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Ciências Agrárias.

Moscati, Giorgio; Viana, José de Alencar Carneiro
Fonte: CNPq/Coordenação Editorial; Brasília Publicador: CNPq/Coordenação Editorial; Brasília
Tipo: Parte de Livro
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O planejamento de ciência e de tecnologia, que deverá se dar de forma contínua com a participação efetiva dos órgãos do Sistema Nacional de Ciência e Tecnologia (SNCT), terá como instrumentos principais, o III Plano Básico de Desenvolvimento Científico e Tecnológico (PBDCT), nascido do III Plano Nacional de Desenvolvimento (III PND), e a Ação Programada em Ciência e Tecnologia. Esta, atualizada anualmente, através do acompanhamento e avaliação do PBDCT, é o instrumento de ação direta. Os documentos de Avaliação & Perspectivas devem contribuir com subsídios para a adequada elaboração das Ações Programadas nas diversas subáreas de conhecimento (na presente A & P, em número de 66). Dessa forma, o trabalho deve fornecer informações específicas e/ou propor discussões de problemas como apoio a decisões ajustadas aos visados objetivos de desenvolvimento. O III PND concede prioridade à Agropecuária, o que torna ainda maior a responsabilidade e a relevância dos documentos de Ciências Agrárias. De acordo com o CNPq, consideram-se seis subáreas, em seguida relacionadas, com os respectivos redatores: Agronomia - professor Geraldo Martins Chaves, Universidade Federal de Viçosa (UFV); Alimentos - professor Cyro Gonçalves Teixeira...

Alterações fisiológicas e bioquímicas de duas variedades de cana-de-açúcar sob estresse hídrico; Physiological and biochemical alterations in two varieties of sugar cane subjected to water stress

Vilela, Romel Duarte
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
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This study aimed to characterize the physiological responses to drought of two sugarcane (Saccharum spp.) varieties in order to contribute information to study the physiological processes involved in plant adaptation to drought. To this end, an experiment was installed in a completely randomized design in a greenhouse at the Laboratory of Plant Physiology of the Center for Agrarian Sciences, Federal University of Alagoas, located in Rio Largo - AL (9° 28 S, 35° 49 W, with 127 m of altitude), and where the varieties RB855536 and RB867515 with contrasting responses to drought, were subjected to two, four, six and eight days of water stress and rehydration. The physiological and biochemical variables were analyzed, leaf water potential (w), solute potential (s), chlorophyll fluorescence (Fv/Fm and ФPSII), soluble sugars (glucose, fructose, sucrose) and starch and antioxidant enzymes, catalase (CAT), superoxide dismutase (SOD) and ascorbate peroxidase (APX). Water stress resulted in significant reduction in the w and s in two varieties studied, which did not support a drought of more than six days. After rehydration, the varieties studied, showed the ability to restore in the w and s. The RB867515 had greater reductions in the w and s in relation to RB855536. Both varieties studied presented chronic and dynamic photoinhibition gradually with the increase in time of drought stress and a strong reduction in the quantum potential efficiency (Fv/Fm) and effective (ΦPSII). The variety RB867515 showed higher capacity of recovery of the ΦPSII and rapair the effects of photoinhibition. The drought caused the decrease in the levels of sucrose and starch in two varieties...

Efeito da aplicação de silicato de cálcio e magnésio no desenvolvimento biológico de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho (Zea mays) (Poaceae); Effect of calcium and magnesium in biological development os Spodoptera frugiperda (JE Smith, 1797) (Lepidoptera: Noctuidae) on corn (Zea mays) (Poaceae)

