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Data/hora: 01/06/2024 01:30:54

Multivariate technique for determination of soil pedoenvironmental indicators in Southern Amazonas
Provedor de dados: 1
Autores: Oliveira, Ivanildo Amorim de; Marques Júnior, José; Campos, Milton César Costa; Aquino, Renato Eleoterio de; Freitas, Ludmila de; Ferraudo, Antônio Sérgio.
The use of statistical techniques to evaluate soil attribute behaviour is an important tool for choosing the most adequate form of soil management. Thus, the aim of this study was to jointly assess the physical and chemical attributes and the magnetic susceptibility characteristics of three environments and to use multivariate statistics to define which attributes have the greatest potential as environmental change indicators. The study was conducted in three areas: one with archaeological black earth (and planted maize); one with pasture; and one of the forest. Sixty-four (64) deformed and non-deformed soil samples each were collected within these areas, with a 70 x 70 m grid spaced every 10 meters at depths of 0.0-0.2 and 0.4-0.6 m, to determine the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.01.00-5; 5.01.01.06-4; 5.01.01.02-1; 5.01.01.03-0 main component; Amazonian; Archaeological dark earth Manejo e Conservação do Solo; Física do Solo; Química do Solo.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30763

Dinâmica de crescimento da abobrinha italiana em duas estações de cultivo - doi: 10.4025/actasciagron.v33i2.5952
Provedor de dados: 1
Autores: Strassburger, André Samuel; Universidade Federal de Pelotas; Peil, Roberta Marins Nogueira; Universidade Federal de Pelotas; Fonseca, Leandro Andrade da; Universidade Federal de Pelotas; Aumonde, Tiago Zanatta; Universidade Federal de Pelotas; Mauch, Carlos Rogério; Universidade Federal de Pelotas.
O objetivo deste trabalho foi quantificar os índices de crescimento, a produção e a distribuição de matéria seca da cultura da abobrinha italiana cultivada em substrato de casca de arroz in natura com solução nutritiva recirculante, em duas épocas de cultivo: primavera-verão de 2005 e verão-outono de 2006, caracterizadas, respectivamente, como períodos de alta e baixa disponibilidades de radiação solar. Cada tratamento correspondeu a uma época de amostragem, sendo a produção de matéria seca quantificada aos 0, 18, 32, 46 e 68 dias após o transplante (DAT) no cultivo de primavera-verão, e aos 0, 15, 29, 43 e 55 DAT no cultivo de verão-outono. A produção de matéria seca foi maior quando a disponibilidade de radiação solar foi mais elevada. Nessa situação...
Tipo: Pesquisa de Campo
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9 Cucurbita pepo L.; Produção de matéria seca; Hidroponia; Área foliar; Radiação solar; Análise de crescimento 5.01.03.00-8 Cucurbita pepo L.; Dry matter production; Hydroponics; Leaf area; Solar radiation; Growth  analysis.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5952

Compatibility among fungicide treatments on soybean seeds through film coating and inoculation with Bradyrhizobium strains - doi: 10.4025/actasciagron.v32i4.5756
Provedor de dados: 1
Autores: Pereira, Carlos Eduardo; Universidade Estadual de Santa Cruz; Moreira, Fátima Maria de Souza; Universidade Federal de Lavras; Oliveira, João Almir; Universidade Federal de Lavras; Caldeira, Carla Massimo; Universidade Federal de Lavras.
This research evaluated the development of soybean plants grown in a greenhouse, from seeds that were treated with fungicide, film coated and inoculated with Bradyrhizobium. Seeds from the soybean cultivar ‘Vencedora’ were submitted to treatments disposed in a factorial 5 x 3 x 2 design. The seeds were treated with Derosal Plus&amp;reg; with polymer; Tegran&amp;reg; with polymer; Derosal Plus&amp;reg; without polymer, Tegran&amp;reg; without polymer; and without fungicide and without polymer. After the chemical treatment, the seeds were inoculated with peat or liquid inoculants, and without inoculant. The chemical treatments were used either previous to or after the six months of storage. Seed inoculation was performed with CPAC15 and BR29 strains,...
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.01.04-8; 5.01.02.05-2; 5.01.03.00-8; 5.01.03.03-2 Glycine Max; Polymer; Tegran; Derosal Plus; Bradyrhizobium Ciências Agrárias; Agronomia; Microbiologia e Bioquímica do Solo; Defesa Fitossanitária; Fitotecnia; Produção e Beneficiamento de Sementes Glycine Max; Polymer; Tegran; Derosal Plus; Bradyrhizobium.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5756

Mathematical modeling of the drying process of corn ears - doi: 10.4025/actasciagron.v33i4.7079
Provedor de dados: 1
Autores: Corrêa, Paulo Cesar; Universidade Federal de Viçosa; Botelho, Fernando Mendes; Universidade Federal de Viçosa; Oliveira, Gabriel Henrique Horta; Universidade Federal de Viçosa; Goneli, André Luis Duarte; Universidade Federal da Grande Dourados; Resende, Osvaldo; Universidade Federal de Viçosa; Campos, Sílvia de Carvalho; Universidade Federal de Viçosa.
The objective of this work was to study and model the drying process of corn ears at different air temperatures. Thermodynamic properties associated with the drying process of this product were also determined. Corn ears with initial moisture content of 0.45 dry basis (kgw kgdm-1) were dried until they reached a final moisture content of 0.12 (kgw kgdm-1) at temperatures of 45, 55 and 65°C. Traditional models used to describe the drying process of several agricultural products were employed to fit the observed data of the drying process of corn ears. The effective diffusion coefficient (Def) was determined by means of an analytical solution of Fick’s second law. It was concluded that the Logarithmic model was the one that best fit the observed data...
Palavras-chave: 5.00.00.00-4; 5.03.00.00-8; 5.03.03.02-3 Zea mays; Mathematical models; Moisture content Ciências Agrárias; Engenharia Agrícola; Armazenamento de Produtos Agrícolas Zea mays; Mathematical models; Moisture content.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7079

