Potential of Rhizobia as Plant Growth-Promoting Rhizobacteria

Vargas, Luciano Kayser; Volpiano, Camila Gazolla; Lisboa, Bruno Brito; Giongo, Adriana; Beneduzi, Anelise; Passaglia, Luciane Maria Pereira

doi:10.1007/978-3-319-59174-2_7

Cited by 40 publications

(34 citation statements)

References 114 publications

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“…This may either be due to ability Note: LSD (0.05) NPK = 0.06, inoculums = 0.08, and NPK × inoculums = 0.12. Values with lowercase letters are statistically significant at P ≤ 0.05. of rhizobia to produce phytohormones such as IAA, mineralize and bind nutrients, or by improving morphological characteristics of inoculated roots, which increase nutrient and water use efficiency as reported by Vargas et al (2010). Significant variation among inoculums for plant N, P, and K concentrations showed that inoculums has varying capacity as the plant growth promoter (PGPR) for nonleguminous crops due to dissimilarity in their adoptability to prevailing soil and climatic conditions.…”

Section: Npk Concentrationmentioning

confidence: 96%

“…Rhizobia can be used as plant-growth-promoting rhizobacteria (PGPR) in nonlegumes (Yanni et al 1997), though they are known for their ability of symbiotic biological nitrogen fixation in legumes (Vargas et al 2010). It enhances the growth and the yield of cereals by production of phytohormones IAA, gibberellins and cytokinins (Phillips and Torrey 1970), siderophore (iron chelator) (Meyer 2000), and enzymes (Yang and Hoffman 1984).…”

Section: Introductionmentioning

confidence: 99%

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Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

et al. 2016

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Experiments were conducted to evaluate the effect of rhizobial inoculums and inorganic fertilizers on NP availability, soil microbial activity, wheat NPK concentration and uptake. These experiments were consisted of two factors, four inoculums (no, lentil, peas, and chickpeas) and two NPK doses (120:90:60 and 96:72:48 kg ha −1 ). Inoculums significantly increased plant total NPK concentration by 39, 57, and 37%, and their uptake by 66, 86, and 56%, respectively. Peas inoculum was most efficient in wheat NPK concentration and uptake. The interactive effect of inoculums and NPK demonstrated that peas and lentil inoculums with 20% less NPK had statistically better role than full NPK without inoculation. AB-DTPA extractible P and mineral N were progressively increased with incubation periods and exhibited significant differences between inoculated and uninoculated treatments during all incubation intervals for NP except at day 7 for N. Peas inoculum showed maximum mean net NP availability of 131.5 and 3.48 mg kg −1 over 56 d of incubation, respectively. Significantly higher cumulative CO 2 of 1429 mg kg −1 with a net increase of 866 mg kg −1 was recorded for pea's inoculums during 12 d of incubation interval. It is concluded that peas rhizobium could be used as a plantgrowth-promoting rhizobacteria for wheat and other cereal crops.Key words: rhizobial inoculums, inorganic fertilizer, availability, nutrient uptake, wheat.

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Section: Npk Concentrationmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

et al. 2016

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“…Rhizobium inoculant resulted in the higher plant height than the other biofertilizers because Rhizobium can increase N uptake by pants (Table 4). According to [14], Rhizobium can increase the N availability in the soil and N absorption by plants and produce phytohormones of IAA and gibberellins which can improve the growth of soybeans. The results of this study showed that the application of Rhizobium resulted in tissue N of 4.89 %, higher than that of the other treatments.…”

Section: The Effect Of Biofertilizers On the Growth And Yield Of Smentioning

confidence: 99%

The Improvement of Yield and Quality of Soybeans in a Coastal Area Using Low Input Technology Based on Biofertilizers

Bertham¹,

Arifin²,

Nusantara³

2019

International Journal on Advanced Science, Engineering and Information Technology

