Maize response to inoculation with strains of plant growth-promoting bactéria

Dartora, Janaína; Guimarães, Vandeir Francisco; Menezes, Cid Renan Jacques; Freiberger, Mariângela Brito; Castoldi, Gustavo; Gonçalves, Edilaine. D. V.

doi:10.1590/1807-1929/agriambi.v20n7p606-611

Cited by 10 publications

(10 citation statements)

References 13 publications

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“…Bécquer et al (2011) and Hahn et al (2013) also observed maize growth promotion by rhizobia, but in the absence of N fertilization. On the other hand, Dartora et al (2016) reported that the use of Rhizobium sp. associated with 30 kg ha -1 of N at maize sowing resulted in yield equivalent to that obtained with the application of 160 kg ha -1 of N fertilizer.…”

Section: Resultsmentioning

confidence: 99%

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Maize growth in response to Azospirillum brasilense, Rhizobium tropici, molybdenum and nitrogen

Picazevicz

Kusdra

Moreno

2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this research was to evaluate the effect of Azospirillum brasilense, Rhizobium tropici, nitrogen (N) and molybdenum (Mo) fertilization on maize growth. The experiment was carried out in a greenhouse from October to November 2015, in a completely randomized design, in 2 x 2 x 2 x 5 factorial scheme, with 5 replicates, corresponding to the absence and presence of Azospirillum brasilense, Rhizobium tropici, N (30 kg ha -1 ) and five Mo doses (0, 7.5, 15.0, 22.5 and 30.0 g ha -1 ). The analyzed variables were: plant height, basal stem diameter, dry biomass of shoots, roots, total and N accumulated in the shoots. There was double or triple interaction between N fertilization, Azospirillum brasilense and Rhizobium tropici for the evaluated variables. However, isolated and/or combined effect of Mo was not observed. Seed inoculation with Azospirillum brasilense as well as their coinoculation with Rhizobium tropici in the absence of N fertilization was efficient to increase plant growth. Soil N fertilization at sowing was less efficient in promoting plant growth than when it was combined with seed inoculation with Rhizobium tropici.Crescimento do milho em resposta a Azospirillum brasilense, Rhizobium tropici, molibdênio e nitrogênio R E S U M O Objetivou-se nesta pesquisa avaliar o efeito de Azospirillum brasilense, Rhizobium tropici, nitrogênio e molibdênio no crescimento do milho. O experimento foi realizado em casa de vegetação no período de outubro a novembro de 2015, no delineamento inteiramente casualizado em esquema fatorial 2 x 2 x 2 x 5, com 5 repetições considerando a ausência e a presença de Azospirillum brasilense, Rhizobium tropici, nitrogênio (30 kg ha -1 ), além de cinco doses de molibdênio (0; 7,5; 15,0; 22,5 e 30,0 g ha -1 ). As variáveis avaliadas foram: altura, diâmetro basal do colmo, massas secas da parte aérea, raízes, total e nitrogênio acumulado na parte aérea. Verificou-se interação dupla ou tripla entre a adubação nitrogenada, Azospirillum brasilense e Rhizobium tropici para as variáveis avaliadas. Todavia, não foi observado efeito isolado e/ou combinado do molibdênio. Tanto a inoculação das sementes com Azospirillum brasiliense como a coinoculação deste com Rhizobium tropici na ausência de nitrogênio se mostraram eficientes para aumentar o crescimento das plantas. A adubação nitrogenada do solo na semeadura foi menos eficiente em promover o crescimento das plantas do que quando esta foi combinada com a inoculação das sementes com Rhizobium tropici.

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Section: Resultsmentioning

confidence: 99%

“…Their isolate use (Mehboob et al, 2012) or combined with other rhizobacteria (Hahn et al, 2013) and with N fertilization (Dartora et al, 2016) has increased maize growth and production, indicating that the co-inoculation of microorganisms associated with chemical nutrients can be a promising technique.…”

Section: Introductionmentioning

confidence: 99%

Maize growth in response to Azospirillum brasilense, Rhizobium tropici, molybdenum and nitrogen

Picazevicz

Kusdra

Moreno

2017

Rev. bras. eng. agríc. ambient.

