scholarly journals Natural rhizobial diversity helps to reveal genes and QTLs associated with biological nitrogen fixation in common bean

2017 ◽  
Vol 3 (3) ◽  
pp. 435-466 ◽  
Author(s):  
Olaya Muñoz-Azcarate ◽  
◽  
Ana M González ◽  
Marta Santalla
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
Rhizobial Diversity ◽  
Biological Nitrogen

scholarly journals Molybdenum supply and biological fixation of nitrogen by two Brazilian common bean cultivars

2017 ◽  
Vol 21 (2) ◽  
pp. 100-105 ◽  
Author(s):  
Alinne da Silva ◽  
◽  
Vinícius I. Franzini ◽  
Cristiano D. Piccolla ◽  
Takashi Muraoka ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
Biological Fixation ◽  
Randomized Design ◽  
Rhizobium Strains ◽  
Common Bean Cultivar ◽  
The Common ◽  
Biological Nitrogen ◽  
15N Isotope Dilution Technique

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.

scholarly journals Multivariate analysis and determination of the best indirect selection criteria to genetic improvement the biological nitrogen fixation ability in common bean genotypes (Phaseolus vulgaris L.)

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 279-284 ◽  
Author(s):  
Reza Golparvar
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
Genetic Improvement ◽  
Selection Criteria ◽  
Block Design ◽  
Indirect Selection ◽  
Shoot Number ◽  
Biological Yield ◽  
Biological Nitrogen

In order to determine the best indirect selection criteria for genetic improvement of biological nitrogen fixation, sixty four common bean genotypes were cultivated in two randomized complete block design. Genotypes were inoculated with bacteria Rhizobium legominosarum biovar Phaseoli isolate L-109 only in one of the experiments. The second experiment was considered as check for the first. Correlation analysis showed positive and highly significant correlation of majority of the traits with percent of nitrogen fixation. Step-wise regression designated that traits percent of total nitrogen of shoot, number of nodule per plant and biological yield accounted for 92.3 percent of variation exist in percent of nitrogen fixation. Path analysis indicated that these traits have direct and positive effect on percent of nitrogen fixation. Hence, these traits are promising indirect selection criteria for genetic improvement of nitrogen fixation capability in common bean genotypes especially in early generations.

Differences in contribution of biological nitrogen fixation to yield performance of common bean cultivars as assessed by the 15N natural abundance technique

2020 ◽  
Vol 454 (1-2) ◽  
pp. 327-341
Author(s):  
Rafael Sanches Pacheco ◽  
Robert Michael Boddey ◽  
Bruno José Rodrigues Alves ◽  
Enderson Petrônio de Brito Ferreira ◽  
Rosângela Straliotto ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
15N Natural Abundance ◽  
Natural Abundance ◽  
Yield Performance ◽  
Biological Nitrogen

scholarly journals BIOLOGICAL NITROGEN FIXATION AND ITS EFFECTS ON THE PHYSIOLOGICAL POTENTIAL OF COMMON BEAN SEEDS

2014 ◽  
Vol 89 (2) ◽  
pp. 156
Author(s):  
Vitor Henrique Vaz Mondo ◽  
Enderson Petrônio de Brito Ferreira ◽  
Nand Kumar Fageria ◽  
Marco Túlio Machado Costa
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Biological Nitrogen Fixation ◽  
Biological Nitrogen
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