scholarly journals EFEITOS DA APLICAÇÃO DE VINHAÇA NA FERTILIDADE DO SOLO

Irriga ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 439-459
Author(s):  
Rubens Fernando Serafim ◽  
Lauren Nozomi Marques Yabuki ◽  
João Gabriel Thomaz Queluz ◽  
Larissa Ruas Galdeano ◽  
Marcelo Loureiro Garcia
Keyword(s):  
Soil Fertility ◽  
Chemical Properties ◽  
Sao Paulo ◽  
São Paulo ◽  
Monitoring And Control ◽  
Aluminum Saturation ◽  
The Mean ◽  
And Control ◽  
E Mail ◽  
Soil Metal

EFEITOS DA APLICAÇÃO DE VINHAÇA NA FERTILIDADE DO SOLO     RUBENS FERNANDO SERAFIM1; LAUREN NOZOMI MARQUES YABUKI1; JOÃO GABRIEL THOMAZ QUELUZ1; LARISSA RUAS GALDEANO1; MARCELO LOUREIRO GARCIA1   Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, Avenida 24 A,1515, Bela Vista, CEP: 13506-900, Rio Claro, SP, Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected] [email protected]     1 RESUMO   O objetivo deste trabalho foi analisar os efeitos da aplicação de vinhaça sobre as características de fertilidade do solo. Um estudo de monitoramento desses parâmetros foi realizado em uma fazenda localizada no interior do estado de São Paulo, no período de 2012 a 2017. Informações mineralógicas e sobre a concentração de metais no solo foram reportadas. Alterações significativas nas propriedades químicas do solo ao longo do tempo foram observadas, sendo a aplicação da vinhaça um dos fatores que exerceram influência na variação das características do solo, em combinação com fatores ambientais e o manejo agrícola. A saturação por bases decresceu em média de 64 para 40% entre 2012 e 2017, respectivamente, enquanto o volume médio anual de vinhaça foi 188 ± 31 m3 ha-1. A tendência de crescimento ao longo dos anos do parâmetro saturação por alumínio foi evidente e os valores de pH foram em torno de 5. Apesar da adoção de aplicação da vinhaça nos solos proporcionar a disponibilidade de nutrientes e água, é recomendado que o monitoramento e controle da qualidade do solo seja sempre realizado, mantendo-se consequentemente, a sua fertilidade e a sustentabilidade da produção de cana-de-açúcar.   Palavras-chave: fertirrigação, dosagens de efluente, características químicas do solo, impactos ambientais.     SERAFIM, R. F.; YABUKI, L. N. M.; QUELUZ, J. G. T.; GALDEANO, L. R.; GARCIA, M. L. EFFECTS OF VINASSE APLICATION ON SOIL FERTILITY   2 ABSTRACT   This study aimed to evaluate the effects of vinasse application on soil fertility characteristics. A monitoring study of soil fertility parameters was conducted in a farm fertirrigated with vinasse, located in the state of São Paulo, over the period from 2012 to 2017. Mineralogical and soil metal concentration information was reported. Significant alterations in the chemical properties of the soil over time were observed, being the vinasse application one of the factors that influenced the variation of the soil characteristics, combined with environmental factors and agricultural management. The base saturation decreased on average from 64 to 40% between 2012 and 2017, respectively, while the mean annual volume of vinasse was 188 ± 31 m3 ha-1. The increasing trend in the years for the parameter aluminum saturation was remarkable and the pH values were around 5. Although the adoption of vinasse application in soils provides the availability of nutrients and water, it is recommended that the monitoring and control of soil quality be performed at all times maintaining, consequently, its fertility and the sustainability of sugarcane production.   Keywords: fertigation, effluent dosage, soil´s chemical characteristics, environmental impacts.  