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“…In maize crops, the use of Azospirillum brasilense and Bacillus subtilis has contributed to reducing the amount of industrial nitrogen fertilizer used as topdressing by 50 to 80% and heightened its effect when applied only at sowing (Lima et al, 2011;Dartora et al, 2016;Garcia et al, 2017;Mumbach et al, 2017;Picazevicz et al, 2017). These rhizobacteria can enhance zinc availability to crops by solubilizing this micronutrient, which is easily adsorbed by the soil, making it unavailable to plants before root development (Goteti et al, 2013;Mumtaz et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Rhizobacteria inoculation in maize associated with nitrogen and zinc fertilization at sowing

Moreno

Kusdra

Picazevicz

2021

Rev. bras. eng. agríc. ambient.

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Rhizobacteria have a wide range of plant growth-promoting mechanisms of action, making them an alternative and/or complementary biological input for chemical fertilizers. In this respect, the present study aimed to assess growth and nitrogen accumulation in maize plants as a function of Azospirillum brasilense, Bacillus subtilis, zinc and nitrogen application at sowing. The experiment with the ‘AL Bandeirante’ maize variety was conducted in a greenhouse, using a completely randomized design. The treatments were arranged in a 2 x 2 x 2 x 2 factorial scheme, with six repetitions, considering the presence and absence of Azospirillum brasilense (5 g kg-1), Bacillus subtilis (5 mL kg-1) and zinc (20 g kg-1) in the seeds and addition or not of nitrogen (30 kg ha-1) to the soil. The variables assessed were plant height, stem diameter, leaf, stem, shoot, root and total dry weight, and shoot nitrogen content. Nitrogen fertilization in the absence of zinc increased shoot and total dry weight as well as shoot nitrogen content. Zinc applied to the seeds improved the total and stem dry weight of maize plants in the absence of Bacillus subtilis. Inoculation with Azospirillum brasilense and Bacillus subtilis increased the stem diameter and shoot nitrogen content of maize plants when nitrogen fertilization was not performed at sowing. There was no isolated or interaction effect between factors for plant height and root dry weight.

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“…While breeding for adaptation to either saline and/or P deficient soils has the potential to raise yield potential [ 6 ], the yield can also be enhanced by exploiting the ability of plant growth-promoting rhizobacteria (PGPR) to solubilize phosphate in the soil and to mitigate salinity stress [ 7 ]. Some of these bacteria are also known to produce a number of key phytohormones, notably auxin (indole-3-acetic acid, IAA), cytokinins (CKs), abscisic acid (ABA), and gibberellins (GAs), to convert atmospheric nitrogen into a form assimilable by plants and to enhance tolerance against certain pests [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

The Response of Maize to Inoculation with Arthrobacter sp. and Bacillus sp. in Phosphorus-Deficient, Salinity-Affected Soil

et al. 2020

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Salinity and phosphorus (P) deficiency are among the most serious soil factors constraining crop productivity. A proposed strategy for alleviating these stresses is supporting plants by inoculation with growth-promoting rhizobacteria (PGPR). Here, a comparison of the ability of two maize composite and two F1 hybrid varieties to tolerate a P deficiency in either a saline or a non-saline environment showed that the uptake of nutrients by all four entries was significantly reduced by the imposition of both soil salinity and P deficiency, and that their growth was compromised to a similar extent. Subsequently, the ameliorative effect of inoculation with three strains of either Arthrobacter sp. or Bacillus sp. in an environment, which suffered simultaneously from salinity and P deficiency, was investigated. Inoculation with each of the strains was found to limit the plants’ uptake of sodium cations, to increase their uptake of potassium cations, and to enhance their growth. The extent of the growth stimulation was more pronounced for the composite varieties than for the F1 hybrid ones, although the amount of biomass accumulated by the latter, whether the plants had been inoculated or not, was greater than that of the former varieties. When the bacterial strains were cultured in vitro, each of them was shown as able to produce the phytohormones auxin, abscisic acid, gibberellins, and cytokinins. The implication is that since the presence in the rhizospere of both Arthrobacter sp. and Bacillus sp. strains can support the growth of maize in salinity-affected and P deficient soils in a genotype-dependent fashion, it is important to not only optimize the PGPR strain used for inoculation, but also to select maize varieties which can benefit most strongly from an association with these bacteria.

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Maize response to inoculation with strains of plant growth-promoting bactéria

Cited by 10 publications

References 13 publications

Maize growth in response to Azospirillum brasilense, Rhizobium tropici, molybdenum and nitrogen

Maize growth in response to Azospirillum brasilense, Rhizobium tropici, molybdenum and nitrogen

Rhizobacteria inoculation in maize associated with nitrogen and zinc fertilization at sowing

The Response of Maize to Inoculation with Arthrobacter sp. and Bacillus sp. in Phosphorus-Deficient, Salinity-Affected Soil

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