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| Registros recuperados: 889 | |
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| Silva,Alysson Jalles da; Sanches,Adhemar; Andrade,Andréa Carla Bastos; Oliveira,Gustavo Hugo Ferreira de; Mauro,Antonio Orlando Di. |
| Abstract: The objective of this work was to compare the Bayesian approach and the frequentist methods to estimate means and genetic parameters in soybean multienvironment trials. Fifty-one soybean lines and four controls were evaluated in a randomized complete block design, in six environments, with three replicates, and soybean grain yield was determined. The half-normal prior and uniform distributions were used in combination with parameters obtained from data of 18 genotypes collected in previous and related experiments. The genotypic values of the genotypes of high- and low-grain yield, clustered by the Bayesian approach, differed from the means obtained by the frequentist inference. Soybean assessed through the Bayesian approach showed genetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Mathematical modeling; Prior distribution in plant breeding. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001093 |
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| Albrecht,A.J.P.; Albrecht,L.P.; Krenchinski,F.H.; Placido,H.F.; Lorenzetti,J.B.; Victoria Filho,R.; Barroso,A.A.M.. |
| Recent studies indicate that glyphosate applied in post-emergence in RR soybean can eventually cause phytotoxic effects. However, there are many questions that need to be clarified in the scientific and technical contexts, involving the issue of RR soybeans regarding the use of glyphosate. This study has assessed the impact of the application of different doses and formulations of glyphosate in the reproductive period of RR soybean (R1 stage). For that purpose, an experiment in the field was conducted in two harvests (2011/12 and 2012/13), in which a 2 x 5 factorial design was used (formulations versus doses) totaling 10 treatments. In these two experiments the variables related to agronomic performance were: phytotoxicity (7, 14, 21 and 28 days after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Herbicide; Transgenic crops; Phytotoxicity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400020 |
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| Torres,Antonio Carlos; Nascimento,Warley Marco; Paiva,Sonia Alessandra Vasconcelos; Aragão,Fernando Antonio Souza de. |
| Glyphosate is a systemic, nonselective, postemergence herbicide that inhibits growth of both weeds and crop plants. Once inside the plant, glyphosate interferes with biosynthesis of aromatic amino acids phenylalanine, tyrosine, and tryptophan, by inhibiting the activity of 5enolpyruvylshikimate-3-phosphate synthase (EPSPS), a key enzyme of the shikimate pathway. The objective of this work was to develop a simple, effective and inexpensible method for identification of transgenic soybean tolerant to glyphosate. This technique consisted in germinating soybean seeds in filter paper moistened with 100 to 200 muM of glyphosate. Transgenic soybean seeds tolerant to glyphosate germinated normally in this solution and, between 7 and 10 days, started to develop a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Herbicide resistance; Transgenic plants; Biosynthesis. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000900005 |
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| Moreno,Giovane; Santos,Viviane Taisa; Albrecht,Leandro Paiola; Cesco,Victor Salomão. |
| ABSTRACT In Brazil, there are several crops producing oil for biofuel production, such as canola, sunflower, peanut, cotton, castor bean, soybean, among others. There are parameters that indicate the energetic and economic viability for the production of biofuels, and that can be applied, for example, in transgenic soybeans. The present study aimed to evaluate the energetic viability of Intacta RR2 PROTM soybean for biofuel production.Experiments were conducted in the municipalities of Palotina and Marechal Cândido Rondon, both in the State of Paraná. Energy balance calculations were carried out from the production system, estimating energy expenditure, including the agricultural and industrial stages. The inputs used were considered as input of energy,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Bioenergy; Biotechnology; Energy generation; Socioeconomic evaluation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200229 |
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| Nascimento Junior,Vitor Camargo do; Prete,Cássio Egidio Cavenaghi; Nogueira,Marco Antonio. |
| Abstract: The objective of this work was to assess the effects of 1-methylcyclopropene (1-MCP) on traits related with biological nitrogen fixation on 'BRS 268' soybean (Glycine max) subjected to water restriction. Plants were either exposed to drought between 32 (R2) and 47 (R3) days after sowing (DAS) or kept well-watered, in combination with exposure or not to 1-MCP. On the second day under drought (34 DAS), plants from both water conditions were exposed to 1-MCP in a hermetically sealed chamber for 15 hours. Control plants, dry or well-watered, that were not exposed to 1-MCP were kept in a separate chamber. At 36 (R2) and 47 (R3) DAS, shoot and root dry weights, leaf area index, number and dry weight of nodules, total ureides in sap, and N concentration... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradyrhizobium; Glycine max; Inhibitor of ethylene; Nodulation; Water stress.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000700818 |
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| Favetti,Bruna Magda; Butnariu,Alessandra Regina; Foerster,Luís Amilton. |