Barbosa, Tiago Jorge de Araújo
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
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The study was conducted to evaluate the effect of different doses of silicon, applied to the soil, in biological development of Spodoptera frugiperda (J. E. Smith, 1979) (Lepdoptera: Noctuidae). It was developed in two phases, the first one in a greenhouse and Laboratory of Entomology and the second one in a field, both at the Centre of Agricultural Sciences of Universidade Federal de Alagoas, Rio Largo, AL. The design experiment was completely randomized in blocks at random, for the first and second stages, respectively. Five were used in both treatments, which were represented by different doses of silicon (without application; 500kg.ha-1 of SiO2; 1.000kg.ha-1 of SiO2; 1.500kg.ha-1 of SiO2 and 2.000kg.ha-1 of SiO2) applied to the soil with calcium silicate and magnesium 10.5% silicon, divided into two applications. The first step tests were performed to evaluate resistance (in greenhouse and in the laboratory), with fisrts instar caterpillars from the creation of maintenance, in the first 24hours after the outbreak. The second step was performed in a total area of 128,5m², divided into four blocks, where we evaluated the injuries caused by the plague in four different seasons (15, 30, 45 and 60 days after plants emergence), the infestation and productivity. To evaluate injury...

Avaliação de genótipos de batata-doce (Ipomoea batatas L. (Lam)) submetidos a diferentes tipos de fertilidade do solo no município de Rio Largo - Alagoas; Evaluation of sweet potato genotypes (Ipomoea batatas L. (Lam)) subject to different soil types fertility in the Rio Largo Alagoas

Santos Júnior, Ronaldo Bernardino dos
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
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This study aimed to evaluate genotypes of sweet potato under different types of soil fertility in two experiments that were conducted in the area of the Center of Agrarian Sciences, Federal University of Alagoas (ECSC / UFAL). The first conducted between June 2009 and October 2009 and the second between August 2010 and January 2011. Was used for both experiments, the randomized block design in 3 x 7 factorial with three replications. The experimental plots consisted of three plots of 6.0 m long with 0.30 m in height each, consisting of 15 plants per swath in the spacing of 0.80 mx 0.40 m, considering how useful area row core. These sweet potato genotypes were submitted to the following types of fertilization: 1 - No Application No Lime and Fertilizer Mineral 2 - With Application of Lime and Fertilizer Mineral No 3 - With Application of Mineral Fertilizer and Limestone. This work allowed the following conclusions: a) Clone 06 and witnesses Coquinho White and Sergipe had the highest amounts of commercial roots and yield of commercial roots per hectare in the experiment of 2010. b) There were influences of different types of soil fertility in genotypes of sweet potato for the variables RRNC, RTR and PPA in the experiment of 2010. c) Clone 06 witnesses and the Queen of Penedo and Sergipe had the highest amounts of commercial roots and yield of commercial roots per hectare in the experiment of 2011. d) There was influence of different types of soil fertility in genotypes of sweet potato for the variables DRC...

Avaliação do crescimento inicial da cana-de-açúcar, variedade RB867515, sob o efeito de bactérias endofíticas; Evaluation of sugarcane initial, RB867515 variety, growth unde effect of endophytic bacteria

Gonzaga, Giordano Bruno Medeiros
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
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This present research aimed to evaluate the effects of different endophytic bacteria species regarding the tolerance of sugarcane water stress in the initial growth phase. With that purpose, an experiment was installed, in the greenhouse at the Centro de Ciências Agrárias of Universidade Federal de Alagoas, located in the city of Rio Largo, in the state of Alagoas (9° 28 S, 35° 49 W, altitude 127 m), completely ramdomized on a factorial arrengement 4x2 (endophytic bacteria and levels of water stress in this order), with 8 replications. The levels of the first factor were composed of: non-inoculated plants; inoculated plants with complete inoculant (mix of Gluconacetobacter diazotrophicus, Burkholderia tropica, Herbaspirillum seropedicae, Herbaspirillum rubrisubalbicans e Azospirillum amazonense); inoculated plants with G. diazotrophicus; inoculated plants with B. tropica. The levels of the second factor were: plants kept on the soil with moisture next to field capacity (without stress); plants under water deficit due to irrigation suspension. The morphological and physiological variables analyzed were plant height, stalk diameter, number of green leaves, leaf area, dry mass analyze, leaf water potential (ψwf), potential and effective quantic efficiency and chlorophyll content. The bacteria application didn t interfer in stalk diameter...

