Consulta: subjectFacets:"Inoculant"
Registros recuperados: 25
Data/hora: 20/05/2024 12:17:52

Additives in ensiling palisade grass managed under grazing intensities
Provedor de dados: 2
Autores: Macedo, Felipe Barros; Luz, Pedro Henrique de Cerqueira; Faria, Letícia de Abreu; Braga, Gustavo José; Peternelli, Maurício; Herling, Valdo Rodrigues.
Conservation of summer forage excess represents a management strategy to meet animals' needs for dry matter in the shortage period, but has been poorly studied. Silage can be used for this purpose. This study analyzed the production of palisade grass silage from pasture subjected to different grazing intensities with and without additive, determining losses by gases and effluents and chemical composition of silage. The experiment was a 4 x 3 factorial completely randomized design, with four replications. The factors were: 1st – herbage allowance of 5% (5 kg dry matter 100 kg-1 of animal weight day-1), 10, 15 and 20%. The pasture was managed under rotational stocking with 35-day grazing cycles (7 days of occupation and 28 days of rest) and 2nd - additives:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inoculant; Herbage allowance; Citrus pulp; Silage; Experimental silo.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27590

Bradyrhizobium spp. Strains in Symbiosis with Pigeon Pea cv. Fava-Larga under Greenhouse and Field Conditions
Provedor de dados: 90
Autores: Rufini,Márcia; Oliveira,Dâmiany Pádua; Trochmann,André; Soares,Bruno Lima; Andrade,Messias José Bastos de; Moreira,Fatima Maria de Souza.
ABSTRACT: Optimization of symbiosis between nitrogen-fixing bacteria and legumes has been extensively studied, seeking agricultural sustainability. To evaluate the symbiotic efficiency of nitrogen-fixing bacterial strains belonging to the Bradyrhizobium genus with pigeon pea (Cajanus cajan (L.) Millsp.) cv. Fava-Larga, experiments were conducted in Leonard jars (axenic conditions), pots with soil, and in the field. Ten strains were tested in Leonard jars, and three strains, in addition to BR 29, were selected according to their ability to promote the growth of pigeon pea, for further tests in pots with different soil types (Inceptsol and Oxisol) and in the field (Oxisol). Treatments were compared with strains BR 2003 and BR 2801 (approved as inoculants for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cajanus cajan; Inoculant; Biological nitrogen fixation; Selection.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100432

Combined inoculation of rhizobia on the cowpea development in the soil of Cerrado
Provedor de dados: 124
Autores: Batista,Éder Rodrigues; Guimarães,Salomão Lima; Bonfim-Silva,Edna Maria; Souza,Analy Castilho Polizel de.
ABSTRACT Biological nitrogen fixation (BNF) plays an important role in the cowpea cultivation. This study aimed to assess the foliar levels of chlorophyll and the yield components of cowpea subjected to combined inoculation of rhizobia in Cerrado soil. The experiment was carried out in field conditions, from December of 2014 to the march of 2015, in Rondonópolis, Mato Grosso, using randomized block design with ten treatments and three replicates. Were tested the single strains MT8 and MT15 (both of R. tropici), MT16 (R. leguminosarum), BR3267 (Bradyrhizobium japonicum), the strains combinations MT8+MT15, MT8+MT16, MT15+MT16, and MT8+MT15+MT16, nitrogen fertilization (70 kg ha-1 of N-urea), and absolute control (without inoculation of rhizobia and without...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Symbiotic N2 fixation; Inoculant; Rhizobium tropici; Vigna unguiculata.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500745