Use of phytoregulators in overcoming macaw palm seed dormancy - doi: 10.4025/actasciagron.v35i4.16385
Provedor de dados: 1
Autores: Oliveira, Túlio Gabriel Soares; Universidade Federal de Lavras - UFLA; Rodrigues Junior, Ailton Gonçalves; Universidade Federal de Lavras - UFLA; Souza, Patrícia Pereira de; Universidade Federal de Viçosa - UFV; Ribeiro, Leonardo Monteiro; Universidade Estadual de Montes Claros - Unimontes.
The macaw palm is a tropical palm with significant potential for biofuel production; however, seed dormancy is a major factor limiting its agro-industrial use. The present study evaluated the effects of phytoregulators in overcoming macaw palm seed dormancy. We evaluated the effects of immersion in solutions of gibberellic acid (GA3) (0, 2000 and 5000 mg L-1) during two exposure times (24 and 48 hours), associated with the removal or maintenance of the opercular tegument, as well as the effects of the associations between GA3 (2000 mg L-1), indole-3-butyric acid (IBA) and benzylaminopurine (BAP) and the effects of repeated applications (one, two or five) of combinations of these phytoregulators. The seeds were sown in vermiculite and incubated in a humid...
Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 Acrocomia aculeata; Germination; GA3; IBA; BAP; Arecaceae Ciências Agrárias; Fitotecnia.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16385

A system to map the risk of infection by Puccinia kuehnii in Brazil
Provedor de dados: 1
Autores: Sumida, Ciro Hideki; Fantin, Lucas Henrique; Gonçalves, Ricardo Marcelo; Canteri, Marcelo Giovanetti; Araujo, Kelly Lana; Giglioti, Éder Antônio.
 Orange rust caused by the fungus Puccinia kuehnii greatly affects sugarcane and causes millions of tons of losses in production. This condition was first reported in Brazil at the end of 2009. The disease is currently present in most of the countries that produce this crop. The aim of this research was to develop risk maps of P. kuehnii infection using temperature and relative humidity data, provided by 389 automatic weather stations throughout the country. A spatial distribution analysis was carried out to assess the number of daily hours of favorable conditions for spore germination in each region. In the central-south region, where the main sugarcane producing states are concentrated, two distinct periods were observed during the three years studied....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.02.00-1 orange rust; Sugarcane; Epidemiology; Prediction. Fitopatologia.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39905

Genetic control of partial resistance to Asian soybean rust doi: 10.4025/actasciagron.v36i1.16919
Provedor de dados: 1
Autores: Martins, Juliana Araújo Santos; Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro; Juliatti, Fernando Cezar; Universidade Federal de Uberlandia.
The genetic control of rust resistance was studied using the Caiapônia x IAC-100 and Luziânia x Potenza crosses. The F2 and F3 generations were evaluated. Rust severity was quantified through visual assessment of the middle third of three leaflets per plant and performed by three different evaluators; the average score was calculated foreach individual plant. From these data, we estimated the mean and variance of the genetic components by employing the weighted least squares method. The estimated number of genes and broad- and narrow-sense heritabilities were also obtained. It was concluded that rust resistance is a characteristic controlled by 2 to 23 genes that are predominantly dominant. The estimate of narrow-sense heritability was greater than 70% for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.02.01-0; 5.01.03.05-9 Glycine max; Phakopsora pachyrhizi; Dominance variance; Heritability; Race non-specific disease resistance Melhoramento Vegetal e Fitopatologia.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16919

Older leaf tissues in younger plants are more susceptible to soybean rust
Provedor de dados: 1
Autores: Xavier, Sheila Ariana; Martins, Daiane Cristina; Fantin, Lucas Henrique; Canteri, Marcelo Giovanetti.
The aim of this study was to clarify the relationship between soybean leaf/plant age and the susceptibility to infection by Phakopsora pachyrhizi. Two studies were conducted in the greenhouse during the 2009/2010 season using the BRS 232 cultivar. The experimental design for Study 1 was fully randomized in a 2 x 3 factorial arrangement (phenological stage x age of the 4th, 5th and 6th trifoliate at the time of inoculation), and in Study 2, the experimental design was fully randomized with five treatments (T) and four replicates. The variables assessed were disease severity, number of lesions, uredinia per lesion, and viable spores. In Study 1, it was observed that disease severity was lower when the plant was in the growth stage V6 (11.4%), compared to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.02.00-1 Phakopsora pachyrhizi; Phenological stage; Age of trifoliates Fitopatologia.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30638