Desempenho de genótipos alagoanos de milho (Zea mays L.) em diferentes densidades de semeaduras; Performance of corn alagoanos genotipes in different plant densities

Silva, José Pedro da
Fonte: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL Publicador: Universidade Federal de Alagoas; BR; Agronomia; Produção vegetal; Proteção de plantas; Programa de Pós-Graduação em Agronomia; UFAL
Tipo: Dissertação Formato: application/pdf
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The study was conducted in 2011, at the Experimental Sector Plant Breeding of the Centro de Ciências Agrárias, Universidade Federal de Alagoas (SMGP-CECA-UFAL), in order to evaluate the performance of corn Alagoanos genotypes in different plant densities. There were evaluated four corn genotypes, which three was developed by SMGP-CECA-UFAL (VIÇOSENSE, BRANCA and RIO LARGO) and another developed by EMBRAPA (BRS 106), in three seeding rates: 50.000, 62.500 and 83.333 plants.ha-1. It was used a randomized complete block design with three replications. The experimental plots consisted of five rows 5,0m long, and useful area comprised of the three central rows. The variables evaluated were: diameter culm (DC), Height of Entering First Spike (AIPE), plant height (PH), Percentage of prolificacy (PROL), percentage of lodged plants (PPA), Spike Length (EC), stem diameter (DE), Number of rows of grains (NFG), Weight of a hundred grains (PCG), Yield Spikes with Straw (REP) and Grain Yield (GY). There was no significant difference between genotypes for the following variables: DC, PPA, EC, ED, PCG, REP and RG. On the other hand, significant differences between genotypes for the following variables: AIPE, AP, PROL and NFG. The genotypes developed by SMGP-CECA-UFAL: VIÇOSENSE...

Avaliação dos efeitos de águas residuárias de suínos sobre a produção de fitomassa de pastagem do gênero Cynodon e nos atributos biológicos do solo; Assessment of the effects of watewater from production of pigs on pastre phytomass and biological atributes of soil

RIBEIRO, Neuci Bittencourt Pereira
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia - Regional Jataí; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia - Regional Jataí; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
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The fertirrigation and irrigation used in fodder can contribute to the production of dry material and use of organic residue (such as wastewater of hog raising) may contribute for improvement of soil biological attributes. The experiment was developed at the Centro de Ciências Agrárias e Biológicas do Campus de Jataí, da Universidade Federal de Goiás, located in the city of Jataí, from november/06 to june/07, in an experimental area of soil Latossolo Vermelho Distroférrico. The design was made in blockes randomly devided into plots with five treatments and four repetitions. They consisted of chemical fertilization without irrigation, fertilization with organic waste from pigs in one application and irrigation, chemical fertilizer and irrigation, organic wast fertirrigatin from pigs and irrigation, and chemical fertirrigation and irrigation. Three variets of Cynodon have been used: Coast cross, Tifton 86 and Florakirk. The treatments were irrigated and fertirrigated with microsplinker. The objective was to evaluate the effects of fertirrigation and irrigation associated with the use of wastwwater in grasses of Cynodon genre, by changes in the biological attributes of soil and the production of dry material. Soil correction was made in the experiment...

Características agronômicas, químicas e bromatológicas de variedades de cana-de-áçucar para uso forrageiro; Agronomic and chemical-homatologic traits of sugarcane varities to use as forage