Comportamento ingestivo e digestão de nutrientes em bovinos de corte alimentados com silagem de capim - DOI: 10.4025/actascianimsci.v31i4.5782
Provedor de dados: 2
Autores: Paziani, Solidete de Fátima; APTA - Centro Norte; Nussio, Luiz Gustavo; USP; Loures, Daniele Rebouças Santana; UFRB; Schmidt, Patrick; UFPR; Zopollatto, Maity; USP; Ribeiro, José Leonardo; Guabi-Nutrição Animal.
Avaliou-se o efeito do teor de matéria seca, uso de inoculante bacteriano e a redução do tamanho de partículas da silagem de capim-Tanzânia (Panicum maximum), sobre os parâmetros digestivos. Utilizaram-se sete novilhos da raça Nelore, em delineamento experimental Quadrado Latino 7 x 7. Os tratamentos foram: T1: Umidade original, partícula menor, sem inoculante bacteriano; T2: Umidade original, partícula menor, com inoculante bacteriano; T3: Emurchecido, partícula maior, com inoculante bacteriano; T4: Emurchecido, partícula maior, sem inoculante bacteriano; T5: Umidade original, partícula maior, com inoculante bacteriano; T6: Umidade original, partícula maior, sem inoculante bacteriano; T7: Umidade original, partícula maior, sem inoculante bacteriano, com...
Tipo: Digestibilidade
Palavras-chave: Bovinos; Digestibilidade; Ingestão; Inoculante Avaliação de Alimentos para Animais beef cattle; Digestibility; Intake; Inoculant.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5782

Does polymer-based encapsulation enhance performance of plant growth promoting microorganisms? A meta-analysis view
Provedor de dados: 115
Autores: Pacheco-Aguirre,J. Alberto; Ruíz-Sánchez,Esau; Ballina-Gómez,H. Salomón; Alvarado-López,C. Juan.
Abstract Various studies have been undertaken to evaluate the effect of polymer-based encapsulation on performance of plant growth promoting microorganism. However there is no systematic analysis about the performance of these microorganisms when encapsulated in a polymer-based matrix. Relevant published papers were retrieved by conducting searches in Google Scholar, Only Library, Science Direct, Springer Journal, Taylor &amp; Francis and Wiley Online Library. An examination of 117 articles was carried out and of those only 11 satisfied our criteria for inclusion into the meta-analysis. From these articles, we selected 41 cases to be evaluated. We used as keywords “microcapsules”, “capsules”, “microorganisms”, “growth”, “promoting”, “germination”...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus sp.; Inoculant; Microcapsules; Plant growth; Seed germination.
Ano: 2017
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000200173

Effect of Arbucula Myrrhizal Fungi on an Ecological Crop of Chili Peppers (Capsicum annuum L.)
Provedor de dados: 117
Autores: Castillo R,Claudia ; Sotomayor S,Leonardo ; Ortiz O,César; Leonelli C,Gina; Borie B,Fernando; Rubio H,Rosa.
Mapuche farmers in southern Chile have been cultivating local ecotypes of chili pepper (Capsicum annuum L.), called locally “Cacho de cabra” for many decades. It is used to make “merkén”, a condiment that is consumed locally and exported. This vegetable requires a nursery stage and can obtain nutritional benefits from symbiotic associations such as mycorrhizal fungi, achieving a better adaptation to transplanting. Arbuscular mycorrhizal fungi (AMF) are obligate biotrophes appearing in abundance in agroecosystems with conservation management. The aim of this study was to compare effectiveness of two AMF, a commercial mycorrhizal inoculant (IC, Glomus intraradices) and another native (IN, Glomus claroideum) with a control without inoculation (-I) on the...
Tipo: Journal article
Palavras-chave: Mycorrhiza; Inoculant; Biofertilizers; Fruit quality; Vegetables.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000100010

Efficient inoculation of diazotrophic bacteria into sugarcane by the drip irrigation system
Provedor de dados: 86
Autores: Simões,Welson Lima; Oliveira,Anderson Ramos de; Souza,Moises Alves de; Reis,Verônica Massena; Ivan Fernandes-Júnior,Paulo.
Abstract: The objective of this work was to assess the efficiency of the inoculation of a diazotrophic bacterial consortium by the drip irrigation system into sugarcane (Saccharum spp.), in the Brazilian semiarid region. The evaluated treatments were: standard inoculation by submersion; one or two inoculations by drip irrigation; nitrogen (urea) applied by fertigation; and negative controls, without inoculation or nitrogen fertilization. Leaf gas exchanges and plant growth and yield were assessed. Inoculation by irrigation is efficient for all variables, and double inoculation by the drip irrigation system stands out, increasing stem yield in 16% when compared with the negative control, without differing from the treatment with nitrogen fertilizer.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological nitrogen fixation; Brazilian semiarid region; Inoculant; Plant-growth promoting bacteria.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103304

