N<sub>2</sub> fixation ability of different dry bean genotypes

FaridMehdi,; NavabiAlireza,

doi:10.4141/cjps-2015-084

Cited by 38 publications

(43 citation statements)

References 50 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The number of nodules per plant ranged from 2 to 646, nodule dry weight ranged from 1 to 601 mg per plant, and one nodule dry weight ranged from 0.10 to 13.24 mg (Figure 1). Differences between common bean genotypes for nodulation traits are often observed in greenhouse experiments, such as those reported by Akter et al (2014) and Farid & Navabi (2015), who reported a similar magnitude of variation to that observed in the present work.…”

Section: Resultssupporting

confidence: 91%

“…Akter et al (2014) also found a higher nodulation ability in Mesoamerican than in Andean genotypes, whereas Farid & Navabi (2015) found a greater number of nodules and nodule weights in Andean genotypes; however, nodules were more active in Mesoamerican genotypes. By the magnitude of the mean squares of variation sources estimated in the analysis of variance, it was not possible to state one of these two gene pools as showing larger genotypic variability for nodulation traits.…”

Section: Resultsmentioning

confidence: 97%

See 1 more Smart Citation

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Knupp

Ferreira

Araújo

2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate the genotypic diversity for nodulation in common bean (Phaseolus vulgaris) genotypes of Andean and Mesoamerican gene pools present in the core collections of Embrapa, in Brazil. Evaluations were carried out in two stages: the first one with 879 genotypes, taking the cultivar 'Ouro Negro' as reference; and the second one with 116 genotypes with greater nodulation, to identify those showing stability in nodulation in the two stages. Rhizobium strains were inoculated in pre-germinated common bean seed. Plants received weekly a nutrient solution without N, and nodulation was evaluated 35 days after planting. The percentage of genotypes that exceeded the reference cultivar was 22% for number of nodules, 46% for nodule dry weight, and 33% for one nodule dry weight. The combined analysis of data from the two evaluation phases showed wide differences among genotypes, and significant interactions between genotypes and stages. By the orthogonal contrasts analysis, the Mesoamerican genotypes showed a greater nodulation than the Andean ones. In both stages, twenty-six more stable genotypes were identified, most of them belonging to the Mesoamerican gene pool. There is a large variability in nodulation traits among the common bean genotypes present in the core germplasm collections of Embrapa, which suggests that there are genotypes with improved nodulation.Index terms: Phaseolus vulgaris, biological nitrogen fixation, diversity, germplasm bank. Variabilidade das características de nodulação em feijoeirocomum dos conjuntos gênicos andino e mesoamericanoResumo -O objetivo deste trabalho foi avaliar a diversidade genotípica quanto à nodulação em genótipos de feijoeiro-comum (Phaseolus vulgaris) pertencentes aos conjuntos gênicos andino e mesoamericano presentes nas coleções nucleares da Embrapa, no Brasil. As avaliações foram realizadas em dois estágios: o primeiro com 879 genótipos, tendo-se a cultivar 'Ouro Negro' como referência; e o segundo, com 116 genótipos de maior nodulação, para identificar aqueles com estabilidade de nodulação nos dois estágios. Estirpes de Rhizobium foram inoculadas em sementes de feijão pré-germinadas. As plantas receberam, semanalmente, uma solução nutritiva isenta de N, e a nodulação foi avaliada 35 dias após o plantio. O percentual de genótipos que superaram a cultivar-referência foi de: 22%, quanto ao número de nódulos; 46%, quanto à massa de matéria seca de nódulos; e 33%, quanto à massa de matéria seca de um nódulo. A análise conjunta dos dados das duas fases de avaliação identificou amplas diferenças entre genótipos e interações significativas entre genótipos e estágios. Na análise de contrastes ortogonais, os genótipos mesoamericanos apresentaram maior nodulação do que os andinos. Foram identificados 26 genótipos mais estáveis nos dois estágios, a maioria deles pertencente ao conjunto gênico mesoamericano. Há uma ampla variabilidade em caracteres relacionados à nodulação entre os genótipos de feijoeiro presentes nas coleções nucleares da ...

show abstract

Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 97%

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Knupp

Ferreira

Araújo

2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Conversely, Rodiño et al (2011) found that genotypes with a big nodule phenotype showed a good plant response and more beneficial for plant growth and seed yield. In contrast to the current study, Farid and Navabi (2015) found the common bean genotypes × environment interaction for grain yield production.…”

Section: Discussioncontrasting

confidence: 49%

“…The efficacy of rhizobial strains in nodulating and fixing atmospheric N with common bean varies with both the host genotypes and the Bacterium strains (Aguilar et al 1998;Caballero-Mellado and Martinez-Romero 1999;Farid and Navabi 2015;Michiels et al 1998;Moawad et al 1998). The prevailing environmental conditions significantly shape the diversity and distribution of indigenous rhizobia nodulating common bean (Wang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of genotypes-Rhizobium-environment interaction on nodulation and productivity of common bean (Phaseolus vulgaris L.) in eastern Ethiopia

