Agronomic performance of<i>Azospirillum brasilense</i>on wheat crops

Vogel, Gabriel Felipe; Martinkoski, Lais; Bittencourt, Henrique von Hertwig; Grillo, José Francisco

doi:10.5935/paet.v6.n3.13

Cited by 6 publications

(14 citation statements)

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“…In general, the results obtained are satisfactory, since the use of inoculation increased the growth of the roots. The association of microorganisms such as Azospirillum provides a greater number of root hairs, increasing the root surface, consequently the plant can absorb more nutrients and water, thus aiding in greater plant growth and development (Vogel et al, 2013). Bashan et al (1996) reports that the microorganism Azospirillum sp.…”

Section: Results and Discussion Experiments 1: Growth Of Tomato Plantsmentioning

confidence: 99%

RATES OF APPLICATION OF Azospirillum brasilense IN TOMATO CROP

Lima

Vogel

Fey

2018

Rev. Agric. Neotrop.

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The use of plant growth-promoting bacteria (PGPB) may be a promising agronomic practice to improve the growth and productivity of vegetables. The objective of this work was to evaluate the effect of inoculation of Azospirillum brasilense on plant growth and tomato fruit production. Two experiments were carried out: the first one evaluating the growth of the plants in a greenhouse and the second one evaluating the production of fruits under field conditions. The experimental design used in two experiments was the completely randomized 2 x 5 factorial scheme, with four replications. The treatments resulted from the combination of two tomato cultivars (Gaúcho Melhorado and San Marzano) and four inoculant doses (0; 2; 4; 6 e 8 mL kg-1 of seed) containing the Ab-V5 and Ab-V6 strains of A. Brasilense. The application of inoculant containing A. brasilense improved the growth and dry matter production of tomato cultivars Gaúcho Melhorado and San Marzano. The highest values of plant height, stem diameter, root length, root volume, relative chlorophyll content and dry matter of shoots and roots are obtained with the dose of 4 to 6 mL kg-1 of inoculant, allowing to infer that the maximization of plant growth and the production of tomato fruits with the application of inoculant containing Azospirillum brasilense can be obtained with the use of approximately 5.0 mL kg-1 of seeds for tomato cultivars.

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Section: Results and Discussion Experiments 1: Growth Of Tomato Plantsmentioning

confidence: 99%

RATES OF APPLICATION OF Azospirillum brasilense IN TOMATO CROP

Lima

Vogel

Fey

2018

Rev. Agric. Neotrop.

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“…Com relação aos aspectos morfológicos avaliados em ambiente protegido (Tabela 3), não foram constatados diferenças estatísticas com relação Vogel et al (2015) Print- ISSN 1983-6325 (On line) e-ISSN 1984 as variáveis: comprimento parte aérea, número de perfilhos, massa seca da raízes, índice clorofila (SPAD), massa fresca da folha e perfilho, massa fresca do colmo, massa seca da folha e perfilhos e massa seca total do trigo. Avaliando o comprimento da parte aérea, verifica-se que a presença do fungicida Carboxina + Tiram combinado com a A. brasilense proporcionou comportamento estatisticamente superior em relação a testemunha padrão, ao passo que este comportamento não pode ser observado no que se refere ao uso do ingrediente ativo Captana, demonstrando resultados inferiores em comparação a testemunha padrão.…”

Section: Resultsunclassified

“…O destaque da auxina se deve a sua contribuição pela modificação de algumas características morfológicas do sistema radicular, resultando em um aumento no comprimento e ramificação do sistema radicular, formação de pêlos radiculares e elevação na taxa de aparecimento de raízes secundárias. Assim, verifica-se um aumento da área superficial do sistema radicular e, consequentemente, da elevação do volume de substrato de solo explorado (REIS JUNIOR et al, 2008e HUNGRIA et al 2010VOGEL et al, 2013), promovendo maior assimilação de nutrientes e, consequentemente, auxiliando em um maior desenvolvimento da planta (VOGEL et al, 2013).…”

Section: Efeitos Da Combinação De…unclassified

“…Segundo CAMPOS e HUNGRIA (2000), o principal problema do tratamento de sementes sobre a microbiota do solo se deve principalmente a menor sobrevivência destas bactérias, influenciada pelo ingrediente ativo, pH e/ou solventes utilizados nas formulações de fungicidas. Vogel et al (2015) Conclusão O uso de A. brasilense, de forma isolada, apresentou o melhor desempenho nas características de parte aérea de plântulas e sistema radicular de plantas adultas de trigo, em especial sobre o sistema radicular.…”