Estratégias para aumentar a eficiência de inoculantes microbianos na cultura da soja.
Provedor de dados: 14
Autores: MERCANTE, F. M.; HUNGRIA, M.; MENDES, I. de C.; REIS JUNIOR, F. B. dos.
Inoculação em áreas de primeiro cultivo de soja. Inoculação em áreas tradicionais de cultivo com soja. Tratamento das sementes com fungicidas x inoculação de rizóbios. Aplicação dos micronutrientes cobalto (Co) e molibdênio (Mo). Adubação nitrogenada x fixação de N. Adubação nitrogenada x fixação de N. Sistemas de manejo da cultura. Uso de substância adesiva para inoculante turfoso. Rendimento médio de grãos de soja considerando 29 ensaios conduzidos em oito estados brasileiros, em solos tradicionalmente cultivados com soja e contendo 103 a 106 células de rizóbio/g solo. Ganho de rendimento de grãos de soja reinoculada com Bradyrhizobium em solos com população estabelecida, acima de 104 células/g solo, utilizando-se diferentes cultivares. Dourados, MS.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fixação biológica; Soybean; Inoculant; Fixation; Biological.; Inoculante; Microbiologia do Solo; Nitrogênio; Soja.; Nitrogen.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/911982

Field performance of new cowpea cultivars inoculated with efficient nitrogen-fixing rhizobial strains in the Brazilian Semiarid
Provedor de dados: 86
Autores: Marinho,Rita de Cássia Nunes; Nóbrega,Rafaela Simão Abrahão; Zilli,Jerri Édson; Xavier,Gustavo Ribeiro; Santos,Carlos Antônio Fernandes; Aidar,Saulo de Tarso; Martins,Lindete Míria Vieira; Fernandes Júnior,Paulo Ivan.
The objective of this work was to evaluate the contribution of efficient nitrogen-fixing rhizobial strains to grain yield of new cowpea cultivars, indicated for cultivation in the Brazilian Semiarid region, in the sub-medium of the São Francisco River Valley. Two experiments were set up at the irrigated perimeters of Mandacaru (Juazeiro, state of Bahia) and Bebedouro (Petrolina, state of Pernambuco). The treatments consisted of single inoculation of five rhizobial strains - BR 3267, BR 3262, INPA 03-11B, UFLA 03-84 (Bradyrhizobiumsp.), and BR 3299T(Microvirga vignae) -, besides a treatment with nitrogen and a control without inoculation or N application. The following cowpea cultivars were evaluated: BRS Pujante, BRS Tapaihum, BRS Carijó, and BRS Acauã. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bradyrhizobium; Microvirga vignae; Vigna unguiculata; Biological nitrogenfixation; Inoculant.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000500395

Generalized mixed linear modeling approach to analyze nodulation in common bean inbred lines
Provedor de dados: 86
Autores: Rizzardi,Diego Ary; Contreras-Soto,Rodrigo Ivan; Figueiredo,Alex Sandro Torre; Andrade,Carlos Alberto de Bastos; Santana,Rosangela Getirana; Scapim,Carlos Alberto.
Abstract: The objective of this work was to compare distributions for the modeling of the number and dry matter weight of nodules (DWN) of Rhizobium from different inoculants in common bean (Phaseolus vulgaris) inbred lines subjected to nitrogen doses, as well as to identify the best inoculant for those lines. The experiment was carried out in a randomized complete block design, arranged in split-split plots, with three factors - four inbred lines, five nitrogen doses (0, 20, 40, 60, and 80 kg ha-1), and three inoculants (CIAT 899, UFLA 02-100, and peat) - and four replicates. The number of nodules and their dry matter weight were analyzed with the generalized linear mixed modeling approach. The highest number of nodules was obtained with the CIAT 899...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Rhizobium; Symbiotic nitrogen fixation; Inoculant; Overdispersion; Underdispersion.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201178