KLEIN, Vania
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia - Regional Jataí; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia - Regional Jataí; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
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Six sugarcane varieties were evaluated for their agronomic, chemical and bromatologic characteristics, aiming to determine the most advisable to use as cattle feed. The varieties tested were: RB72454, RB835486, SP80-1816, SP79-1011, RB855536 and RB835054. Fresh matter (FM) and dry matter (DM) yield, viable and no-viable stalks per meter (VS and NVS/m), total of stalk internodes (SI), percentage of uncovered internodes (PUD), stalk length (SL), diameter (SD) and density (SDE) of stalk, plant stalk percentage (SP), Brix, Pol, reducing sugars(RS) and total reducing sugars (TRS), crude protein (CP), mineral matter (MM), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were analyzed. The experiment was conducted in randomized block design with six treatments and five replications. The cut occurred 17 months after planting. RB835054 variety had higher yield (P<0.05), reaching 115.54 and 33.01 t ha-1 of FM and DM, respectively. FM and DM yields were highly correlated with VS/m. NDF and ADF contents of SP79-1011 variety were the lower levels, 44.32% and 24.63, respectively and did not differ for RB835054 NDF (P>0.05). RB835054 and SP-791011 varieties showed greater viability for use in animal nutrition.; Seis variedades de cana-de-açúcar foram analisadas quanto aos seus caracteres agronômicos...

Indicadores de sustentabilidade em sistemas de rotação e sucessão de culturas com algodoeiro em plantio direto; Sustainability indicators in crop rotation and succession systems with cotton crop in no-tillage planting

MENEZES, Luiz Antonio Silva
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
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The objective of this wok was to monitor sustainability indicators of soil involving the cotton plant in different crop rotation and succession systems, as well as to evaluate cover crop species which best adapt and that have longer longevity of decomposition as well as their effects on the physical and chemical properties and characteristics of soil. The field trials were developed in two sites. One experiment was conducted on the experimental Farm of Campus II of the UFG, in the town of Goiânia-GO and the other in the experimental area of the Fundação GO, in the town of Santa Helena de Goiás- GO. Both plant mass yield and decomposition longevity were evaluated in Goiânia by the litterbag process as well as also the physical and chemical characteristics of soil and cotton seed yield kg ha-1 and grain soybean kg ha-1, upon the effect of different cover crop species. The single covers which provided increased dry plant mass yields were grain sorghum followed by feather-grass, Crotalária + Millet and Brachiaria and in longevity, the decomposition of the plant mass was maximum in the first 22 days standing out the mixture Mucuna + grain sorghum which showed highest residual plant mass yield. Most of the treatments involving the cover plant species in Goiânia presented the values of resistance to penetration (RP) within the ranges considered from high to low. Crotalária (Crotalária juncea) presented in Goiânia the lowest RP in solo...

Impactos da aplicação de vinhaça sobre as propriedades químicas do solo e de seu efluente; Impacts of vinasse application on soil and effluent chemical properties

SILVA, Mellissa Ananias Soler da
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
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The objective of this study was to evaluate the impacts of vinasse on soil columns effluents besides quantify ionic species in soil layers as affected by vinasse application, and its downward movement along time. Soil samples were collected at two different areas: the first one is a sugarcane field cropped during 21 years; the second one, an untouched savannah area. Soil samples were brought to Greenhouse of Escola de Agronomia e Engenharia de Alimentos (EA/UFG) and were built two experiments: 1º) These samples were inserted into PVC columns with 120 cm height x 25 cm diameter, inner coated with raffia bags, and cropped with sugarcane. Vinasse treatments were applied on soil columns at rates equivalent to 0, 300, 600 e 1200 m3 ha-1. Effluents were sampled at four times (0, 60, 90 and 120 days) after vinasse application, followed by chemical determination of organic carbon (CO), Cl-, Ca2+, Mg2+, Na+, K+, NH4 +, NO3 -, SO4 2- and, pH; 2º) These samples were put into PVC columns with 120 cm height x 10 cm diameter, inner coated with two waterproof ink layers mixed with sand, partially cut into 0-10, 10- 20, 20-40, 40-60, 60-80, 80-120 cm layers. Vinasse treatments were applied with no additional water on soil columns at rates equivalent to 0...