RELAÇÃO VAZÃO x PRESSÃO EM MICROASPERSORES DAN 2001 SOB CONDIÇÃO ADVERSA DE OPERAÇÃO

Irriga ◽  
2003 ◽  
Vol 8 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Marco Antonio Fonseca Conceição ◽  
Rubens Duarte Coelho
Keyword(s):  
Hydraulic Performance ◽  
Sao Paulo ◽  
The Self ◽  
São Paulo ◽  
Flow Curves ◽  
Pressure Flow ◽  
Adverse Condition ◽  
Irrigation Time ◽  
E Mail ◽  
Stable Flow

RELAÇÃO VAZÃO x PRESSÃO EM MICROASPERSORES DAN 2001 SOB CONDIÇÃO ADVERSA DE OPERAÇÃO  Marco Antônio Fonseca ConceiçãoEmbrapa Uva e Vinho, Estação Experimental de Jales, Jales, SP. CP 241. CEP 15700-000.E-mail: [email protected] Duarte CoelhoDepartamento de Engenharia Rural, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, SP. CP 09, CEP 13418-900.E-mail: [email protected]  1 RESUMO  Alguns microaspersores possuem membranas que regulam a sua pressão de operação, mantendo a vazão praticamente estável dentro de uma faixa de pressão na rede hidráulica. Operadores de irrigação no campo, muitas vezes com baixo nível de instrução e sem orientação profissional qualificada, visando reduzir problemas de entupimento ou para diminuir o tempo de irrigação, costumam retirar as membranas autocompensantes para aumentar a vazão do emissores, o que pode comprometer o desempenho hidráulico do sistema. Para avaliar o efeito da retirada da membrana  sobre as vazões dos microaspersores, no presente trabalho determinou-se as relações entre pressão e vazão para sete bocais do microaspersor DAN 2001, operando na ausência da membrana autocompensante. As curvas pressão-vazão sem as membranas autocompensantes apresentaram comportamento potencial com expoentes variando entre 0,58 e 0,64. As vazões dos microaspersores sem as membranas aumentaram de forma inversamente proporcional aos diâmetros dos emissores, quando comparadas às vazões nominais com as membranas.  UNITERMOS: Hidráulica, irrigação, microaspersão.  CONCEIÇÃO, M.A.F.; COELHO, R.D. FLOW X PRESSURE RELATIONSHIP FOR DAN 2001 MICROSPRINKLERS UNDER ADVERSE CONDITION  2 ABSTRACT  Many types of microsprinklers have a self-compensating membrane to regulate their pressure, keeping a stable flow. Many producers usually take the membranes off to reduce clogging problems  or irrigation time. This procedure could endanger the system hydraulic performance. To evaluate the effect of taking off the self-compensating membrane from microsprinklers it was determined, in the present work, the pressure-flow relationship for seven Dan 2001 microsprinkler nozzles operating without the membrane. The pressure-flow curves presented a potential behavior with the exponents varying from 0.58 to 0.64. Microsprinkler flows without the membranes increased inversely proportional to the emitter diameters, comparing to the nominal flows using the membranes.  KEYWORDS: Hydraulic, irrigation, microsprinkler.

Entrevista com Celso Luiz Caldeira

2021 ◽  
Vol 11 (3) ◽  
pp. 10-13
Author(s):  
Murilo Priori Alcalde ◽  
Celso Luiz Caldeira
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
E Mail

Professor Titular de Endodontia, Faculdade de Odontologia, Universidade de São Paulo (São Paulo/SP, Brasil). Doutor em Odontologia, área de concentração em Endodontia, Universidade de São Paulo (São Paulo/SP, Brasil). E-mail para contato: [email protected]

scholarly journals Gastrointestinal nematode infections in sheep raised in Botucatu, state of São Paulo, Brazil

2014 ◽  
Vol 23 (3) ◽  
pp. 348-354 ◽  
Author(s):  
Maurício Orlando Wilmsen ◽  
Bruna Fernanda Silva ◽  
César Cristiano Bassetto ◽  
Alessandro Francisco Talamini do Amarante
Keyword(s):  
Haemonchus Contortus ◽  
Natural Infection ◽  
Gastrointestinal Nematode ◽  
Gastrointestinal Nematodes ◽  
Sao Paulo ◽  
São Paulo ◽  
Mean Intensity ◽  
Oesophagostomum Columbianum ◽  
The Mean ◽  
In Parenthesis