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Indonesia is an archipelagic country, having vast coastal areas which have not been utilized optimally for crop cultivation because their poor soil properties become a limiting factor for plant growth. It is, therefore, necessary to use cultivation technology, such as the use of biofertilizers to overcome this limiting factor. The objective of this study was to determine the appropriate biofertilizers for improving the quality of soybean seeds, the rhizosphere environment, and the soybean yield in a coastal area. The study was conducted in Bengkulu, Indonesia, using Randomized Complete Block Design, with a single factor, namely biofertilizers. Six treatments were applied, namely the addition of Arbuscular Mycorrhizal Fungi (AMF), phosphate-solubilizing fungi (PSF), Rhizobium (R), AMF+PSF, R+AMF, and R+PSF. The results of this study showed that, in general, the inoculation of biofertilizers could increase the yield of soybeans in the coastal area, as indicated by the higher yield of plants in this study than those as described in the literature. The dual inoculation of PSF+AMF resulted in the highest protein content, the largest populations of PSF and AMF, the highest percentage of root colonization of AMF, plant phosphorus concentration and absorption, the weight of seeds per plant and yield. Meanwhile, the highest fat content of seed was found in the plants inoculated with PSF. In coastal soil, the dual application of biofertilizers, namely PSF and AMF, should be done, instead of a single application. Further studies are needed to increase the protein content and to reduce the fat content of soybean seeds.

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“…Inoculation of Bambara groundnut with rhizobia and mycorrhiza was claimed to positively improve the plant biomass (Ngakou et al [14]). The positive effect of inoculum on plant size can be explained by the production of plant growth hormones such as auxin and gibberellins (Vargas et al [22]). In a related research, soybean inoculated with Bradyrhizobium strain was revealed to exhibit greater biomass than non-inoculated plants through AIA production by bacteria symbiont (Afzal et al [23]).…”

Section: Effect Of Cross-inoculation On Plant Size and Biomass At 30 Dapmentioning

confidence: 99%

Influence of Cross-Inoculation on Groundnut and Bambara Groundnut-<i>Rhizobium</i> Symbiosis: Contribution to Plant Growth and Yield in the Field at Sarh (Chad) and Ngaoundere (Cameroon)

Gomoung¹,

Mbaïlao²,

Toukam³

et al. 2017

AJPS

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In the context of sustainable research aiming at improving seed yield and maintaining soil fertility, a study on cross-inoculation of groundnut (Arachis hypogaea L.) and Bambara groundnut (Vigna subterranea (L.) Verd.) with rhizobia strains from four crop legumes was carried out at Sarh (Chad) and Ngaoundere (Cameroon). The experiment was conducted in each site following a randomized complete block design with 6 treatments known as the control, and 5 cross-inoculation formulations (RA, RN, RS, RV and MR), each of which was replicated thrice. Results obtained show that cross-inoculation contributed to the improvement of growth (plant sizes and biomasses) of the two crop legumes, as well as their seed yield at harvest. The enhanced yield expressed in kg/ha varied from 9.83% to 63.73% for groundnut and 72.71% for Bambara groundnut. These findings suggest that groundnut and Bambara groundnut do have a symbiotic affinity with rhizobia from other crop legumes. Whereas Groundnut, Cowpea, Soybean, Bambara groundnut rhizobia (GR, CR, SR, BR) alone, and the fourth in a mixture (RM) could be used to help improving groundnut seed yields; this mixture would not be indicated for intensive cultivation of Bambara groundnut later.

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Potential of Rhizobia as Plant Growth-Promoting Rhizobacteria

Cited by 40 publications

References 114 publications

Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

The Improvement of Yield and Quality of Soybeans in a Coastal Area Using Low Input Technology Based on Biofertilizers

Influence of Cross-Inoculation on Groundnut and Bambara Groundnut-<i>Rhizobium</i> Symbiosis: Contribution to Plant Growth and Yield in the Field at Sarh (Chad) and Ngaoundere (Cameroon)

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Potential of Rhizobia as Plant Growth-Promoting Rhizobacteria

Cited by 40 publications

References 114 publications

Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

Impact of rhizobial inoculum and inorganic fertilizers on nutrients (NPK) availability and uptake in wheat crop

The Improvement of Yield and Quality of Soybeans in a Coastal Area Using Low Input Technology Based on Biofertilizers

Influence of Cross-Inoculation on Groundnut and Bambara Groundnut-&lt;i&gt;Rhizobium&lt;/i&gt; Symbiosis: Contribution to Plant Growth and Yield in the Field at Sarh (Chad) and Ngaoundere (Cameroon)

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Influence of Cross-Inoculation on Groundnut and Bambara Groundnut-<i>Rhizobium</i> Symbiosis: Contribution to Plant Growth and Yield in the Field at Sarh (Chad) and Ngaoundere (Cameroon)