Caracterização biológica e fisiológica de populações de Sclerotinia sclerotiorum e avaliação da resistência genética em cultivares de soja; Biological and physiological characterization of Sclerotinia sclerotiorum populations and evaluation of genetic resistance in soybean cultivars

GARCIA, Riccely ávila
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
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The soybean (Glycine max L. Merril) is the main cultivated species on the country, having an average productivity of 3,106 kg.ha-1 in an area of 24.2 million hectares, giving to Brazil the second place in world production. Among the factors that limit the yield, the profitability and the successful production of this legume, diseases are a highlight. Among them, the white mold, caused by Sclerotinia sclerotiorum (Lib.) of Bary, is gaining importance in the soybean fields on the Brazilian Cerrado . The control of this disease is being considered difficult due to the absence of resistant cultivars, fungus survival in soil during long periods, range of hosts, large number of ascospores produced by apothecium and their fast dissemination on relatively long distances from the source and survival in seeds on mycelial dormant form or sclerotia, contaminating the batches. This work had the aim to study the genetic variability of S. sclerotiorum populations; evaluate the aggressiveness of isolates in soybean culture; evaluate the sensitivity of isolates to fungicides, temperatures and light regime; select an inoculation method of S. sclerotiorum in soybean plants, efficient and practical and; characterize soybean cultivars for reaction to S. sclerotiorum. The experiments were conducted on the Escola de Agronomia e Engenharia de Alimentos da Universidade Federal de Goiás . The collection of isolates was obtained by collecting sclerotia in soybean plants in eight municipalities of the Brazilian Central Region...

Caracterização morfológica, fisiológica, isoenzimática e controle de isolados de Corynespora cassiicola (Berky & Curt) Wei, agente causal da mancha alvo; Morphologic, physiologic, isozymic characterization of Corynespora cassiicola (Berky & Curt) Wei, causal agent of target spot, and its control

TERAMOTO, Adriana
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
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Corynespora cassiicola is the causal agent of target spot of several crops of economical importance such as soybean, cotton, tomato, cucumber etc. Sixteen isolates of this fungus from several hosts and different regions in Brazil were obtained and conducted morphologic, physiologic, isozymic characterization as well as control, in laboratory and in greenhouse of the Center of Research in Phytopathology of Escola de Agronomia e Engenharia de Alimentos, da Universidade Federal de Goiás , located in Goiânia, State of Goiás. The main objectives of this investigation were to characterize: a) morphology: by determination of dimensions and number of pseudosepta in one hundred spores of each isolate; b) physiology: by evaluating mycelial growth under different temperatures (15oC, 20oC, 25oC, 30oC and 35oC) and photoperiods (0, 12 and 24 hours); sporulation in different photoperiods; hours of continuous humidity to improve spores germination; the pathogenicity of several isolates of C. cassiicola by inoculation on several hosts (cucumber, soybean, cotton, coffee, Barbados cherry, tomato and melon) and the preservation of 10 isolates using three methods: Castellani, mineral oil and periodic transfer; c) isozyme analysis: with polyacrylamide gel eletrophoresis of esterase of 14 isolates; and d) control: by reactions of nine cucumber hybrids to C. cassiicola; and the sensibility of six isolates of C. cassiicola to eight fungicides in vitro (captan...

Variabilidade de plantas e progênies de populações naturais de Hancornia speciosa Gomes do Cerrado; Plants and progenies variability of Hancornia speciosa natural populations from Brazilian Cerrado

GANGA, Rita Maria Devós
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Tese de Doutorado Formato: application/pdf
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The mangaba tree (Hancornia speciosa Gomes) is a fruit tree native from Brazil with potential for domestication, due to its excellent smell, flavor and texture. However, genetic conservation and breeding programs of these species are in an initial developmental phase. This way, this research aimed to characterize trees and fruits of natural populations of H. speciosa, as well as evaluate the distribution of phenotypic variability among them; evaluate progenies of mangaba trees that compose the Escola de Agronomia e Engenharia de Alimentos of Universidade Federal de Goiás (EA/UFG) germplasm collection and estimate genetic parameters for the initial development of plants in the field. Mangaba trees populations have been sampled in different locations of the Brazilian Cerrado, including the states of Goiás, Tocantins, Mato Grosso, Mato Grosso do Sul, and Bahia, totaling 109 mother plants of 35 populations of the botanic varieties pubescens, gardneri, speciosa and cuyabensis. In relation to the trees, plant height, stem perimeter, and number of fruits per plant were taken. From a sample of five fruits per plant, individual measures have been taken, such as: length, diameter, weight, total weight of seeds, average seed weight, pulp plus peel weight...