Growth promotion of pineapple 'vitória' by humic acids and burkholderia spp. during acclimatization
Provedor de dados: 90
Autores: Baldotto,Lílian Estrela Borges; Baldotto,Marihus Altoé; Canellas,Luciano Pasqualoto; Bressan-Smith,Ricardo; Olivares,Fábio Lopes.
In vitro propagation of pineapple produces uniform and disease-free plantlets, but requires a long period of acclimatization before transplanting to the field. Quicker adaptation to the ex vitro environment and growth acceleration of pineapple plantlets are prerequisites for the production of a greater amount of vigorous, well-rooted planting material. The combination of humic acids and endophytic bacteria could be a useful technological approach to reduce the critical period of acclimatization. The aim of this study was to evaluate the initial performance of tissue-cultured pineapple variety Vitória in response to application of humic acids isolated from vermicompost and plant growth-promoting bacteria (Burkholderia spp.) during greenhouse...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus; Plant growth-promoting bacteria; Diazotrophic bacteria; Humic substances; Inoculant; Biofertilizer.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500012

In-furrow inoculation of soybean as alternative to fungicide and micronutrient seed treatment
Provedor de dados: 90
Autores: Campo,Rubens José; Araujo,Ricardo Silva; Mostasso,Fábio Luís; Hungria,Mariangela.
Soybean is a major grain crop in Brazil, and yields can be considerably improved by inoculation with selected Bradyrhizobium strains. However, the incompatibility between inoculation and seed treatments with fungicides and micronutrients represents a major barrier to the achievement of high rates of biological N2 fixation. Inoculation practices that can alleviate the negative effects of agrochemicals must therefore be found and in-furrow inoculation seems to be an attractive alternative. This study reports the results of seven field experiments conducted in three growing seasons in Brazil; three in soils previously cropped with inoculated soybean (&amp;gt; 10(4) cells g-1 of soil of Bradyrhizobium), and four in areas where the crop was sown for the first...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max [L. (Merrill.)]; Bradyrhizobium; Inoculant.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400010

Inoculation of sugarcane with diazotrophic bacteria
Provedor de dados: 90
Autores: Schultz,Nivaldo; Silva,Jeferson Alves da; Sousa,Jailson Silva; Monteiro,Rafael Cassador; Oliveira,Renan Pedula; Chaves,Valfredo Almeida; Pereira,Willian; Silva,Marinete Flores da; Baldani,José Ivo; Boddey,Robert Michael; Reis,Veronica Massena; Urquiaga,Segundo.
The sugarcane industry, a strategic crop in Brazil, requires technological improvements in production efficiency to increase the crop energy balance. Among the various currently studied alternatives, inoculation with diazotrophic bacteria proved to be a technology with great potential. In this context, the efficiency of a mixture of bacterial inoculant was evaluated with regard to the agronomic performance and N nutrition of sugarcane. The experiment was carried out on an experimental field of Embrapa Agrobiologia, in Seropédica, Rio de Janeiro, using a randomized block, 2 × 3 factorial design (two varieties and three treatments) with four replications, totaling 24 plots. The varieties RB867515 and RB72454 were tested in treatments consisting of:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum sp; Inoculant; Biological nitrogen fixation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200005

Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense
Provedor de dados: 90
Autores: Leite,Rubson da Costa; Santos,Antonio Clementino dos; Santos,José Geraldo Donizetti dos; Leite,Robson da Costa; Oliveira,Leonardo Bernardes Taverny de; Hungria,Mariangela.
ABSTRACT Using biological inputs to improve the efficiency of nitrogen fertilizers represents an alternative for the cultivation of grasses in tropical regions. Azospirillum brasilense is a species of plant growth promoting bacteria widely studied and used in inoculants. Thus, this study aimed to evaluate the performance of Mombasa grass ( Megathyrsus maximus ) in association with A. brasilense and nitrogen (N) fertilization. The study was conducted under field conditions in Araguaína-Tocantins State, between December 2017 and May 2018. The treatments were arranged in randomized blocks, in a 5 × 2 factorial arrangement, with five doses of N fertilization (0, 25, 50, 75, and 100 kg ha-1) combined with two inoculation treatments (inoculated and non...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth-promoting microbes; Inoculant; Biological nitrogen fixation; Tropical pasture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100523