Argaw

Muleta

2017

Environ Syst Res

View full text Add to dashboard Cite

Background: Effectiveness of Rhizobium inoculation is determined by common bean genotypes. Environmental factors also affect common bean genotypes-Rhizobium-symbiosis. The effect of common bean genotypes-Rhizobium strains-environment interaction on nodulation and common bean production is not well studied. Three genotypes (Dursitu, Gofta, and Kufanzik) and eight selected isolates of common bean nodulating-rhizobia with N-fertilized and control check were used for field experiments at four locations (Babile, Fedis, Haramaya, and Hirna) to evaluate the effect of genotypes-Rhizobium strains-environment interaction on the nodulation, yield and yield traits of common bean. The treatments were laid out in a randomized complete block design with three replications.Results: This study revealed that Rhizobium inoculation, the genotypes, environment and their interaction significantly (P ≤ 0.05) affected all investigated traits of common bean. Common bean genotypes Rhizobium inoculation and experimental locations significantly affected nodule number (NN) and nodule dry weight (NDW). The highest NN and NDW as compared to the uninoculated control across locations were recorded with the genotype Dursitu in all inoculation treatments. However, the result revealed the lowest mean total biomass (TBY) and grain yield (GY) over locations with the same genotype Dursitu. The highest mean grain yields of 3358.89, 3257.82, 1499.25 and 2204.82 kg ha −1 across the treatments were recorded at Haramaya, Hirna, Babile and Fedis sites, respectively, with the genotype Gofta, thereby implying that there was none specificity between common bean genotypes × locations in the study locations of eastern Ethiopia with tested common bean genotypes. None of the tested isolates produced statistically better NN, NDW, TBY, GY and total plant N accumulation consistently in all locations with all tested common bean genotypes, indicating the presence of Rhizobium strains × location specificity. Conclusion: Therefore, the result showed the need for a specific strain of Rhizobium development for common bean production in different locations.

show abstract

“…Graham [13] found that applications as low as 15 kg N ha −1 may reduce rates of N 2 fixation of dry bean by as much as 40%. Compared with other legumes dry bean is not an efficient N 2 fixing species and there appears to be a cultivar specificity in the strain of Rhizobia for nodulation [14]. Low and variable dry bean nodulation and N 2 fixation have been attributed to many factors including, high temperature, drought, soil acidity [15], high soil residual N, a short growing season, seasonal weather variation [16] [17], and differences in growth habit between cultivars [10].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Fertilization and Inoculation Effects on Dry Bean

Buetow¹,

Mehring²,

Kandel³

et al. 2017

View full text Add to dashboard Cite

Dry bean (Phaseolus vulgaris L.) has the ability to form symbiotic relationships with N 2 -fixing bacteria. The research objectives were to evaluate yield and growth differences between dry bean cultivars from black, navy, and pinto market classes, with different N management combinations utilizing urea fertilizer, and two rhizobacteria inoculants. Research was conducted near Park River and Prosper, ND, during 2010, 2012. The experiment was a RCBD 3 × 2 × 3 factorial with four replicates with three dry bean cultivars, two N fertility levels, and two rhizobacteria inoculum sources plus a non-inoculated treatment. The pinto cultivar was also evaluated in 2014. Results showed significant cultivar main effect differences for nodules per plant, vigor, height, and 1000 seed weight. The pinto cultivar had significantly more nodules per root (19) compared with the black (13) and navy cultivars (9). There were not significant differences between inoculant treatments. The fertilizer main effect indicated significant differences for vigor and 1000 seed weight. No significant interactions were detected among factors. Addition of 56 kg N ha −1 resulted in more vigorous plants, but had no effect on seed yield, and reduced 1000 seed weight at harvest at Park River in 2013. Root nodule number was higher with the inoculant treatments with 16.2 and 15.8 nodules per plant compared to the non-inoculated treatment with 10.7 nodules per plant at Park River in 2013. The pinto variety Lariat with an application of 56 kg ha −1 had visually greener plants in 2013 and 2014, except Park River in 2013, but SPAD readings were not following the same trend. Inoculation and application of N fertilizer on dry bean may not be necessary if rhizobacteria are present and soil N levels are sufficiently high but future research on rates, timing, and N source and appropriate strains of Rhizobia inoculant on other pinto varieties is suggested.

show abstract

N₂ fixation ability of different dry bean genotypes

Cited by 38 publications

References 50 publications

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Effect of genotypes-Rhizobium-environment interaction on nodulation and productivity of common bean (Phaseolus vulgaris L.) in eastern Ethiopia

Nitrogen Fertilization and Inoculation Effects on Dry Bean

Contact Info

Product

Resources

About

N2 fixation ability of different dry bean genotypes

Cited by 38 publications

References 50 publications

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Variability of nodulation traits in Andean and Mesoamerican common bean gene pools

Effect of genotypes-Rhizobium-environment interaction on nodulation and productivity of common bean (Phaseolus vulgaris L.) in eastern Ethiopia

Nitrogen Fertilization and Inoculation Effects on Dry Bean

Contact Info

Product

Resources

About

N₂ fixation ability of different dry bean genotypes