Avaliação das características físico-químicas e alterações do leite UHT (UAT) produzido no Estado de Goiás ao longo da estocagem; Avaliação das características físico-químicas e alterações do leite UHT (UAT) produzido no Estado de Goiás ao longo da estocagem

COSTA, Andréia Di Martins Carmo
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
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With the objective of evaluating the physical/chemical, microbiological characteristics and the changes that occur in UHT milk (UAT) processed in the State of Goias during its storage for 135 days, a study was done between August and December 2008 with all the companies that produced UHT milk (UAT) processed in the State. Samples were collected from refrigerated raw milk stored in milk storage silos of industry for analysis of their physical/chemical and microbiological characteristics. From each company, twelve one liter cartons of milk were collected for analysis of their physical/chemical and microbiological properties as well as nitrogen compounds and the amount of fat separation from the milk and sedimentation within each sample. The samples were sent to the laboratories of Microbiology and Dairy of the School of Agronomy and Food Engineering at the Federal University of Goias (UFG). The physico-chemical properties of raw milk were in accordance with the parameters established by legislation, except for three brands of milk, with values of freezing point, nonfat milk solids and total solids. The Alizarol test results were normal for UHT milk (UHT) of all brands, except the milk of the mark "E", which has had worst results established by legislation. All milk samples were within the standards for titratable acidity and pH. The density indices were normal...

Segurança microbiológica dos resíduos sólidos de fecularia e aplicação em bolos para a alimentação humana; Microbiological safety of solid waste and starch application in cakes for human consumption

SOUZA, Thaísa Anders Carvalho
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Ciência e Tecnologia de Alimentos; Ciencias Agrárias - Agronomia
Tipo: Dissertação Formato: application/pdf
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This study aimed to verify the microbiological safety of solid waste from cassava starch (peel and bagasse), with different times of storage at room temperature with and without chemical treatment and apply peels and dried cassava bagasse in the formulation of gluten-free cake mixes substituting rice flour. The pH values ranged from 5.3 to 4.3 in fresh cassava peel, while the cassava peel sanitized between 5.6 and 4.4. The pH values ranged from 5.24 to 5.92 on fresh cassava bagasse, while in the acidified cassava bagasse these values were between 4.7 and 5.5. The time significantly influenced the pH values of all samples of peel and cassava bagasse during storage at room temperature. None of the samples of flour and cake analyzed was detected Salmonella, and counting of Bacillus cereus, Clostridium sp. and fecal coliform (45 °C). There were only counts of coliforms, yeasts and molds in peel flour and cassava bagasse flour. All instrumental parameters of color, pH and moisture of the samples of rice flour, peel flour and cassava bagasse flour, showed differences. The rice flour had become clearer, with less red and yellow color when compared to the peel flour and cassava bagasse flour. The pH differed among the three flours, being the pH of the rice flour larger than those observed in flours of peel and cassava bagasse. The moisture content of rice flour was lower than the peel flour and cassava bagasse flour. The flours of peel and cassava bagasse showed higher contents of ash...