Nutritional and fermentation parameters of Xaraés grass silage produced with bacterial additive
Provedor de dados: 2
Autores: Silva, Erickson Tiago Pinheiro da; Instituto Federal Goiano; Guimarães, Katia Cylene; Instituto Federal Goiano; Marques, Karolyna Oliveira; Instituto Federal Goiano; Carvalho, Thony Assis; Instituto Federal Goiano; Antonio, Patricia; Instituto Federal Goiano; Vieira Junior, Marcos Ires Rodrigues; Instituto Federal Goiano.
The use of bacterial additives in forage silages with low content of dry matter prevents undesirable fermentation and reduces losses by gases (PG) and effluents (PE) during the ensiling process. This study aimed to evaluate the fermentation parameters, chemical composition and in vitro digestibility of silage of Urochloa brizantha cv. Xaraés produced with bacterial additive. The inoculant contained the following strains: Propionibacterium acidipropionici + Lactobacillus plantarum; Lactobacillus buchnari; Propionibacterium acipropionici + commercial enzymes and Lactobacillus plantarum and Pediococcus pentosaccus, at 0, 25, 50, 75, 100, and 125% of the recommended level for sugarcane (2 g ton-1). The experiment was a completely randomized design with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 50404008 ensiling; Forage; Inoculant.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22885

Performance of Holstein heifers fed sugarcane silages treated with urea, sodium benzoate or Lactobacillus buchneri
Provedor de dados: 86
Autores: Pedroso,André de Faria; Nussio,Luiz Gustavo; Barioni Júnior,Waldomiro; Rodrigues,Armando de Andrade; Loures,Daniele Rebouças Santana; Campos,Fabio de; Ribeiro,José Leonardo; Mari,Lucas José; Zopollatto,Maity; Junqueira,Marta; Schmidt,Patrick; Paziani,Solidete de Fátima; Horii,Jorge.
The objective of this work was to evaluate the performance of heifers fed sugarcane silages produced with and without additives. Thirty-two Holstein heifers were randomly assigned, in a block design, to evaluate rations (46% silage; 54% concentrate; 12% crude protein) containing silages treated with (fresh basis) urea (0.5%), sodium benzoate (0.1%) or Lactobacillus buchneri (3.64x10(5) cfu g-1 ). Inoculation with L. buchneri improved daily gain (1.24 vs. 0.94 kg day-1 ), and the addition of benzoate resulted in better feed conversion (7.6 vs. 9.4 kg of dry matter per kg of live weight), in relation to the untreated silage (control). Treatments did not affect dry matter intake (mean of 2.19% of live weight). Rations containing silages treated with benzoate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additive; Inoculant; Nutritional value; Weight gain.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000400015

Phenotypic, genetic and symbiotic characterization of Erythrina velutina rhizobia from Caatinga dry forest
Provedor de dados: 58
Autores: Rodrigues,Dalila Ribeiro; Silva,Aleksandro Ferreira da; Cavalcanti,Maria Idaline Pessoa; Escobar,Indra Elena Costa; Fraiz,Ana Carla Resende; Ribeiro,Paula Rose de Almeida; Ferreira Neto,Reginaldo Alves; Freitas,Ana Dolores Santiago de; Fernandes-Júnior,Paulo Ivan.
Abstract Erythrina velutina ("mulungu") is a legume tree from Caatinga that associates with rhizobia but the diversity and symbiotic ability of "mulungu" rhizobia are poorly understood. The aim of this study was to characterize "mulungu" rhizobia from Caatinga. Bacteria were obteined from Serra Talhada and Caruaru in Caatinga under natural regeneration. The bacteria were evaluated to the amplification of nifH and nodC and to metabolic characteristics. Ten selected bacteria identified by 16S rRNA sequences. They were tested in vitro to NaCl and temperature tolerance, auxin production and calcium phosphate solubilization. The symbiotic ability were assessed in an greenhouse experiment. A total of 32 bacteria were obtained and 17 amplified both symbiotic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological nitrogen fixation; "Mulungu"; Diversity; Inoculant; 16S rRNA.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300503