The effect of high dilutions of Pulsatilla nigricans on the vigour of soybean seeds subjected to accelerated aging - doi:  10.4025/actasciagron.v34i2.13043
Provedor de dados: 1
Autores: Silva, Hingrid Ariane da; Universidade Estadual de Maringá; Valderrama, Angela Parizotto; Universidade Estadual de Maringá; Moreira, Flavia Carolina; Universidades Estadual de Maringá; Marques, Rosimar Maria; Universidade Estadual de Maringá; Reis, Bruno; Universidade Estadual de Maringá; Bonato, Carlos Moacir; Universidade Estadual de Maringá.
The aim of this study was to evaluate the effect of high dilutions of Pulsatilla nigricans in dinamisations 6, 12, 18, 24 and 30 CH on the vigour of soybean seeds subjected to accelerated aging. The experiment was conducted according to a randomised design with 6 treatments and 10 replicates. The treatments consisted of dinamisations 6, 12, 18, 24 and 30 CH and a distilled-water control. After the treatments, the seeds were subjected to accelerated aging (48h at 42ºC) in a growth chamber (25 ± 2ºC). The study evaluated the germination, the length of primary roots and shoots, the fresh weight of roots and shoots and the enzymatic activity of peroxidase (POX-EC1.11.1.7). The variables were analysed by ANOVA, and the means were compared using the Scott-Knott...
Tipo: Pesquisa controlada
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.02.01.06-9 dinamisation; Accelerated aging; Germination  growth; Homeopathy; Glycine max Fisiologia de Plantas Cultivadas.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13043

The influence of organic matter from swine wastewater on the interaction and transport of alachlor in soil - doi: 10.4025/actasciagron.v35i3.16374
Provedor de dados: 1
Autores: Dal Bosco, Tatiane Cristina; Universidade Tecnológica Federal do Paraná, Câmpus Londrina; Sampaio, Silvio César; Universidade Estadual do Oeste do Paraná; Coelho, Silvia Renata Machado; Universidade Estadual do Oeste do Paraná; Corrêa, Marcus Metri; Universidade Federal Rural de Pernambuco; Netto, André Maciel; Universidade Federal de Pernambuco; Cosmann, Natássia Jersak; Universidade Estadual do Oeste do Paraná.
This study evaluated the effects of total and dissolved organic matter produced from two swine wastewater treatment systems, a biodigester and a manure lagoon, on the adsorption, desorption, and leaching of alachlor (2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide) in soil. It was used the batch equilibrium method to test adsorption and desorption, and the results are presented in Freundlich isotherms. It also used disturbed soil columns to evaluate the miscible displacement of alachlor in soil treated with total and dissolved organic matter. This assay was used to monitor the concentration of alachlor in the leached material, the amount of total organic carbon, and the pH. The addition of swine wastewater promoted greater adsorption and...
Tipo: Pesquisa empírica de laboratório
Palavras-chave: 5.00.00.00-4; 5.03.00.00-8; 5.03.04.03-8 adsorption; Hydro-dispersive parameters; Infrared spectroscopy; Leaching; Pesticide Reúso de águas residuárias  pesticidas  água residuária de suinocultura  matéria orgânica.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16374

Modeling of the shrinkage kinetics of coffee berries during drying - doi: 10.4025/actasciagron.v33i3.7080
Provedor de dados: 1
Autores: Oliveira, Gabriel Henrique Horta; Instituto Federal de Brasília; Corrêa, Paulo Cesar; Universidade Federal de Viçosa; Botelho, Fernando Mendes; Universidade Federal de Mato Grosso; Goneli, André Luis Duarte; Universidade Federal da Grande Dourados; Afonso Júnior, Paulo Cesar; Embrapa Café; Campos, Sílvia Carvalho; EMBRAPA Agrosilvipastoril.
The effects of drying conditions on the shrinkage of Coffea Arabica L., cultivar Catuaí Vermelho, were studied. An exponential model derived from the kinetic model was used to describe the shrinkage kinetics. In addition, an equation was proposed to describe the relationship between the superficial areas and weights of the coffee berries. Coffee berries were dried at temperatures (T) of 35, 45, 55 and 65ºC and at relative humidities (φ) of 25, 35, 45 and 55%, forming 16 different sets of conditions, with an initial moisture content for all conditions of 2.27 dry basis (d.b.), dried until 0.11 d.b. Changes in the product dimensions were measured continuously during drying. Surface area-to-volume ratio values increased with moisture content decrease. The...
Palavras-chave: 5.00.00.00-4; 5.03.00.00-8; 5.03.03.02-3 surface area-to-volume ratio; Post-harvest; Activation energy; Coffea arabica L; Shrinkage Ciências Agrárias; Engenharia Agrícola; Armazenamento de Produtos Agrícolas surface area-to-volume ratio; Post-harvest; Activation energy; Coffea arabica L; Shrinkage.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7080

Ação do enxofre em chuva ácida simulada sobre parâmetros morfofisiológicos de Phaseolus vulgaris L. (Fabaceae) - doi: 10.4025/actasciagron.v32i3.4273
Provedor de dados: 1
Autores: Dias, Bruna Borba; Universidade Federal de Santa Catarina; Leite, Maysa de Lima; Universidade Estadual de Ponta Grossa, Paraná; Farago, Paulo Vitor; Universidade Estadual de Ponta Grossa, Paraná; Oliveira, André Vicente de; Universidade Estadual de Ponta Grossa, Paraná; Beruski, Gustavo Castilho; Universidade Estadual de Ponta Grossa, Paraná.
O presente trabalho teve o objetivo de analisar os efeitos do enxofre e da chuva ácida simulada sobre a estrutura foliar do feijoeiro (Phaseolus vulgaris L), nos aspectos morfoanatômicos, teores de clorofila a, b,  total e feofitina. As plantas-controle sofreram simulações de chuva com pH 6,0 e as plantas-teste sofreram simulação de chuva ácida com pH 3,0. As concentrações de clorofila a, b e total diminuíram no estádio de floração (R6). Já, no estádio R7, onde surgem as primeiras vagens, os teores aumentaram, indicando possível resistência e/ou adaptação dos espécimes às simulações ácidas. O tratamento ácido afetou a concentração de clorofila que foi degradada por processos oxidativos sem a sua conversão em feofitina. Também se observou diminuição na...
Palavras-chave: 5.00.00.00-4; 5.01.03.06-7; Phaseolus vulgaris; Chuva ácida; Enxofre; Clorofila; Anexos epidérmicos Ciências Agrárias e Fisiologia de Plantas Cultivadas Phaseolus vulgaris; Acid rain; Sulfur; Chlorophyll; Epidermal annexes.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4273

Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding
Provedor de dados: 1
Autores: Melo, Rita Carolina de; Coimbra, Jefferson Luís Meirelles; Trevisani, Nicole; Guidolin, Altamir Frederico; Kavalco, Sydney Antonio Frehner.
The present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 VCU trials; Variance analysis; Mathematical expectations. Melhoramento Vegetal.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791

Chemical characterization and evaluation of the antioxidant potential of gabiroba jam (Campomanesia xanthocarpa Berg) - doi: 10.4025/actasciagron.v35i1.14389
Provedor de dados: 1
Autores: Santos, Marli da Silva; Universidade Federal do Paraná; Lima, Jair José de; Universidade Federal do Paraná; Petkowicz, Carmen Lúcia de Oliveira; Universidade Tecnológica Federal do Paraná; Cândido, Lys Mary Bileski; Universidade Federal do Paraná/Universidade Tecnológica Federal do Paraná.
Four formulations of gabiroba jam were processed, and their physicochemical and functional characteristics, rheological profile and jam acceptance were assessed. The physicochemical and chemical characteristics evaluated were water activity, titratable acidity, pH, reducing and non-reducing sugars, proteins, ashes, dietary fibers, color, and firmness. For functional analyses of the formulations, vitamin C, phenolic compounds and carotenoid contents were determined. The ABTS+ and DPPH· methods were employed to evaluate the antioxidant potential. Rheological analysis was performed in a HAAKE RS 75 Rheoestress rheometer with a plate/plate sensor. The flow curve behavior was adjusted using the Power Law and Herschel-Bulkley models. Sensory analyses were...
Tipo: Pesquisa
Palavras-chave: 5.00.00.00-4; 5.02.04.00-9; 5.02.02.00-6 gabiroba; Jam; Antioxidant activity; Rheological profile ciências agrarias; Ecnologia e Utilização de Produtos Florestais; Manejo Florestal.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/14389

Data transformation: an underestimated tool by inappropriate use
Provedor de dados: 1
Autores: Ribeiro-Oliveira, João Paulo; Santana, Denise Garcia de; Pereira, Vanderley José; Santos, Carlos Machado dos.
There are researchers who do not recommend data transformation arguing it causes problems in inferences and mischaracterises data sets, which can hinder interpretation. There are other researchers who consider data transformation necessary to meet the assumptions of parametric models. Perhaps the largest group of researchers who make use of data transformation are concerned with experimental accuracy, which provokes the misuse of this tool. Considering this, our paper offer a study about the most frequent situations related to data transformation and how this tool can impact ANOVA assumptions and experimental accuracy. Our database was obtained from measurements of seed physiology and seed technology. The coefficient of variation cannot be used as an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 assumptions; Coefficient of variation; Criteria for data transformation; Parametric and nonparametric statistics; Robustness. Análise de Dados.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35300

Water balance model and eucalyptus growth simulation in the rio doce basin, Brazil - doi: 10.4025/actasciagron.v35i4.16955
Provedor de dados: 1
Autores: Silva, Welliam Chaves Monteiro; Universidade Federal de Viçosa; Ribeiro, Aristides; Universidade Federal de Viçosa; Neves, Júlio Cesar Lima; Universidade Federal de Viçosa; Barros, Nairam Felix de; Universidade Federal de Viçosa; Leite, Fernando Palha; Celulose Nipo Brasileira S.A.
Although the 3-PG model is widely used for forest productivity calculations, there are processes that do not present appropriate physical treatment. The aim of this study was to generate a tool to improve the water balance calculation in the model to enhance the energy balance and transpiration process. The calculation of transpiration was modified to account for variations in solar radiation with the inclination and azimuth of the terrain; the vapor pressure deficit was changed based on the relative humidity and air temperature; and the stomatal conductance varied according to solar radiation, vapor pressure deficit and air temperature. The water storage in the soil varied with the depth of the root system and the total water availability (TWA) in the...
Palavras-chave: 5.00.00.00-4; 5.01.05.00-0 tilt surface; Solar radiation; Stomatal resistance; Ecophysiological model Agrometeorologia.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16955

Uso da manipueira como fonte de potássio na cultura da alface (Lactuca sativa L.) cultivada em casa-de-vegetação - doi: 10.4025/actasciagron.v32i4.4819
Provedor de dados: 1
Autores: Santos, Max Henrique Vieira dos; Universidade Federal de Alagoas; Araújo, Afranio César de; Universidade Federal de Alagoas]; Santos, Deon Moreno Ribeiro dos; Universidade Federal de Alagoas; Lima, Nadielan da Silva; Universidade Federal de Alagoas; Lima, Cícero Luiz Calazans de; Universidade Federal de Alagoas; Santiago, Antônio Dias; EMBRAPA/CPATC.
O presente trabalho foi realizado durante o ano de 2006 na área da Embrapa/UEP/Rio Largo, situada no Campus Delza Gitaí - Unidade Acadêmica Centro de Ciências Agrárias – UFAL, com o objetivo de avaliar a utilização da manipueira - resíduo gerado no processamento da mandioca (Manihot esculenta Crantz) como fonte de potássio na cultura da alface (Lactuca sativa L). O experimento foi conduzido em casa-de-vegetação, em delineamento inteiramente casualizado, com seis tratamentos e seis repetições, sendo os tratamentos: 0, 100, 200, 300, 400 e 500 mL de manipueira por vaso de 5 L. Utilizou-se a cultivar de alface Regina SF 3500, sendo as avaliações realizadas 33 dias após o transplantio. Foram analisadas as características: área foliar, massa fresca das folhas,...
Tipo: Pesquisa de campo
Palavras-chave: 5.00.00.00-4; 5.01.01.06-4; 5.01.03.00-8; Manihot esculenta; Lactuca sativa; Potássio Ciências Agrárias Manihot esculenta; Lactuca sativa; Potassium.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4819

