Effect of co-inoculation of Bradyrhizobium japonicum and Pseudomonas fluorescens on growth, yield and nutrient uptake in soybean [Glycine max (L.) Merrill]

Pawar, Pratiksha; Kumbhar, C. T.; Patil, V. S.; Khot, G.G.

doi:10.5958/2454-1761.2018.00009.8

Cited by 15 publications

(9 citation statements)

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“…In addition to Azospirillum spp., several other PGPB have been reported as successful in co-inoculation trials with soybean, as Pseudomonas sp. (Egamberdieva et al 2017; Pawar et al 2018), Actinomyces sp. (Nimnoi et al 2014), Bacillus sp.…”

Section: Inoculants Containing Mixes Of Bacteriamentioning

confidence: 99%

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

2019

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More than one hundred years have passed since the development of the first microbial inoculant for plants. Nowadays, the use of microbial inoculants in agriculture is spread worldwide for different crops and carrying different microorganisms. In the last decades, impressive progress has been achieved in the production, commercialization and use of inoculants. Nowadays, farmers are more receptive to the use of inoculants mainly because high-quality products and multi-purpose elite strains are available at the market, improving yields at low cost in comparison to chemical fertilizers. In the context of a more sustainable agriculture, microbial inoculants also help to mitigate environmental impacts caused by agrochemicals. Challenges rely on the production of microbial inoculants for a broader range of crops, and the expansion of the inoculated area worldwide, in addition to the search for innovative microbial solutions in areas subjected to increasing episodes of environmental stresses. In this review, we explore the world market for inoculants, showing which bacteria are prominent as inoculants in different countries, and we discuss the main research strategies that might contribute to improve the use of microbial inoculants in agriculture.

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Section: Inoculants Containing Mixes Of Bacteriamentioning

confidence: 99%

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

2019

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“…In addition to the use of rhizobia, another strategy that has been employed to increase soybean productivity is the co-inoculation of Bradyrhizobium with other genera of plant growth-promoting rhizobacteria (PGPR), such as Azospirillum (Hungria, Marco & Ricardo, 2015;Zuffo et al, 2016), Bacillus (Mishra et al, 2009;Tonelli, Magallanes-Noguera & Fabra, 2017), Pseudomonas (Egamberdieva, Jabborova & Berg, 2016;Pawar et al, 2018), and Serratia (Bai, 2002;Pan, Vessey & Smith, 2002). These microorganisms act as promoters of plant growth via the production of amino acids, indole acetic acid (IAA), gibberellins, and other polyamines, improving root growth and, consequently, increasing water and nutrient absorption by the plants and generating rhizobia-soybean interaction sites (Schmidt, Messmer & Wilbois, 2015;Yadav et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Zeffa

Fantin

Koltun

et al. 2020

PeerJ

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Background The co-inoculation of soybean with Bradyrhizobium and other plant growth-promoting rhizobacteria (PGPR) is considered a promising technology. However, there has been little quantitative analysis of the effects of this technique on yield variables. In this context, the present study aiming to provide a quantification of the effects of the co-inoculation of Bradyrhizobium and PGPR on the soybean crop using a meta-analysis approach. Methods A total of 42 published articles were examined, all of which considered the effects of co-inoculation of PGPR and Bradyrhizobium on the number of nodules, nodule biomass, root biomass, shoot biomass, shoot nitrogen content, and grain yield of soybean. We also determined whether the genus of the PGPR used as co-inoculant, as well as the experimental conditions, altered the effect size of the PGPR. Results The co-inoculation technology resulted in a significant increase in nodule number (11.40%), nodule biomass (6.47%), root biomass (12.84%), and shoot biomass (6.53%). Despite these positive results, no significant increase was observed in shoot nitrogen content and grain yield. The response of the co-inoculation varied according to the PGPR genus used as co-inoculant, as well as with the experimental conditions. In general, the genera Azospirillum, Bacillus, and Pseudomonas were more effective than Serratia. Overall, the observed increments were more pronounced under pot than that of field conditions. Collectively, this study summarize that co-inoculation improves plant development and increases nodulation, which may be important in overcoming nutritional limitations and potential stresses during the plant growth cycle, even though significant increases in grain yield have not been evidenced by this data meta-analysis.

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“…When phosphorus was applied to the soil (doses 100, 200, and 300 kg ha -1 of P 2 O 5 ), there was no difference (p > 0.05) between inoculated and non-inoculated plants. Differing from these results, Pawar et al (2018), in a study of co-inoculation of soybean and doses of nitrogen fertilizers and phosphates, found an increase in the dry mass of soybean plants when combined doses of phosphorus with bacteria of B. japonicum and Pseudomonas fluorescens. However, the efficiency found in the absence of fertilizer may have been due to the good levels of phosphorus present in the soil used in our study.…”

Section: Resultsmentioning

confidence: 88%

“…Similar to the results of this study, Abitew and Kibret (2017), when studying the combination of B. japonicum, doses of phosphorus and nitrogen, concluded that the combination of bacteria with doses of phosphorus increases the nodulation potential of soybean plants. Bacteria of B. japonicum form a symbiotic relationship with soybean and promote increase in nodulation, which leads to an increase in plant weight (Pawar et al, 2018). Vol.…”

Section: Resultsmentioning

confidence: 99%

Nodulation and Development of Soybean Submitted to Inoculation With Bradyrhizobium japonicum and Phosphorus Doses

Chaves¹,

Leite²,

Silva³

et al. 2018

JAS

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Among the several factors that may influence nodulation and the efficiency of biological nitrogen fixation for soybean plants, nutrient availability is among the most important. This study aimed to evaluate the inoculation with Bradyrhizobium japonicum and doses of phosphorus on the development of soybean in a Vertisol, in Tocantins. The experimental design was completely randomized in a 4 × 2 factorial scheme, with four replications. Four doses of phosphate fertilization (0, 100, 200, and 300 kg ha-1 P2O5) were studied, combined with two inoculation treatments with Bradyrhizobium japonicum (inoculated and not inoculated). The following variables were evaluated: plant height, stem diameter, nodules per plant, dry mass of nodules, dry mass of plant, dry mass of root, number of pods and number of grains per pod. Under greenhouse conditions and soil with good availability of phosphorus, there is no influence of the doses on the inoculation with Bradyrhizobium japonicum. Soils with good availability of phosphorus have low response to the application of phosphate fertilizer.

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Effect of co-inoculation of Bradyrhizobium japonicum and Pseudomonas fluorescens on growth, yield and nutrient uptake in soybean [Glycine max (L.) Merrill]

Cited by 15 publications

References 0 publications

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Nodulation and Development of Soybean Submitted to Inoculation With Bradyrhizobium japonicum and Phosphorus Doses

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