Plant growth-promoting bacteria as inoculants in agricultural soils
Provedor de dados: 74
Autores: Souza,Rocheli de; Ambrosini,Adriana; Passaglia,Luciane M.P.
Abstract Plant-microbe interactions in the rhizosphere are the determinants of plant health, productivity and soil fertility. Plant growth-promoting bacteria (PGPB) are bacteria that can enhance plant growth and protect plants from disease and abiotic stresses through a wide variety of mechanisms; those that establish close associations with plants, such as the endophytes, could be more successful in plant growth promotion. Several important bacterial characteristics, such as biological nitrogen fixation, phosphate solubilization, ACC deaminase activity, and production of siderophores and phytohormones, can be assessed as plant growth promotion (PGP) traits. Bacterial inoculants can contribute to increase agronomic efficiency by reducing production costs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen fixation; Siderophore production; Plant-bacteria interaction; Inoculant; Rhizosphere.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400401

Production technology and quality of corn silage for feeding dairy cattle in Southern Brazil
Provedor de dados: 96
Autores: Silva,Mábio Silvan José da; Jobim,Clóves Cabreira; Poppi,Edson Carlos; Tres,Tamara Tais; Osmari,Milene Puntel.
ABSTRACTThe objective of this study was to evaluate the production practices and use of corn silage in dairy farms in Southern Brazil, and to evaluate their impact on the nutritional quality and occurrence of mycotoxins. The data were collected by application of questionnaires among the producers, and by analysis of silage samples. The variables were subjected to factorial analysis of data reduction through the principal components method, thus obtaining 84.12% of the variance associated with the location, corn hybrid, crop production management, and inoculant used, characterizing the farms into four distinct groups. In farms from Paraná, the silage production technologies were more associated with implantation and crop management processes, and investment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clustering; Inoculant; Maize; Mycotoxins; Silage production.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000900303

Screening of plant growth promoting bacteria associated with barley plants (Hordeum vulgare L.) cultivated in South Brazil
Provedor de dados: 49
Autores: Pontes,Andress P.; Souza,Rocheli de; Granada,Camille E.; Passaglia,Luciane M.P.
The occurrence of associations between bacteria and plant roots may be beneficial, neutral or detrimental. Plant growth promoting (PGP) bacteria form a heterogeneous group of beneficial microorganisms that can be found in the rhizosphere, the root surfaces or in association with host plant. The aim of this study was to isolate and characterize PGP bacteria associated to barley plants (Hordeum vulgare L.) aiming a future application as agricultural inoculant. One hundred and sixty bacterial strains were isolated from roots or rhizospheric soil of barley based on their growth in nitrogen-free selective media. They were evaluated for their ability to produce indolic compounds (ICs) and siderophores, and to solubilize tricalcium phosphate inin vitro assays....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial 16S rRNA gene; Inoculant; Barley; Phosphate solubilization.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200108

Selection of arbuscular mycorrhizal fungi for sugarcane in four soils with the presence of dark septate endophytes
Provedor de dados: 1
Autores: Fors, Rosalba Ortega; Saggin Júnior, Orivaldo José; Carneiro, Marco Aurélio Carbone; Berbara, Ricardo Luis Louro.
The present study aimed to select efficient arbuscular mycorrhizal fungi (AMF) for sugarcane growth and P nutrition in four soils that spontaneously contained dark septate endophytes (DSE). The effect of nine AMF isolates was evaluated individually in sugarcane presprouted seedlings (SP81-3250) grown under greenhouse conditions for a 120-day period. The isolates that stimulated plant growth in the soils with low P availability were Acaulospora colombiana (ACOL), Claroideoglomus etunicatum (CETU), Gigaspora margarita (GMAR), Rhizophagus clarus (RCLA) and Scutellospora calospora (SCAL). Compared to the Yellow Argisol, which had the highest P level, the Red-Yellow Argisol, with an intermediate P content, increased plant height. Compared to the other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum sp.; Glomeromycota; Inoculant; Phosphate nutrition; Pre-sprouted seedlings.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42477

Silage microbiology and its control through additives
Provedor de dados: 96
Autores: Muck,Richard E.
Ensiling is a method of preserving a moist crop. A moist crop can support the growth of a wide range of microorganisms, most of which will degrade the nutrient value to livestock. However, ensiling generally controls microbial activity by a combination of an anaerobic environment and a natural fermentation of sugars by lactic acid bacteria on the crop. This fermentation and the resulting low pH primarily suppress the growth of other anaerobic microorganisms. The fermentation can also inhibit yeasts, molds and aerobic bacteria, but the anaerobic environment is essential to preventing most of the spoilage microorganisms from growing. Inoculants have become the dominant additives for making silage. Homofermentative strains help guarantee a rapid suppression...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridia; Enterobacteria; Inoculant; Lactic acid bacteria; Mold; Yeast.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300021