Nutrição do tomateiro e a sua influência na preferência para abrigo, alimentação e oviposição de Bemisia tabaci (GENN.) biótipo B; Nutrition of the tomato and her influence in the preference for shelter, feeding and oviposition of Bemisia tabaci (Genn.) biotype B

OLIVEIRA, Marcos Fernandes
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
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Bemisia tabaci biotype B presently constitutes a great threat not only for the tomato crop but to several other cultures. The objective of this research was to evaluate the influence of the nutrition of tomato in the resistance induction for shelter, feeding and oviposition of B. tabaci biotype B. The experiments were driven in Escola de Agronomia e Engenharia de Alimentos (EA/UFG), Goiânia, Goiás, Brasil. Three experiments were accomplished outdoors in temperature conditions, humidity and natural photoperiod. In the first different sources of nitrogen were tested, in the second different ratios nitrogen/potassium and in the third party different associations between corrected soil and earthworm manure. Each experiment was subdivided in: with choice chance and without chance of choice of the insect, the first one was carried out on randomized blocks design and the second one completely randomized design. Each treatment had four replications, with one plant per pot. In the first experiment the treatments used were: corrected soil (without addition of fertilizers); potassium saltpeter; urea; phosphate monoamonic; nitrate of calcium; sulfate of ammonium; chicken manure; bone flour; castor oil plant pie; composed organic; and earthworm manure. In the second experiment the ratios were compared N/K: 1/1; 2/1; 4/1; 8/1; 1/2; 1/4; and 1/8. In the third experiment the associations corrected soil were compared + earthworm manure: 100% + 0%; 80% + 20%; 60% + 40%; 40% + 60%; 20% + 80%; 0% + 100%. Five evaluations on the observation of the behavior of B. tabaci biotype B in relation to the feeding preference and shelter were accomplished: 3...

Eficiência agronômica de um fertilizante fonte de micronutrientes nas culturas da soja e milho; Eficiência agronômica de um fertilizante fonte de micronutrientes nas culturas da soja e milho; Agronomic efficiency of fertilizer fount of micronutrients in soy and corn cultures; Agronomic efficiency of fertilizer fount of micronutrients in soy and corn cultures

BARBOSA, Juliano Magalhães
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
86.15%
The present work aimed to value the agronomic efficiency of different doses of a fertilizer fount of micronutrients applied through the soil in soy culture and the residual answer in culture rotation with the corn, by the determination of chemical attributes related with the productivity. The study was performed in field s condition in a Distrofic Red Latosoil in the experimental area of the School of Agronomy and Food Engineering, in Goiânia Goiás. The experiment was performed in the harvests 2007/2008 and 2008/2009 in randomized complete blocks design with five treatments and four repetitions. Fertilizer was used as fountain of micronutrients in the form of powder containing 6,8% of manganese (Mn), 3,9% of zinc (Zn), 2,1% of iron (Fe), 1,2% of copper (Cu) and 1,1% of boron (B), in four doses and as reference the testimony: D 0 0 kg ha-1, D 0,5 33,33 kg ha-1, D 1 66,66 kg ha-1, D 2 133,32 kg ha-1 and D 1C - 66,66 kg ha-1 plus 1,4 t ha-1 of calcium oxide. The fount of micronutrient was applied only in the harvest 2007/2008 associated to the soil preparation, in the harvest of 2008/2009 there was no reapplication and the system of planting was direct, without the soil preparation. The geeting of soil and leaf were carried out in the florescence of the cultures. It can be concluded that the cultures appears to be responsive to the fertilizer by considering the productivity of both the soy and the corn and that the fertilizer doses of 128...

Caracterização de frutos e de mudas de mangabeira(Hancornia speciosa Gomes) de Goiás; Characterization of fruit and seedlings Mangabeira (Hancornia speciosa) of Goiás

VIEIRA, Muza do Carmo
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
86.15%
Mangabeira (Hancornia speciosa) is a fruit tree, native to Brazil and found in various regions of the country, from the Coastal Plains and Southeast. We conducted this study in order to characterize fruits and seedlings in nursery and field mangabeira of different plants and natural areas of occurrence in the Cerrado of the State of Goiás ten areas were selected and each were chosen randomly plants were in full production. These plants were collected up to 12 fruits. Separating samples of five ripe fruit per plant are evaluated the following characteristics: weight, transversal and longitudinal directions, the total number of seeds and the total mass of seeds. Each pulped fruit and seeds washed and dried, separated samples per plant and a subsample of these two seeds were sown in separate tubes and for evaluation of emergency (%) and emergence speed index (ESI) (%). In the nursery, seedlings originated from seeds that were evaluated: length (cm) and number of air p sheets (NPF). Data were collected monthly for each offspring to the tenth evaluation. Ultimately, they separate, and these six plants, three samples per array seedlings were planted in the field at the School of Agronomy and Food Engineering - UFG and three in the Federal Institute Campus Urutaí Goiás-GO and underwent monthly assessments leading into account the diameter (mm) length (cm) and number of pair of sheets. Among matrices test was performed for average...

