A combination of humic substances and Herbaspirillum seropedicae inoculation enhances the growth of maize (Zea mays L.)

Canellas, Luciano Pasqualoto; Balmori, Dariellys Martínez; Médici, Leonardo Oliveira; Aguiar, Natália Oliveira; Campostrini, Eliemar; Rosa, Raul Castro Carrielo; Façanha, Arnoldo Rocha; Olivares, Fábio Lopes

doi:10.1007/s11104-012-1382-5

Cited by 142 publications

(144 citation statements)

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“…This effect of increase in root length and volume is due to the production of auxins by the bacteria, which stimulates the growth of secondary roots, thus increasing the specific area of absorption of water and nutrients by plants (Radwan et al, 2004). Similar results were reported by Canellas et al (2013), who observed increase in root area of corn plants when inoculated with Herbaspirillum seropedicae combined with humic substances.…”

Section: Resultssupporting

confidence: 90%

Diazotrophic bacteria inoculation associates with acids and nitrogen in corn

Araújo¹,

Rocha²,

Gerola³

et al. 2016

Afr. J. Plant Sci.

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Section: Resultssupporting

confidence: 90%

Diazotrophic bacteria inoculation associates with acids and nitrogen in corn

Araújo¹,

Rocha²,

Gerola³

et al. 2016

Afr. J. Plant Sci.

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“…More recently, Canellas et al [6] verified that free carbohydrate content in leaf extracts was 60% lower than control in maize plants treated with HS, showing reduction of fructose, glucose and starch. Finally, the induction of leaf invertase activity by HS was also verified by Concheri et al [28] in wheat root seedlings.…”

Section: Changes On Primary and Secondary Metabolismmentioning

confidence: 96%

“…Field experiments using low fertilizer input (20 kg N-urea) and foliar application of both HS from vermicompost and a plant growth-promoting bacteria strain of H. seropedicae (Z67) were carried out [6]. It was found, at early stages (7 and 45 days old) in greenhouse, that H. seropedicae in mixture with HS from vermicompost activated plant metabolic processes such as enhancement of plasma membrane H + -ATPase activity, alteration of both sugar and N metabolism and increase of net photosynthesis.…”

Section: Hs and Plant Growth-promoting Bacteriamentioning

confidence: 99%

“…Moreover, edaphic constraints from inherently low soil fertility and/or soil degradation from unsustainable farming practices also contribute to the limited crop yield [2]. Based on these challenges, there has been a call for a second green revolution with a goal of enhancing crop yields, improving soil fertility through better management practices [3,4], breeding crops with greater tolerance to edaphic stresses [5] and by development of new inputs based on optimization of biological/ microbiological process [6]. A new generation of crops adapted to low/reduced input systems will not only enable people in some of the poorest parts of the world to provide themselves with adequate food, but it will also play a vital role in the high-input systems of the developed world, by reducing agrochemical inputs and their associated economic and environmental costs [7].…”

Section: Introductionmentioning

confidence: 99%

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Physiological responses to humic substances as plant growth promoter

Canellas

Olivares

2014

Chem Biol Techn Agric

338

224

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Humic substances (HS) have been widely recognized as a plant growth promoter mainly by changes on root architecture and growth dynamics, which result in increased root size, branching and/or greater density of root hair with larger surface area. Stimulation of the H + -ATPase activity in cell membrane suggests that modifications brought about by HS are not only restricted to root structure, but are also extended to the major biochemical pathways since the driving force for most nutrient uptake is the electrochemical gradient across the plasma membrane. Changes on root exudation profile, as well as primary and secondary metabolism were also observed, though strongly dependent on environment conditions, type of plant and its ontogeny. Proteomics and genomic approaches with diverse plant species subjected to HS treatment had often shown controversial patterns of protein and gene expression. This is a clear indication that HS effects of plants are complex and involve non-linear, cross-interrelated and dynamic processes that need be treated with an interdisciplinary view. Being the humic associations recalcitrant to microbiological attack, their use as vehicle to introduce beneficial selected microorganisms to crops has been proposed. This represents a perspective for a sort of new biofertilizer designed for a sustainable agriculture, whereby plants treated with HS become more susceptible to interact with bioinoculants, while HS may concomitantly modify the structure/activity of the microbial community in the rhizosphere compartment. An enhanced knowledge of the effects on plants physiology and biochemistry and interaction with rhizosphere and endophytic microbes should lead to achieve increased crop productivity through a better use of HS inputs in Agriculture.