Gastrointestinal nematode infections were evaluated in sheep raised in Botucatu, state of São Paulo, Brazil between April 2008 and March 2011. Every month, two tracer lambs grazing with a flock of sheep were exposed to natural infection with gastrointestinal nematodes for 28 consecutive days. At the end of this period, the lambs were sacrificed for worm counts. Haemonchus contortus presented 100% of prevalence. The seasons exerted no significant influence on the mean intensity of H. contortus, which ranged from 315 worms in November 2010 to 2,5205 worms in January 2011. The prevalence of Trichostrongylus colubriformis was also 100%, with the lowest mean intensity (15 worms) recorded in February 2011 and the highest (9,760 worms) in October 2009. In the case of T. colubriformis, a significant correlation coefficient was found between worm counts vs. rainfall (r = −0.32; P <0.05). Three other nematodes species were found in tracer lambs, albeit in small numbers. Their prevalence and mean intensity (in parenthesis) were as follows: Oesophagostomum columbianum 28% (25.2), Cooperia curticei 7% (4.5) and Trichuris spp. 2% (1). In conclusion, the environmental conditions of the area proved to be highly favorable for the year-round transmission of H. contortus and T. colubriformis.

scholarly journals Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Sonia Assami Doi ◽  
Aline Bartelochi Pinto ◽  
Maria Carolina Canali ◽  
Daiane Raquel Polezel ◽  
Roberta Alves Merguizo Chinellato ◽  
...  
Keyword(s):  
Filamentous Fungi ◽  
Chemical Properties ◽  
Morphological Characteristics ◽  
Sao Paulo ◽  
Northern Coast ◽  
São Paulo ◽  
Mangrove Swamp ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Pharmaceutical Industries

Abstract Araçá Bay, located in the city of São Sebastião, São Paulo, Brazil, is a protected area of substantial complexity. It represents the last remaining mangrove swamp preserve between the cities of Bertioga and Ubatuba on the northern coast of São Paulo State. This mangrove swamp has specific physical and chemical properties, and it shelters a wide variety of life, including fungi. These microorganisms are present in a variety of species with different morphophysiological features, and they have the ability to produce enzymes of biotechnological importance. The goal of this study was to quantify, isolate, and identify filamentous fungi in water and sediment samples from the Araçá Bay mangrove swamp in São Sebastião. Two samplings were performed in the summer and two were performed in the winter. The samples were collected from intertidal zones, and dissolved oxygen (DO), temperature, salinity, and pH were measured in situ. The spread plate technique was used to inoculate the samples collected on plates with a potato dextrose agar (PDA) medium. A total of 208 colonies (68 from water samples and 140 from sediment samples) were isolated, and they were identified based on their morphological characteristics. Filamentous fungus density was higher in the sediment than in the water, and the samplings performed in the winter revealed a higher density than those performed in the summer. Though some of the environmental parameters were not ideal for fungal development, a high quantity of growth was nevertheless observed. When the isolated colonies were analyzed, the greatest diversity and species richness were found in the summer samples. The genera identified in all of the samples were Aspergillus, Penicillium, Cladosporium, and Fusarium. The pathogenic species found from these genera were Aspergillus fumigatus, A. terreus, Penicillium citrinum, and P. chrysogenum. These species are also able to produce enzymes that offer a variety of applications. The fungal community described herein represents the diversity found in this mangrove swamp during the period studied. Many of the fungus species found are pathogenic and may be useful due to their ability to produce specific enzymes applicable in the biotechnological and pharmaceutical industries.

scholarly journals Magnetic susceptibility to identify landscape segments on a detailed scale in the region of Jaboticabal, São Paulo, Brazil

2012 ◽  
Vol 36 (4) ◽  
pp. 1073-1082 ◽  
Author(s):  
Mariana dos Reis Barrios ◽  
José Marques Junior ◽  
Alan Rodrigo Panosso ◽  
Diego Silva Siqueira ◽  
Newton La Scala Junior
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Magnetic Susceptibility ◽  
Clay Fraction ◽  
Chemical Properties ◽  
Principal Component ◽  
Component Analysis ◽  
Sao Paulo ◽  
São Paulo ◽  
Agricultural Potential