Eficiência agronômica de fosfatados reativos sob diferentes formas de manejo da adubação; Agronomic efficiency of fertilizer under different reactive forms of fertilizer management

SILVA, Marciana Cristina da
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
86.11%
Com o objetivo de avaliar a eficiência relativa de fertilizantes fosfatados reativos sob diferentes manejos da adubação, em três cultivos sucessivos da soja, conduziu-se um experimento na Escola de Agronomia e Engenharia de Alimentos da Universidade Federal de Goiás, em um Latossolo Vermelho Distroférrico com teores baixos de fósforos. Empregou-se um delineamento em blocos ao acaso, em arranjo fatorial 3 x 4 + 1 (fontes x modos + testemunha) subdividido no tempo (três cultivos sucessivos). As fontes de fósforo foram o superfosfato triplo, fosfato natural reativo de Arad e fosfato natural reativo de Youssoufia. Os manejos de adubação foram M1 -270 kg ha-1 de P2O5 a lanço, uma única aplicação (1º ano); M2 -270 kg.ha-1 de P2O5 a lanço, dividido em três aplicações de 90 kg; M3 - 270 kg.ha-1 de P2O5, dividido em três aplicações anuais de 90 kg.ha-1, sendo 45 kg.ha-1 de P2O5 a lanço +45 kg.ha-1 de P2O5 no sulco e M4 -270.kg.ha-1 de P2O5 no sulco, dividido em três aplicações de 90 kg. Estimou-se a produtividade da cultura, os teores de P nas folhas de soja e os teores de P no solo extraído pelo extrator Mehlich 1 e resina e a eficiência relativa para uma destas variáveis. As principais conclusões obtidas foram que a eficiência relativa dos fosfatos reativos obtidos dependeu da variável empregada. A aplicação do Fosfato natural reativo de Youssoufia parcelada em três anos no sulco de plantio proporcionou maior incremento na produtividade e nos teores de P no solo ao longo dos três anos de cultivo.

Efeitos do inseticida thiamethoxam no desenvolvimento, na produtividade da cana-de-açúcar e no controle de Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae); Effect of thiamethoxam insecticide in development, yield of sugarcane and control of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae)

PEREIRA, Jaqueline Magalhães
Fonte: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Mestrado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
86.14%
The objective of the present work was to determine the physiologic effects of thiamethoxam in sugarcane crop. This study was conducted at Escola de Agronomia e Engenharia de Alimentos of Universidade Federal de Goiás , in Goiânia, and at commercial areas and seedlings of nursery of Usina Jalles Machado S/A , in Goianésia, Goiás State, Brazil, in period from December of 2006 to November of 2007. Three experiments were conducted, being one without and two with the presence of root froghopper Mahanarva fimbriolata. In these experiments, thiamethoxam was used in the doses 0 g of active ingredient (i.a.).ha-1, 100 g i.a.ha-1, 150 g i.a.ha-1e 200 g i.a.ha-1, with application accomplished in December end, being evaluated the number of nymphs of January to May, and in the crop, the yield and technological parameters. To evaluate the thiamethoxam effect in the initial development of the plants two experiments they were led: one in acrylic boxes (3,5 x 11 x 11 cm) with substrate and other in tubes of PVC (0,20 x 1,20 m) with soil. In the first the variety was used RB867515, with the same doses of the field experiments, being evaluated development of the above-ground part and roots, third days after the application of the insecticide. In tubes...