Pochonia chlamydosporia promotes the growth of tomato and lettuce plants
Provedor de dados: 1
Autores: Dallemole-Giaretta, Rosangela; Freitas, Leandro Grassi de; Lopes, Everaldo Antonio; Silva, Marliane de Cássia Soares da; Kasuya, Maria Catarina Megumi; Ferraz, Silamar.
The fungus Pochonia chlamydosporia is one of the most studied biological agents used to control plant-parasitic nematodes. This study found that the isolates Pc-3, Pc-10 and Pc-19 of this fungus promote the growth of tomato and lettuce seedlings. The isolate Pc-19 colonized the rhizoplane of tomato seedlings in only 15 days and produced a large quantity of chlamydospores. This isolate was able to use cellulose as a carbon source, in addition to glucose and sucrose. Scanning electron microscopy (SEM) revealed that hyphae of the P. chlamydosporia isolate Pc-10 penetrated the epidermal cells of the tomato roots. These three P. chlamydosporia isolates promote the growth of tomato and lettuce.  
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9 Lactuca sativa; Nematophagous fungus; Rhizosphere colonization; Solanum lycopersicum; Verticillium chlamydosporium Ciências Agrárias; Agronomia.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/25042

Modeling the incidence of citrus canker in leaves of the sweet orange variety ‘Pera’
Provedor de dados: 1
Autores: Pompeu, Danielle da Silva; Guedes, Terezinha Aparecida; Janeiro, Vanderly; Gonçalves-Zuliane, Aline Maria Orbolato; Nunes, William Mario de Carvalho; Carneiro, José Walter Pedroza.
Citrus canker, caused by the bacterium Xanthomonas citri subsp. citri, is one of the most important diseases of citrus. The use of resistant genotypes plays an important role in the management and control of the disease and is the most environmentally sustainable approach to disease control. Citrus canker incidence was recorded in an experiment on nine genotypes of the sweet orange variety ‘Pera’ grafted on four rootstocks. The experiment was started in 2010 and the incidence of citrus canker on the leaves was recorded on a quarterly basis. The incidence data from the experiment were analyzed using a zero-inflated Beta regression model (RBIZ), which is the appropriate method to describe data with large numbers of zeros. Based on the residual analysis, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.02.00-1; 1.00.00.00-3; 1.02.03.00-1 zero-inflated Beta distribution; Mixture models; Inflated Beta regression model; Modeling proportions Fitossanidade; Probabilidade e Estatística Aplicadas.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28535

Efeito da temperatura e umidade do substrato na viabilidade de Sclerotium rolfsii - DOI: 10.4025/actasciagron.v32i2.2325
Provedor de dados: 1
Autores: Martins, Marlon Vagner Valentim; Incaper; Silveira, Silvaldo Felipe; UENF; Mussi-Dias, Vicente; UENF; Vieira, Henrique Duarte; UENF.
Avaliou-se a erradicação de escleródios de Sclerotium rolfsii em diferentes temperaturas e umidades do substrato. Testaram-se umidades de 5, 6, 9 e 11 (equivalentes a -5, -3, -1 e -1/3 Bar) e mais 0 e 18% de umidade. As temperaturas testadas foram 40, 48, 52 e 58&amp;deg;C, no tempo de 30 min., seguidos de resfriamento em balcão, em condições de laboratório. Avaliou-se a germinação em meio BDA salino. A 0% de umidade do substrato, nenhuma temperatura foi eficiente na inativação dos escleródios. Para todas as outras umidades testadas, porém, os escleródios foram erradicados em temperaturas acima de 52&amp;deg;C. De todas as quatro temperaturas testadas, apenas a menor (40&amp;deg;C) não inativou os escleródios do patógeno. A 48&amp;deg;C, a erradicação dos...
Palavras-chave: 5.00.00.00-4; 5.01.02.01-0 Escleródio; Solarização do solo; Erradicação Fitopatologia Sclerotia; Soil solarization; Eradication.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2325

Image analysis of coffee seeds submitted to the LERCAFE test
Provedor de dados: 1
Autores: Ribeiro, Bárbara Gomes; Abrahão, Christovão Pereira; Nery, Marcela Carlota; Nascimento, Rodrigo Marques; Rezende, Juliana Costa; Fialho, Cíntia Maria Teixeira.
The aim of this experiment was to quantify the stained areas of coffee seeds submitted to the LERCAFE test using image analysis. The seeds used were of the Catuaí Vermelho IAC 99 and Paradise cultivars. The physiological quality of the lots was assessed using germination tests, moisture content and a germination speed index. The LERCAFE test was conducted using seeds without parchment immersed in a solution of 3% sodium hypochlorite for 3 hours. Color photographs (RGB) with a resolution of 5 MPx were taken of each seed. The seeds were visually evaluated, and the functions generated from the analyses of the stained and non-stained regions were quantified by the Matlab R2009b program. Classification models were developed based on the Fisher Linear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.03.00-8; 5.01.03.03-2 determinants functions; Sodium hypochlorite; Pixels Produção e Beneficiamento de Sementes.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28268

Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity
Provedor de dados: 1
Autores: Brito, Cristiane Dantas de; Loureiro, Marta Bruno; Teles, Clarissa Abreu Santosw; Schuck, Mariane Ruzza; Fernandez, Luzimar Gonzaga; Castro, Renato Delmondez de.
Jatropha curcas is an oil-rich Euphorbiaceae seed species renowned for its apparent tolerance to environmental stresses. It is considered a promising source of renewable feedstock for biodiesel production in the Brazilian semiarid region where crop establishment requires a better understanding of the mechanisms leading to proper seed and plant behavior under water restrictive conditions. This study describes physiological and cytological profiles of J. curcas seeds imbibed in water restriction conditions by means of osmotic stress or osmoconditioning. Seeds were characterized by size, weight, moisture content and dry mass, germinability, and cell cycle activation by means of tubulin and microtubule cytoskeleton accumulation. Osmoconditioning at -0.8 MPa...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.03.06-7; 5.01.03.03-2 Jatropha sp.; Germination; Drought stress; Cell cycle Ciências Agrárias.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19438

The effects of soil fumigation on the growth and mineral nutrition of weeds and crops - doi:  10.4025/actasciagron.v34i2.12971
Provedor de dados: 1
Autores: Santos, Edson Aparecido dos; Universidade Estadual Paulista; Ferreira, Lino Roberto; Universidade Federal de Viçosa; Costa, Mauricio Dutra; Universidade Federal de Viçosa; Santos, José Barbosa dos; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Silva, Marliane de Cássia Soares da; Universidade Federal de Viçosa; Aspiazú, Ignacio; Universidade Estadual de Montes Claros.
Weeds and soil microorganisms interact with each other in the soil/root interface, promoting the development and establishment of both. The objective of this study was to evaluate the growth and nutrient accumulation in eight species of weeds (Ageratum conyzoides L., Bidens pilosa L., Cenchrus echinatus L., Conyza bonariensis L., Echinochloa crus-galli L., Eleusine indica L. Ipomoea grandifolia L. and Lolium multiflorum L.) and in bean and corn crops grown for 50 days in a substrate fumigated with methyl bromide. Assessments relating to the height, leaf area, leaf number, dry weight of shoots and roots and relative content of nutrients were carried out 50 days after seedling emergence. A positive effect of soil fumigation was observed on the growth, leaf...
Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 rhizosphere; Soil microorganisms; Conyza bonariensis; Methyl bromide Matologia.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/12971

Effects of climate change on irrigation adoption in Brazil
Provedor de dados: 1
Autores: Cunha, Dênis Antônio da; Universidade Federal de Viçosa; Coelho, Alexandre Bragança; Universidade Federal de Viçosa; Féres, José Gustavo; Instituto de Pesquisa Econômica Aplicada; Braga, Marcelo José; Universidade Federal de Viçosa.
http://dx.doi.org/10.4025/actasciagron.v36i1.15375The aim of this paper is to analyse the effects of climate change on irrigation adoption in Brazil. Temperature and precipitation projections for the 2010-2099 periods were employed under a number of different climate scenarios according the 4th Assessment Report of Intergovernmental Panel on Climate Change (IPCC). The results show that irrigation adoption will be affected by climate change. Given current conditions, irrigation has generally been adopted in Brazil to cope with reduced precipitation and temperature variations. The estimated irrigation probabilities in the future scenarios were quite different across Brazilian regions. The main explanation for this pattern is the distinct climatic conditions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.03.02.01-9 climatic variability; Adaptation; Irrigated farming Ciências Agrárias; Irrigação; Clima.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15375

Processamento de produto farináceo a partir de beterrabas submetidas à secagem estacionária - doi: 10.4025/actasciagron.v33i2.4885
Provedor de dados: 1
Autores: Araújo Filho, Djalma Gomes de; UEPG; Eidam, Tânia; UEPG; Borsato, Aurélio Vinicios; Embrapa Pantanal; Raupp, Dorivaldo da Silva; UEPG.
O consumo de hortaliças desidratadas tem sido estimulado pela praticidade de uso, maior tempo de conservação comparado à in natura e possibilidade de aproveitamento da produção excedente, reduzindo efeitos de sazonalidade. A pesquisa propôs produzir uma farinha de beterraba com a aplicação de procedimentos tecnológicos simples e disponíveis para grande parte dos pequenos produtores. Foram comparados diferentes cortes de beterraba, longitudinais (long 2; 4,5; 9 mm) e transversais (trans 2; 4,5; 9 mm), quanto ao tempo de secagem e de trituração, taxa de secagem, rendimento em produto farináceo e sua granulometria. Considerando que a taxa de secagem foi baixa, que o tempo de permanência do produto no secador foi baixo, que a farinha apresentou baixa...
Tipo: Pesquisa aplicada para pequeno produtor
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.03.00-8 farinha de beterraba; Secagem; Agroindústria; Alimento funcional Fitotecnia e Produção Vegetal beet flour; Drying; Agroindustry; Functional food.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4885