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“…Essas propriedades dos AH e das bactérias diazotróficas podem possibilitar desenvolvimento mais rápido e maior produtividade das plantas, reduzindo custos com adubação e o tempo de produção dos cultivos (Lima et al, 2011;Canellas & Olivares, 2014). Experimentos conduzidos em casa de vegetação comprovam essa eficiência no cultivo de milho (Conceição et al, 2008;Canellas et al, 2013), abacaxi (Baldotto et al, 2010) e tomate (Olivares et al, 2015). Contudo, quantidade menor de trabalhos foi realizada sob condições de campo, sendo importante tornar acessível e validar essa tecnologia nessas situações.…”

Section: Introductionunclassified

Produtividade da alface (Lactuca sativa L.) em resposta à aplicação de ácidos húmicos e bactérias diazotróficas, em condições de campo

Meirelles

Baldotto

2017

Rev. Ceres

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A alface é uma das hortaliças folhosas mais consumidas no Brasil, gerando grande demanda por seu cultivo. É cultura exigente em nutrientes e requer solo rico em matéria orgânica para obtenção de produtividade elevada, com necessidade de aplicação de grandes doses de compostos orgânicos, onerando os custos da produção. Ácidos húmicos (AH) e bactérias diazotróficas (B) apresentam hormônios vegetais, como auxinas, que promovem alongamento celular, aumento das raízes e da absorção de nutrientes, levando ao crescimento e desenvolvimento das plantas. Por essas características, podem ser utilizados como bioestimulantes na promoção da produtividade da alface. O objetivo deste trabalho foi avaliar a produtividade da alface em resposta à aplicação de ácidos húmicos e bactérias diazotróficas, em condições de campo. Os ácidos húmicos foram isolados de esterco bovino e as bactérias usadas foram provenientes da coleção de bactérias do Setor de Floricultura da Universidade Federal de Viçosa -Campus Florestal, extraídas de orquídeas Cymbidium sp.. O experimento foi realizado em condições de campo, com o cv. Vanda e os tratamentos usados foram controle (cultivo convencional do produtor), aplicação isolada de ácido húmico e bactéria e aplicação combinada de ácido húmico+bactéria. O delineamento adotado foi em blocos casualizados, com cinco repetições. A aplicação dos bioestimulantes foi realizada logo após o transplantio. Foram avaliados atributos fitotécnicos da parte aérea das plantas. Concluiu-se que os tratamentos utilizados, principalmente a combinação AH+B, aumentaram a produtividade da alface. Palavras Productivity of lettuce (Lactuca sativa L.) in response to the application of humic acids and diazotrophic bacteria, under field conditionsLettuce is one of the most consumed leafy vegetables in Brazil, generating great demand for its cultivation. It demands nutrients and a soil rich in organic matter to achieve high productivity, requiring large doses of organic compounds, leading to high production costs. Humic acids (HA) and diazotrophic bacteria (B) contain plant hormones, such as auxins, which promote cell elongation and increase of roots and absorption of nutrients, leading to plant growth and development. Due to these characteristics, they can be used as biostimulants in promoting lettuce productivity. The objective of this work was to evaluate the productivity of lettuce in response to the application of humic acids and diazotrophic bacteria under field conditions. The humic acids were isolated from bovine manure and the bacteria originated from the collection of bacteria from the Floriculture Sector of the Federal University of Viçosa -Campus Florestal, extracted from Cymbidium sp. orchids. The experiment was carried out in field conditions with cv. Vanda and the treatments were control (producer's conventional cultivation), isolated applications of humic acid and bacterium, and combined application of humic acid + bacterium. A randomized block design with five replications was used. The application of bios...

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A combination of humic substances and Herbaspirillum seropedicae inoculation enhances the growth of maize (Zea mays L.)

Cited by 142 publications

References 45 publications

Diazotrophic bacteria inoculation associates with acids and nitrogen in corn

Diazotrophic bacteria inoculation associates with acids and nitrogen in corn

Physiological responses to humic substances as plant growth promoter

Produtividade da alface (Lactuca sativa L.) em resposta à aplicação de ácidos húmicos e bactérias diazotróficas, em condições de campo

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