| This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 °C ± 1 °C, 70 ± 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunaré and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the cultivar that most affected the prolonged in the duration larval, pupal and total cycle, showed lower pupal weight as well as reduction in the intrinsic rate increase. These results contribute to the management of this species in regions of outbreaks in soybean areas. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Development; Glycine max; Monsoy 8757; Southern armyworms. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000200089 |
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| Fugi,Cristina Gomes Quevedo; Lourenção,André Luiz; Parra,José Roberto Postali. |
| A knowledge of the mechanisms of resistance present in genetic materials should help breeding programs in developing cultivars resistant to insects. The biology of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) was studied on leaves of four soybean genotypes with different degrees of resistance to insects. The genotypes evaluated were cultivars IAC 17 and IAC 24, resistant to defoliators and stink bugs, line PI 229358, a source of multiple resistance to insects and used as parent in various lines selected for resistance to A. gemmatalis, and 'IAC PL-1', the susceptible control. The experiments were carried out in the laboratory, under controlled conditions of temperature (25 ± 2ºC), relative humidity (60 ± 10%) and photoperiod (14h). First instar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Velvetbean caterpillar; Host plant resistance. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100006 |
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| Rodrigues,Josiane Isabela da Silva; Arruda,Klever Márcio Antunes; Cruz,Cosme Damião; Piovesan,Newton Deniz; Barros,Everaldo Gonçalves de; Moreira,Maurilio Alves. |
| The objective of this work was to identify by biometric analyses the most stable soybean parents, with higher oil or protein contents, cultivated at different seasons and locations of the state of Minas Gerais, Brazil. Forty-nine genotypes were evaluated in the municipalities of Viçosa, Visconde do Rio Branco, and São Gotardo, in the state of Minas Gerais, from 2009 to 2011. Protein and oil contents were analyzed by infrared spectrometry using a FT-NIR analyzer. The effects of genotype, environment, and genotype x environment interaction were significant. The BARC-8 soybean genotype is the best parent to increase protein contents in the progenies, followed by BR 8014887 and CS 3032PTA276-3-4. Selection for high oil content is more efficient when the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; FT-NIR; Genotype x environment interaction; Heritability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000600475 |
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| Mertz,Liliane Marcia; Henning,Fernando Augusto; Zimmer,Paulo Dejalma. |
| Na cultura da soja existem, diversos patógenos que causam prejuízos à qualidade das sementes. O tratamento de sementes oferece garantia adicional ao estabelecimento da lavoura a custos reduzidos, sendo utilizado, principalmente, com a finalidade de permitir a germinação de sementes infectadas, controlar patógenos transmitidos pela semente e proteger a semente dos fungos do solo. O aumento significativo do tratamento de sementes de soja com fungicidas demanda soluções alternativas, como o uso de bioprotetores, no intuito de reduzir a utilização de pesticidas sintéticos, os riscos aos operadores e os possíveis prejuízos a inoculação com bactérias do gênero Bradyrhizobium. O objetivo deste trabalho foi avaliar a eficácia do tratamento de sementes de soja com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Sanidade de sementes; Protetores biológicos. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000100003 |
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| Guimarães,Ana Paula; Morais,Rafael Fiusa de; Urquiaga,Segundo; Boddey,Robert Michael; Alves,Bruno José Rodrigues. |
| In commercial plantations of soybean in both the Southern and the Cerrado regions, contributions from biological nitrogen fixation (BNF) are generally proportionately high. When using the 15N natural abundance technique to quantify BNF inputs, it is essential to determine, with accuracy, the 15N abundance of the N derived from BNF (the 'B' value). This study aimed to determine the effect of four recommended strains of Bradyrhizobium spp. (two B. japonicum and two B. elkanii) on the 'B' value of soybean grown in pots in an open field using an equation based on the determination of δ15N natural abundance in a non-labelled soil, and estimate of the contribution of BNF derived from the use of 15N-isotope dilution in soils enriched with 15N. To evaluate N2... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradyrhizobium elkanii; Bradyrhizobium japonicum; Glycine max; 'B' value. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500011 |
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| Brighenti,Alexandre Magno; Castro,Cesar de; Gazziero,Dionísio Luiz Pisa; Adegas,Fernando Storniolo; Voll,Elemar. |
| O objetivo deste trabalho foi realizar um levantamento das plantas daninhas infestantes na précolheita da cultura de girassol em lavouras dos municípios do sudoeste goiano (Chapadão do Céu, Jataí e Montividiu) e em Chapadão do Sul, MS. Foram amostradas, no período de maio a junho de 2002, 51 propriedades dos quatro municípios, totalizando uma área de 583 m². As espécies daninhas foram identificadas e contadas mediante a aplicação de um quadrado de 1,0x1,0 m, colocado ao acaso dentro da área ocupada pelas lavouras. Foram obtidos os valores de freqüência, densidade, abundância e índice de importância relativa. Plantas voluntárias de soja e de milho fazem parte da flora daninha infestante de lavouras de girassol dessa região. As famílias Poaceae, Asteraceae e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helianthus annuus; Plantas voluntárias; Glycine max; Zea mays; Germinação na pré-colheita. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000500014 |