Plant regeneration and histological study of the somatic embryogenesis of sugarcane (Saccharum spp.) cultivars RB855156 and RB72454 - doi: 10.4025/actasciagron.v36i1.16342
Provedor de dados: 1
Autores: Alcantara, Giovana Bomfim de; Universidade Federal do Paraná; Dibax, Roberson; Universidade Federal do Paraná; Bespalhok Filho, João Carlos; Universidade Federal do Paraná; Daros, Edelclaiton; Universidade Federal do Paraná.
The development of an efficient regeneration system is crucial for the genetic transformation of sugarcane. The aims of this study were to regenerate plants from somatic embryos and analyze the origin and division pattern of cells during the different embryonic developmental stages of the sugarcane cultivars RB855156 and RB72454. For both cultivars, the best results for embryogenic callus induction were obtained with explant cultures on culture medium containing 13.5 µM 2,4-dichlorophenoxyacetic acid (2,4-D) followed by callus culture on solid medium with 4.5 µM 2,4-D. A higher rate of shoot induction was observed in RB855156 with the addition of 8.9 and 17.8 µM benzylaminopurine (BAP); this higher rate was also observed in RB72454 with the addition of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.03.00-8; 5.01.03.05-9; Tissue culture; Somatic embryos; Anatomy; 2 4-D; Poaceae Ciências Agrárias  Fitotecnia  Melhoramento Vegetal.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16342

Behavior of Orius insidiosus preying on Aphis gossypii reared on transgenic and conventional cotton varieties
Provedor de dados: 1
Autores: Veiga, Ana Carolina Pires; Universidade Estadual Paulista “Julio de Mesquita Filho”; Laurentis, Valéria Lucas de; Universidade Estadual Paulista “Julio de Mesquita Filho”; Vacari, Alessandra Marieli; Universidade Estadual Paulista “Julio de Mesquita Filho”; Volpe, Haroldo Xavier Linhares; Universidade Estadual Paulista “Julio de Mesquita Filho”; Ramalho, Dagmara Gomes; Universidade de São Paulo; De Bortoli, Sergio Antonio; Universidade Estadual Paulista “Julio de Mesquita Filho”.
The objective of this study was to evaluate the functional response of Orius insidiosus preying on the third and fourth instars of Aphis gossypii nymphs that were reared on transgenic NuOPAL (Bollgard I Event 531) and conventional Buriti cotton varieties. Fifty O. insidiosus female bugs aged 12–24h were distributed into five different Petri dishes with different densities of A. gossypii (2, 4, 8, 16, and 32 nymphs per plate) for each cotton variety. The number of prey consumed was evaluated over the course of 12h, with a final assessment at 24h. The handling times (Th) and attack rates (a) were 0.0697h and 1.1862h-1, respectively, for the Buriti variety and 0.0713h and 0.3030h-1, respectively, for the NuOPAL variety. The average number of prey consumed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.01.02.00-1; 5.01.02.02-8 cotton aphid; Functional response; Gossypium hirsutum; Minute pirate bug; Transgenic plants Ciências Agrárias  Fitossanidade e Entomologia Agrícola.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17466

Methods to determine forage intake by lambs on Italian ryegrass
Provedor de dados: 2
Autores: Rosa, Aline Tatiane Nunes da; Rocha, Marta Gomes da; Pötter, Luciana; Graminho, Larissa Arnhold; Bergoli, Tuani Lopes; Moterle, Paulo Henrique.
This study was conducted to evaluate the use of chromium oxide and the content of fecal nitrogen to estimate forage intake by female lambs on Italian ryegrass pasture. The pasture was managed under different forage allowances (FA): 6, 9 and 12% BW. The experiment was a randomized split-split plot design, in which the forage allowances were considered as main plots, the phenological stages as subplots and methods to determine intake as sub-subplots. Forage intake, in the ryegrass vegetative stage, is independent of forage allowance. Lower allowances limit forage intake from the pre-flowering stage, while at the reproductive stage, intake was lower in FA6, intermediate in FA9 and higher in FA12. The estimation of organic matter intake by lambs on Italian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2; 5.04.04.00-8 Lolium multiflorum Lam.; Fecal nitrogen; Lambs; Chromium oxide; Intermittent grazing.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28051

Mesquite pod meal in sheep diet: intake, apparent digestibility of nutrients and nitrogen balance
Provedor de dados: 2
Autores: Santos, Edileusa de Jesus do; Pereira, Mara Lúcia Albuquerque; Almeida, Paulo José Presidio; Moreira, Jeruzia Vitória; Souza, Andréia Carolina Santos de; Pereira, César Augusto Ramos.
Eight Santa Ines sheep were assigned to two 4 x 4 Latin squares, to evaluate the effects of replacing elephant grass silage with different levels of mesquite pod meal (MDM) (15, 30 and 45% DM) on intake, apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), acid detergent fiber (ADF), neutral detergent fiber (NDF), total carbohydrates (TC) and non-fiber carbohydrates (NFC) and the nitrogen balance. There was a linear increase (p &lt; 0.05) in the intake of DM, OM, CP, ADF, NDF, NFC and TC according to the addition of MPM to the diet. The digestibility of DM, OM and CP increased (p &lt; 0.05) with the addition of MDM. We observed a positive linear effect (p &lt; 0.05) for the nitrogen intake. The addition of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2 forage conservation; Prosopis juliflora; Silage.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24466

Production and economic viability of feedlot beef cattle categories
Provedor de dados: 2
Autores: Santos, Petrônio Batista dos; Santana Junior, Hermógenes Almeida de; Araújo, Marcos Jacome de; Oliveira, Aracele Prates de; Freitas, Tiago Brandão; Viana, Pablo Teixeira.
This study was realized to evaluate the production and economic viability of finished beef cattle in feedlot in the Cerrado biome of Piauí State, Brazil. One hundred and fifty cattle -50 bulls (B) with an body weight of 283.0 ± 20.82 kg, at 30 months of age; and 100 cull cows (CC) with an body weight of 296.1 ± 17.80 kg, at 100 months of age- were used in a completely randomized design. The animal performance indicators for the evaluation of economic viability were initial age (months), slaughter age (months), was initial body weight (kg), final body weight (kg), daily feed intake (kg animal-1; kg kg-1 BW), diet cost (R$ kg-1 of diet), cost of kg produced (R$ kg-1 produced), and average price of the kg of meat for finishing (R$). The CC consumed more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2; 5.04.05.00-4; Performance; Production systems; Rate of return.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/33452

