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	Provedor de dados 1 (27) 2 (6) 3 (1) Autor Canteri, Marcelo Giovanetti (2) Corrêa, Paulo Cesar; Universidade Federal de Viçosa (2) Fantin, Lucas Henrique (2) Freitas, Tiago Brandão (2) Goneli, André Luis Duarte; Universidade Federal da Grande Dourados (2) Oliveira, Aracele Prates de (2) Santana Junior, Hermógenes Almeida de (2) Abrahão, Christovão Pereira (1) Afonso Júnior, Paulo Cesar; Embrapa Café (1) Alcantara, Giovana Bomfim de; Universidade Federal do Paraná (1) Almeida, Paulo José Presidio (1) Aquino, Renato Eleoterio de (1) Araujo, Kelly Lana (1) Araújo Filho, Djalma Gomes de; UEPG (1) Araújo, Afranio César de; Universidade Federal de Alagoas] (1) Araújo, Marcos Jacome de (1) Araújo, Saulo Alberto do Carmo (1) Aspiazú, Ignacio; Universidade Estadual de Montes Claros (1) Aumonde, Tiago Zanatta; Universidade Federal de Pelotas (1) Barros, Nairam Felix de; Universidade Federal de Viçosa (1) Mais... Palavra-chave 5.00.00.00-4 (34) 5.01.00.00-9 (8) 5.01.03.00-8 (4) 5.03.00.00-8 (3) 5.04.00.00-2 (3) 5.01.01.06-4 (2) 5.01.02.00-1 (2) 5.01.03.06-7 (2) Agronomia (2) Amazonian (2) Engenharia Agrícola (2) Fitotecnia (2) Germination (2) Solar radiation (2) 1.00.00.00-3 (1) 1.02.03.00-1 zero-inflated Beta distribution (1) 2 4-D (1) 5.01.00.00-9 Cucurbita pepo L. (1) 5.01.00.00-9 Lactuca sativa (1) 5.01.01.00-5 (1) Mais... Tipo do documento Info:eu-repo/semantics/article (18) Pesquisa (1) Pesquisa aplicada para pequeno produtor (1) Pesquisa controlada (1) Pesquisa de Campo (1) Pesquisa de campo (1) Pesquisa de campo e análise laboratorial (1) Pesquisa empírica de laboratório (1) Mais... Ano 2018 (3) 2017 (6) 2016 (1) 2015 (4) 2014 (4) 2013 (3) 2012 (4) 2011 (4) 2010 (5) Mais... País Brazil (34) Idioma Inglês (27) Português (7)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 34 Primeira ... 1 2 ... Última Genetic control of partial resistance to Asian soybean rust doi: 10.4025/actasciagron.v36i1.16919 1 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 Modeling the incidence of citrus canker in leaves of the sweet orange variety ‘Pera’ 1 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 Processamento de produto farináceo a partir de beterrabas submetidas à secagem estacionária - doi: 10.4025/actasciagron.v33i2.4885 1 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 Effects of climate change on irrigation adoption in Brazil 1 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 Modeling of the shrinkage kinetics of coffee berries during drying - doi: 10.4025/actasciagron.v33i3.7080 1 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 The effects of soil fumigation on the growth and mineral nutrition of weeds and crops - doi: 10.4025/actasciagron.v34i2.12971 1 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 Plant regeneration and histological study of the somatic embryogenesis of sugarcane (Saccharum spp.) cultivars RB855156 and RB72454 - doi: 10.4025/actasciagron.v36i1.16342 1 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 Efeito da temperatura e umidade do substrato na viabilidade de Sclerotium rolfsii - DOI: 10.4025/actasciagron.v32i2.2325 1 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°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°C. De todas as quatro temperaturas testadas, apenas a menor (40°C) não inativou os escleródios do patógeno. A 48°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 A system to map the risk of infection by Puccinia kuehnii in Brazil 1 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 Ação do enxofre em chuva ácida simulada sobre parâmetros morfofisiológicos de Phaseolus vulgaris L. (Fabaceae) - doi: 10.4025/actasciagron.v32i3.4273 1 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 Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity 1 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 Pochonia chlamydosporia promotes the growth of tomato and lettuce plants 1 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 Mathematical modeling of the drying process of corn ears - doi: 10.4025/actasciagron.v33i4.7079 1 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 Image analysis of coffee seeds submitted to the LERCAFE test 1 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 Water balance model and eucalyptus growth simulation in the rio doce basin, Brazil - doi: 10.4025/actasciagron.v35i4.16955 1 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 The influence of organic matter from swine wastewater on the interaction and transport of alachlor in soil - doi: 10.4025/actasciagron.v35i3.16374 1 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 Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding 1 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 1 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 1 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 Dinâmica de crescimento da abobrinha italiana em duas estações de cultivo - doi: 10.4025/actasciagron.v33i2.5952 1 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 Registros recuperados: 34 Primeira ... 1 2 ... Última

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