The agricultural potential is generally assessed and managed based on a one-dimensional vision of the soil profile, however, the increased appreciation of sustainable production has stimulated studies on faster and more accurate evaluation techniques and methods of the agricultural potential on detailed scales. The objective of this study was to investigate the possibility of using soil magnetic susceptibility for the identification of landscape segments on a detailed scale in the region of Jaboticabal, São Paulo State. The studied area has two slope curvatures: linear and concave, subdivided into three landscape segments: upper slope (US, concave), middle slope (MS, linear) and lower slope (LS, linear). In each of these segments, 20 points were randomly sampled from a database with 207 samples forming a regular grid installed in each landscape segment. The soil physical and chemical properties, CO2 emissions (FCO2) and magnetic susceptibility (MS) of the samples were evaluated represented by: magnetic susceptibility of air-dried fine earth (MS ADFE), magnetic susceptibility of the total sand fraction (MS TS) and magnetic susceptibility of the clay fraction (MS Cl) in the 0.00 - 0.15 m layer. The principal component analysis showed that MS is an important property that can be used to identify landscape segments, because the correlation of this property within the first principal component was high. The hierarchical cluster analysis method identified two groups based on the variables selected by principal component analysis; of the six selected variables, three were related to magnetic susceptibility. The landscape segments were differentiated similarly by the principal component analysis and by the cluster analysis using only the properties with higher discriminatory power. The cluster analysis of MS ADFE, MS TS and MS Cl allowed the formation of three groups that agree with the segment division established in the field. The grouping by cluster analysis indicated MS as a tool that could facilitate the identification of landscape segments and enable the mapping of more homogeneous areas at similar locations.

scholarly journals Factors associated with the prevalence of hypertension and control practices among elderly residents of São Paulo city, Brazil

2013 ◽  
Vol 29 (11) ◽  
pp. 2275-2286 ◽  
Author(s):  
Telma de Almeida Busch Mendes ◽  
Moisés Goldbaum ◽  
Neuber José Segri ◽  
Marilisa Berti de Azevedo Barros ◽  
Chester Luiz Galvão César ◽  
...  
Keyword(s):  
Physical Activity ◽  
The Elderly ◽  
Multiple Regression Model ◽  
Sao Paulo ◽  
Lifestyle Changes ◽  
Cluster Sampling ◽  
São Paulo ◽  
Factors Associated ◽  
Diet And Physical Activity ◽  
And Control

The aim of this study was to analyze the prevalence of hypertension and control practices among the elderly. The survey analyzed data from 872 elderly people in São Paulo, Brazil, through a cluster sampling, stratified according to education and income. A Poisson multiple regression model checked for the existence of factors associated with hypertension. The prevalence of self-reported hypertension among the elderly was 46.9%. Variables associated with hypertension were self-rated health, alcohol consumption, gender, and hospitalization in the last year, regardless of age. The three most common measures taken to control hypertension, but only rarely, are oral medication, routine salt-free diet and physical activity. Lifestyle and socioeconomic status did not affect the practice of control, but knowledge about the importance of physical activity was higher among those older people with higher education and greater income. The research suggests that health policies that focus on primary care to encourage lifestyle changes among the elderly are necessary.

scholarly journals DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDS USING LINEAR PROGRAMMING

Irriga ◽  
2002 ◽  
Vol 7 (3) ◽  
pp. 214-225
Author(s):  
João Carlos Cury Saad ◽  
Miguel A Mariño
Keyword(s):  
Linear Programming ◽  
Annual Cost ◽  
Irrigation System ◽  
Pressure Head ◽  
Sao Paulo ◽  
São Paulo ◽  
Paulo State ◽  
Hydraulic Network ◽  
São Paulo State ◽  
E Mail