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Efeitos na combinação deAzospirillum brasilensecom fungicidas no desenvolvimento de trigo

Vogel

Martinkoski

Jadoski

et al. 2015

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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ResumoEm ambiente protegido foram analisados características da parte aérea e do sistema radicular até 60 DAE. Verifica-se que o uso isolado da A. brasilense, de modo geral, apresentou maior desempenho em relação à testemunha padrão, ao passo que a associação com Captana e Carboxina + Tiram promoveu resultados semelhantes aos tratamentos com ausência da bactéria e a testemunha padrão, inferindo um possível efeito tóxico advindo da prática do tratamento químico de sementes com estes produtos sobre o desempenho da bactéria. Deste modo, o uso Captana e Carboxina + Tiram interfere na interação bactéria-raiz, afetando no processo de germinação e no desenvolvimento inicial do trigo. Palavras chaves: fixação biológica; compatibilidade; toxidez Effects to the combination of Azospirillum brasilense with fungicides in wheat development AbstractThe use of biological inputs the base diazotrophs has emerged as an alternative in reducing the need for application of nitrogenous fertilizers. However, the chemical seed treatment might come to promote detrimental effects on soil microflora. This study aims to assess the effects of Captana fungicides and Carboxin + Tiram associated with Azospirillum brasilense on wheat. The study was conducted in laboratory and greenhouse at the Federal University of Fronteira Sul, Laranjeiras do Sul, PR. The design adopted was completely randomized with eight treatments and four repetitions: witness; A. brasilense; Captana; Carboxin + Tiram; Captana + Carboxin + Tiram; A. brasilense + Captana; A. brasilense + Carboxin + Tiram; A. brasilense + Captana + Carboxin + Tiram. In laboratory tests were evaluated related to germination and seedling development. In a protected environment were analyzed shoot characteristics and root system up to 60 DAE. It appears that the isolated use of A. brasilense, generally showed higher performance compared to standard witness, whereas the association with Captana and Carboxin + Tiram promoted similar results to treatment

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“…Biological fixation, performed by diazotrophs, is a process of great importance because it is responsible for the incorporation of considerable amounts of atmospheric N, in both natural ecosystems and in agricultural systems (Guimarães et al, 2010). Vogel et al (2013) made a revision about the use of diazotroph bacteria in rice. They reported the benefits related to the morphological aspects of the rice plant including N accumulation in the plant and in the grain, showing increases in root area and plant height, positive contributions related to green and dry mass and the number of panicles.…”

Section: Introductionmentioning

confidence: 99%

Yield of upland rice as affected by nitrogen application and seed inoculation with diazotrophic bacteria

Nascente¹,

Carvalho²

2018

Aust J Crop Sci

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The use of nitrogen-fixing diazotrophic bacteria such as Azospirillum spp. could be an important alternative to reduce nitrogen fertilization in upland rice field. The objective of this study was to determine the effect of nitrogen application at topdressing and seed inoculation with strains of Azospirillum spp. on the plant biomass, foliar nutrient concentration, yield components, grain yield and nutrient concentration of grains in upland rice under a no-tillage system. The field experiments were conducted for two growing seasons 2015/2016 and 2016/2017 in the Cerrado Region of Brazil. The experimental design was a complete randomized block in a factorial 4x4 scheme with three replications. The treatments consisted of inoculated seeds of rice with peat containing the strains of Azospirillum spp. [Azospirillum brasilense 245, Hernaspirillum seropedicae Z94, commercial Azospirillum brasilense (Ab V5 and Ab V6 strains), and without Azospirillum] with four doses of N (0, 40, 80 and 120 kg ha-1) applied as urea at topdressing. The use of diazotrophic bacteria in high level of soil organic matter did not increase yield components, grain yield and nutrients in the leaves and grains of upland rice. Increasing rates of N increased N, P, K, Ca, Mg, S, Cu and Mn in leaves; N, P, Ca, Cu and Fe in the grains, biomass, panicle per meter, grain per panicle and grain yield of upland rice. In this sense, the rate of 120 kg ha-1 of N provided the highest rice grain yield (4,413 kg ha-1).

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Agronomic performance ofAzospirillum brasilenseon wheat crops

Cited by 6 publications

References 29 publications

RATES OF APPLICATION OF Azospirillum brasilense IN TOMATO CROP

RATES OF APPLICATION OF Azospirillum brasilense IN TOMATO CROP

Efeitos na combinação deAzospirillum brasilensecom fungicidas no desenvolvimento de trigo

Yield of upland rice as affected by nitrogen application and seed inoculation with diazotrophic bacteria

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