Growing tropical forage legumes in full sun and silvopastoral systems
Provedor de dados: 2
Autores: Araújo, Saulo Alberto do Carmo; Silva, Tatiana Oliveira da; Rocha, Norberto Silva; Ortêncio, Marluci Olício.
Growth was evaluated three tropical forage legumes in two cropping systems: silvopastoral system (SSP) and full sun. A completely randomized design was adopted in factorial three legumes (estilosanthes cv. Campo Grande (Stylozanthes macrocephala x Stylozanthes capitata), tropical kudzu (Pueraria phaseoloides (Roxb.) Benth) and macrotiloma (Macrotyloma axillare cv. Java)) x two farming systems, with 4 repetitions. A eucalyptus SSP already deployed, with spatial arrangement of 12 x 2 m between trees was used. Legumes were planted in January 2014 a uniform cut being made in May 2014. The court assessment was carried out 125 days after the uniformity cut. There was difference for mass production of dry legumes (PMMSL) between cultivation systems, evidencing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2 Fabaceae; Shading; Forage production; Chemical composition.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32537

Correlation between performance and feeding behavior of feedlot lambs fed without roughage diet
Provedor de dados: 2
Autores: Cardoso, Elves de Souza; Santana Junior, Hermógenes Almeida de; Oliveira, Aracele Prates de; Ferreira, Antônio Hosmylton Carvalho de; Oliveira, Zeliana Fernandes de; Freitas, Tiago Brandão.
The objective was to evaluate the correlation between performance and feeding behavior of feedlot castrated Santa Inês lambs fed without roughage diet, weighing 20 ± 1,8 kg and four months of age (± 0,34). A completely randomized design was adopted. Correlations were obtained by Pearson’s linear correlation analysis and the t test, and processed on SAS software (version 9.2). The variables number of rumination chews per cud, number of cuds ruminated per day, speed of each chew, and number of rumination cuds per day were positively correlated with the variation in body weight (p &lt; 0.05). For number of cuds ruminated per day, a positive correlation was found with the variations in body weight. Initial and final body weights were positively correlated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2; 5.04.03.00-1 concentrate; Intake; Weight gain; Sheep.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/33453

Qualidade do sêmen em tilápia do Nilo (Oreochromis niloticus), alimentadas com dietas contendo diferentes níveis de vitamina C - doi: 10.4025/actascianimsci.v32i3.7836
Provedor de dados: 2
Autores: Mataveli, Marcela; UEM; Moraes, Gentil Vanini de; UEM; Streit Junior, Danilo Pedro; Universidade Federal do Rio Grande do Sul; Ribeiro, Ricardo Pereira; UEM; Gasparino, Eliane; UEM.
A vitamina C atua na proteção de danos celulares provocados pelos radicais livres, sendo a suplementação considerada essencial para a maioria das espécies de peixes, uma vez que não a sintetizam em função da ausência da enzima L-gulonolactona oxidase. Assim, avaliou-se o efeito da suplementação de 0, 75, 150 e 225 mg de vitamina C kg-1 de ração na qualidade do sêmen em tilápias do Nilo (Oreochromis niloticus). Os parâmetros quali-quantitativos do sêmen não foram influenciados pela suplementação de vitamina C, exceto a motilidade progressiva que aumentou linearmente com adição de vitamina C. Conclui-se que os reprodutores de tilápias do Nilo devem ser suplementados com 225 mg de vitamina   C kg-1 de ração.
Tipo: Pesquisa de campo e análise laboratorial
Palavras-chave: 5.00.00.00-4; 5.05.00.00-7 Antioxidante; Radicais livres; Reprodução; Suplementação 5.05.04.00-2 Antioxidant; Free radicals; Reproduction; Supplementation.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7836

The commercial fishing fleet using the middle stretch of the Madeira river, Brazil - doi: 10.4025/actascibiolsci.v34i3.8119
Provedor de dados: 3
Autores: Cardoso, Renato Soares; Instituto Federal de Educação, Ciência e Tecnologia do Amazonas; Freitas, Carlos Edwar Carvalho; Universidade Federal do Amazonas.
Fishery resources in the Amazon region are exploited by both industrial and artisanal fishing fleets, that differ in their use of fishing gear and fishing grounds. Data on the physical characteristics of the vessels belonging to the fishing fleets using the Solimões/Amazonas river and estuaries are limited. This article presents an analysis of some physical characteristics of the commercial fishery fleet using the middle stretch of the Madeira river. Data were quantitative collected using interviews of the owners and/or skippers of fishery vessels between January 2003 and May 2004. The boats used for fishing in the region varied in size from 8 to 14 meters and had an average storage capacity ranging from 4.5 to 6.1 tons. Canoes were also used for fishing...
Palavras-chave: 5.00.00.00-4; 5.06.00.00-1; 5.06.02.04-7 Inland fishery; Amazonian; Commercial fishery; Fishing capacity Ciências Agrárias; Manejo e Conservação de Recursos Pesqueiros de Águas Interiores inland fishery; Amazonian; Commercial fishery; Fishing capacity Ciências Biológicas.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8119