Produtividade do milho em resposta à inoculação com Herbaspirillum seropedicae sob diferentes níveis de nitrogênio

Dotto, Adriano Paulo; Lana, Maria do Carmo; Steiner, Fábio; Frandoloso, Jucenei Fernando

doi:10.5039/agraria.v5i3a898

Cited by 26 publications

(38 citation statements)

References 18 publications

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“…There was no effect of inoculation on basal stem diameter, corroborating the results obtained by Dotto et al (2010). However, an increasing linear adjustment of basal stem diameter was observed as a function of N rates ( Figure 2B), with increase of 0.0126 mm for each kg of N added to the soil.…”

Section: Resultssupporting

confidence: 78%

“…The leaf nitrogen content was not influenced by inoculation (Table 1), confirming the results of Dotto et al (2010). Because of the nitrogen fertilization, there was a quadratic polynomial fit for leaf N content ( Figure 2D), with a maximum N leaf (40.41 g kg -1 ) obtained with the rate of 87.4 kg ha -1 N. The leaf nitrogen contents found in this study were above the sufficiency range considered as suitable for corn (27.5 to 32.5 g kg -1 of N) by Malavolta et al (1997), however, toxicity symptoms were not observed in corn plants during the experiment.…”

Section: Resultssupporting

confidence: 78%

“…CD386 had greater basal stem diameter, leaf N content, ear diameter and 100 seed weight than 30F53 (Tables 1 and 2). Dotto et al (2010), in a study with H. seropedicae inoculation and N rates, also found different performances of corn genotypes for the traits evaluated.…”

Section: Resultsmentioning

confidence: 99%

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Growth and yield of corn hybrids in response to association with Azospirillum brasilense and nitrogen fertilization

et al. 2015

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Growth and yield of corn hybrids in response to association withAzospirillum brasilense and nitrogen fertilization 1 There is a growing interest in optimizing the positive effects of the association between Azospirillum bacteria and corn crop in order to reduce the use of nitrogen fertilizers. This study aimed to evaluate the inoculation efficiency of an A. brasilense-based commercial product in association with different rates of nitrogen fertilization in two corn genotypes. The experiment was arranged in a 2 x 2 x 5 factorial randomized block design, with four replications. The treatments consisted of two corn hybrids (30F53 and CD386); with and without inoculation with a commercial product based on A. brasilense and five nitrogen rates (0, 40, 80, 120 and 160 kg ha -1 ). The variables plant height, basal stem diameter, leaf area, shoot dry matter, leaf nitrogen content, length and diameter of the cob, weight of 100 grains and grain yield were evaluated. Inoculation with A. brasilense provided increases of 11 and 12% in leaf area and shoot dry matter, respectively. There were differences in the response of the corn hybrids for most variables and the increase in nitrogen supply provided increments in the growth and yield of corn.

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Section: Resultssupporting

confidence: 78%

Section: Resultssupporting

confidence: 78%

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Growth and yield of corn hybrids in response to association with Azospirillum brasilense and nitrogen fertilization

et al. 2015

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“…Dartora et al (2013) found that Azospirilum had a significant effect on the basal diameter of maize plants in the vegetative (V8) and reproductive (R3) stages. On the other hand, Dotto et al (2010) did not verify this trend when evaluating the effects of Herbaspirillum seropedicae inoculations and N levels on the behavior of maize hybrids. The initial Raoni Ribeiro Guedes Fonseca Costa Means followed by the same letter in the line do not differ significantly from each other by the Tukey test at 5 %.…”

Section: Resultsmentioning

confidence: 91%

Efficiency of inoculant with Azospirillum brasilense on the growth and yield of second-harvest maize1

Costa

Quirino

Naves

et al. 2015

Pesqui. Agropecu. Trop.

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The misuse of fertilizers has become a growing concern in terms of agricultural and environmental sustainability. One alternative to reduce the impact of chemical fertilizers is the use of inoculants containing nitrogen-fixing and plant growth promoting bacteria. This study aimed at evaluating the effects of an inoculant with Azospirillum brasilense on the growth and yield of secondharvest maize. The experimental design was randomized blocks with three replications, in a 3 × 5 factorial scheme. The treatments consisted of three inoculation methods (control without inoculation, seed inoculation and leaf-sprayed inoculation at the V4 stage) and five cover N-fertilization doses (0 %, 25 %, 50 %, 75 % and 100 %, with the 100 % dose corresponding to 50 kg ha-1 of N as urea). Inoculated plants showed a greater growth for height (9.5 % and 16 %), stem dry biomass (49 % and 6.75 %) and root dry biomass (123 % and 97 %), respectively for seed inoculation and spraying, as well as increases in ear size (8 %), chlorophyll content (4 %), 1,000-grain weight (12 %) and grain yield (29 %), when compared to non-inoculated plants. The effects of N doses were only significant for 1,000-grain weight and grain yield (kg ha-1), with seed inoculation providing a higher yield for second-harvest maize.

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“…(Alves et al, 2015), Herbaspirillum spp. (Dotto et al, 2010;Araújo et al, 2013) and Rhizobium spp. (Hahn et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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

Dartora

Guimarães

Menezes

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha -1 at sowing (N1); 160 kg of N ha -1 (N1 + 130 kg of N ha -1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate Azospirillum sp. L26 associated with 30 kg of N ha -1 at sowing promoted yields equivalent to that of the N fertilization of 160 kg ha -1 , demonstrating the potential to be used in the inoculation of maize seeds.Resposta do milho à inoculação de estirpes de bactérias promotoras do crescimento de plantas R E S U M O Neste trabalho objetivou-se avaliar a resposta do milho à inoculação de estirpes de bactérias promotoras do crescimento de plantas (BPCP's) em dois anos de cultivo. O experimento foi conduzido em delineamento experimental de blocos ao acaso com quatro repetições em dois anos de cultivo (2012/13 e 2013/14). Os tratamentos foram constituídos pela inoculação de BPCP's: controle (sem N e sem inoculação); 30 kg ha -1 N na semeadura (N1); 160 kg ha -1 N (N1 + 130 kg ha -1 N em cobertura); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp., L26; N1 + Azospirillum sp., L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Diâmetro basal do colmo, altura da planta, área foliar, massa seca da parte aérea e produtividade foram avaliados. A estirpe de Rhizobium sp. 8121 e o isolado de Azospirillum sp. L26 associados à adubação com 30 kg ha -1 N na semeadura proporcionaram produtividades equivalentes à adubação com 160 kg ha -1 N demonstrando potencial para serem utilizadas na inoculação de sementes de milho.

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Produtividade do milho em resposta à inoculação com Herbaspirillum seropedicae sob diferentes níveis de nitrogênio

Cited by 26 publications

References 18 publications

Growth and yield of corn hybrids in response to association with Azospirillum brasilense and nitrogen fertilization

Growth and yield of corn hybrids in response to association with Azospirillum brasilense and nitrogen fertilization

Efficiency of inoculant with Azospirillum brasilense on the growth and yield of second-harvest maize1

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

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