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| Mascarenhas,Hipólito Assunção Antonio; Tanaka,Roberto Tetsuo; Carmello,Quirino Augusto de Camargo; Gallo,Paulo Boller; Ambrosano,Gláucia Maria Bovi. |
| Durante três anos agrícolas foi conduzido um experimento em Latossolo Vermelho-Escuro álico, textura argilosa em Mococa, SP, para estudar o efeito da aplicação de doses de calcário dolomítico (0, 3,5 e 7 t ha-1) e de potássio (0, 150, 300, 450 e 600 kg ha-1 de K2O na forma de KCl) sobre a produtividade da soja. Os dois insumos foram aplicados a lanço e incorporados ao solo. Foram utilizados os cultivares IAC-17 e FT-2, ambos com 110 dias de ciclo, cujas sementes foram inoculadas com Bradyrhizobium fixador do N atmosférico. Na análise conjunta, verificou-se que a máxima eficiência técnica seria obtida com 383 e 441 kg ha-1 de K2O, em associação, respectivamente, com 3,5 e 7 t ha-1 de calcário, e também quando as relações de (Ca + Mg)/K foram, em média, de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Produção; Cultivar; Relação de cátions. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000300012 |
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| Pérez,M.A.; Hernández,L.; Kopp,S.; Novo,R.J.; García,S.D.. |
| En la Argentina, el negocio de producir semilla fiscalizada de soja presenta baja rentabilidad, por lo que es necesario un sistema de producción altamente eficiente para poder competir. Al respecto, no se ha evaluado la sensibilidad de algunos cultivares al retraso del momento de cosecha y al perjuicio provocado en esta operación, medido en términos de calidad de sus semillas. El objetivo de este trabajo fue evaluar la calidad fisiosanitaria de semillas de soja de diferentes cultivares en respuesta a tratamientos combinados de periodos de exposición al ambiente y niveles de daño mecánico en la cosecha, en condiciones locales de producción. Se trabajó con semillas de soja de cuatro cultivares con diferentes grados de deterioro ambiental, incidencia fúngica... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soja; Glycine max; Calidad de semillas; Exposición al ambiente; Daño mecánico. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2010000200001 |
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| Menezes,Patricia C. de; Silva,Rouverson P. da; Carneiro,Franciele M.; Girio,Lucas A. da S.; Oliveira,Mailson F. de; Voltarelli,Murilo A.. |
| ABSTRACT Assuring the quality of mechanical soybean harvesting is crucial to ensure that investment in other stages of crop production is converted into profit for the farmer. Because the quality of this operation is related to decreased losses, which may be affected by the combine header used and by the harvesting speed, the aim of the present study was to assess the quality of mechanical soybean harvesting in the Southern Cone of Rondônia, using harvesters with different combine headers and travel speeds via statistical process control. The experiment was performed during the 2015/16 harvest in an agricultural area of the municipality of Cabixi, RO, located at the geographical coordinates 13° 27’ S and 60° 41’ W. The study was designed based on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Statistical process control; Harvester; Glycine max; Losses; Combine header. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001000732 |
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| ZACHRISSON,B.; PARRA,J.R.P.. |
| Avaliou-se a capacidade de dispersão de Trichogramma pretiosum, Riley 1879, em relação a ovos de Anticarsia gemmatalis, Hübner 1818, na cultura da soja, em Piracicaba, São Paulo. Após 24 horas da liberação dos parasitóides, determinou-se a distância média e a área de dispersão para T. pretiosum, atingindo 8 m e 77 m2, respectivamente. Desta forma, a liberação do parasitóide deve ser feita em 130 pontos/ha, para que toda a àrea seja atingida pelo parasitóide. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichogramma pretiosum; Soja; Anticarsia gemmatalis; Controle biológico; Glycine max; Lagarta-da-soja. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161998000100021 |
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| Di Mauro,Antonio Orlando; Oliveira,Roberto Carlos de; Oliveira,João Ademir de. |
| O objetivo deste trabalho foi estudar o controle genético da formação de embriões somáticos da cultivar IAS-5 de soja. O experimento foi conduzido em casa de vegetação, cultivando-se quatro plantas por vaso, sob fotoperíodo de 14 horas e temperatura em torno de 28°C. Efetuaram-se cruzamentos entre os parentais não-embriogênicos (cultivares IAC-6, Paraná e IAC-15) e embriogênico (cultivar IAS-5) e retrocruzamentos para obtenção das gerações F1, F2,RC1P1 e RC1P2. Cotilédones imaturos, com 4-6 mm de comprimento, derivados dos parentais das gerações F1, F2, RC1P1 e RC1P2 foram cultivados em placas de Petri contendo meio N10, por um período de 90 dias, em câmara de crescimento. Os embriões somáticos derivados da indução foram contados, e os números, usados para... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Embrião somático; Hibridação; Herança genética; Controle genético. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001001100008 |
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| Registros recuperados: 889 | |
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