Symbiotic and agronomic efficiency of new cowpea rhizobia from Brazilian Semi-Arid
Provedor de dados: 53
Autores: Marinho,Rita de Cássia Nunes; Ferreira,Linnajara de Vasconcelos Martins; Silva,Aleksandro Ferreira da; Martins,Lindete Míria Vieira; Nóbrega,Rafaela Simão Abrahão; Fernandes-Júnior,Paulo Ivan.
ABSTRACT Cowpea is a very important crop to Brazilian Semi-Arid mainly small family-based farmers. Rhizobia inoculation is a practice, easy to use, and cheap technology that increases cowpea productivity. The aim of this study was to evaluate the efficiency of two new rhizobia isolates in greenhouse and field as well as classify them taxonomically. To bacterial identification the 16S rRNA gene of ESA 17 and ESA 18 isolates were sequenced. The greenhouse test was conducted with pots containing 3 L of soil and the bacterial isolates evaluated were ESA 17, ESA 18, BR 3267 or BR 3262 strains. A field experiment was implemented on a Vertisol in Juazeiro, Bahia State, to evaluate the cowpea growth and productivity. In this experiment, the peat-based inoculants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bradyrhizobium; Inoculant; Biological nitrogen fixation; Strain selection; São Francisco River Valley.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200273

THE RESURRECTION PLANT TRIPOGON SPICATUS (POACEAE) HARBORS A DIVERSITY OF PLANT GROWTH PROMOTING BACTERIA IN NORTHEASTERN BRAZILIAN CAATINGA
Provedor de dados: 90
Autores: Fernandes-Júnior,Paulo Ivan; Aidar,Saulo de Tarso; Morgante,Carolina Vianna; Gava,Carlos Alberto Tuão; Zilli,Jerri Édson; Souza,Layane Silva Barbosa de; Marinho,Rita de Cássia Nunes; Nóbrega,Rafaela Simão Abrahão; Brasil,Marivaine da Silva; Seido,Sirando Lima; Martins,Lindete Míria Vieira.
Plant species that naturally occur in the Brazilian Caatinga(xeric shrubland) adapt in several ways to these harsh conditions, and that can be exploited to increase crop production. Among the strategic adaptations to confront low water availability, desiccation tolerance stands out. Up to now, the association of those species with beneficial soil microorganisms is not well understood. The aim of this study was to characterize Tripogon spicatusdiazotrophic bacterial isolates from the Caatingabiome and evaluate their ability to promote plant growth in rice. Sixteen bacterial isolates were studied in regard to their taxonomic position by partial sequencing of the 16S rRNA gene, putative diazotrophic capacity, in vitro indole-acetic acid (IAA) production and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological nitrogen fixation; Inoculant; Diazotrophic bacteria; Semi-arid; Desiccation tolerant plants.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000400993

Utilization of rocks and ectomycorrhizal fungi to promote growth of eucalypt
Provedor de dados: 58
Autores: Alves,Luciano; Oliveira,Vetúria L.; Silva Filho,Germano N.
The utilization of rocks as fertilizers is limited by their low solubility. However, solubilization may be achieved by some micro-organisms, such as ectomycorrhizal fungi (ECMf). The aim of this study was to evaluate the potential of seven isolates of ECMf to solubilize two rocks, alkaline breccia and granite, and to liberate potassium and phosphorus for Eucalyptus dunnii seedlings under greenhouse conditions. Fungal inoculants were produced in a peat-vermiculite-liquid medium mixture and added to the planting substrate at 10 %. Rocks were ground up and added at 0.500 mg and 16.0 mg per plant, as a source of phosphorus and potassium, respectively. Other nutrients were added and E. dunnii seeds were sown. Control plants, non-inoculated, were fertilized with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectomycorrhizas; Inoculant; Ground rock; Fertilizer; Eucalyptus dunnii.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300018