogen fixation and grain weight.”
Claim · model-written summary
Cultivar Ouro Negro had a higher number and weight of nodules than cultivar Aporé.
- Taxon
- common beanPhaseolus vulgarise0
- Material
- Ouro Negroe2
- Outcome
- number and weight of nodulese2
- Direction
- highere2
- Comparator
- Aporée2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars”
e2“The cultivar Ouro Negro showed a higher number and weight of nodules and a higher amount of nitrogen derived from the atmosphere than the cultivar Aporé.”
Claim · model-written summary
Cultivar Ouro Negro fixed a higher amount of nitrogen derived from the atmosphere than Aporé.
- Taxon
- common beanPhaseolus vulgarise0
- Material
- Ouro Negroe2
- Outcome
- amount of nitrogen derived from the atmospheree2
- Direction
- highere2
- Comparator
- Aporée2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars”
e2“The cultivar Ouro Negro showed a higher number and weight of nodules and a higher amount of nitrogen derived from the atmosphere than the cultivar Aporé.”
Claim · model-written summary
Biological nitrogen fixation of Aporé was more dependent on molybdenum application.
- Taxon
- common beanPhaseolus vulgarise0
- Material
- Aporée3
- Treatment
- application of Moe3
- Outcome
- biological nitrogen fixatione3
- Direction
- more dependente3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars”
e3“The biological nitrogen fixation of Aporé was more dependent on the application of Mo.”
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See all 90 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.