DESIGN OF MICROIRRIGATION SYSTEMS IN SLOPING LANDSUSING LINEAR PROGRAMMING[1]   João CarlosCury SaadDepartment of Rural Engineering, College of Agricultural Sciences, São Paulo State University, P.O. 237, CEP 18603-970, Botucatu, SP. E-mail: [email protected] A. MariñoDepartment of Land, Air and Water Resources and Department of Civil & Environmental Engineering, University of California, Davis, CA 95616, USA. E-mail: [email protected]    1 Summary  When the area to be irrigated has a high slope gradient in the manifold line direction, an option is to use a tappered pipeline to reduce pipe costs and keep pressure head variations within desired limits. The purpose of this paper was to develop a linear programming model to design a microirrigation system with tappered manifold lines in downhill condition, minimizing the equivalent annual cost of hydraulic network and the energy annual cost, and assuring that the maximum variation in the pressure head previously established will be observed. The input data are: irrigation system layout, cost of all hydraulic network components and energy cost. The output are: equivalent annual cost, pipeline diameter in each line of the system, pressure head in each node, and total operating pressure head. To illustrate its capability, the model was applied in a citrus orchard in Sao Paulo State, Brazil. The model proved to be efficient in the design of the irrigation system in terms of emission uniformity desired. The pumping annual cost must be considered in the microirrigation system design because it yields a lower total annual cost when compared with the same alternative without that cost.  Keywords: linear programming, optimization, slope land, micro irrigation    SAAD, J. C. C.; MARIÑO, M. A.  DIMENSIONAMENTO DE SISTEMAS DE IRRIGAÇÃO POR MICROASPERSÃO EM ÁREAS COM DECLIVIDADE UTILIZANDO PROGRAMAÇÃO LINEAR   2 Resumo  Quando a área a ser irrigada apresenta um elevado gradiente de declive na direção das linhas de derivação, uma opção de dimensionamento é o uso de tubulações com vários diâmetros para economizar no custo e também para manter a variação de pressão dentro dos limites desejados. O objetivo deste trabalho foi desenvolver um modelo de programação linear para dimensionar sistemas de irrigação por microaspersão com linhas de derivação com mais de um diâmetro e operando em declive, visando a minimização do custo anualizado da rede hidráulica e do custo anual com energia elétrica, além de assegurar que a máxima variação de carga hidráulica na linha será respeitada. Os dados de entrada são: configuração da rede hidráulica do sistema de irrigação, custo de todos os componentes da rede hidráulica e custo da energia.  Os dados de saída são: custo anual total, diâmetro da tubulação em cada linha do sistema, carga hidráulica em cada ponto de derivação e altura manométrica total. Para ilustrar a potencialidade do modelo desenvolvido, ele foi aplicado em um pomar de citros no Estado de São Paulo, Brasil. O modelo demonstrou ser eficiente no dimensionamento do sistema de irrigação quanto à obtenção da uniformidade de emissão desejada. O custo anual com bombeamento deve ser considerado no dimensionamento de sistemas de irrigação por microaspersão porque ele gera menores valores de custo anual total quando comparado com a mesma alternativa que não considera aquele custo.  UNITERMOS: programação linear, otimização, declividade, microaspersão 

scholarly journals INCENTIVES AND ENTRENCHMENT IN BRAZILIAN AGRICULTURAL COOPERATIVES: EVIDENCE FROM COOPERATIVES IN THE STATE OF SÃO PAULO

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Leandro Massaki Yonemura ◽  
Davi Rogério De Moura Costa
Keyword(s):  
Corporate Governance ◽  
Sao Paulo ◽  
The State ◽  
General Assembly ◽  
Agricultural Cooperatives ◽  
São Paulo ◽  
Market Failures ◽  
Structure And Property ◽  
Economic Organizations ◽  
And Control

Agricultural cooperatives are economic organizations that arise due to market failures and that adopt relevant roles in the organization of producers in different countries around the world. Research on the corporate governance of these organizations is abundant due the peculiarities of their structure and property rights. In Brazil, studies in this area are infrequent and in need of furtherexplanation. The aims of the present study were to identify and characterize the incentive mechanisms (remuneration) used by agricultural cooperatives and, in addition, to determine if they have an effect on the president’s longevity in office in agricultural cooperatives. The study was conducted by considering the different models of corporate governance and analyzing a sample of cooperatives from the State of São Paulo. The methodology asked for access to the bylaws, Minutes of general assembly s (MoGA) and registration forms, available for download on the website of the CommercialCouncil of the State of Sao Paulo (JUCESP). The sample consisted of data from 49 agricultural cooperatives. The results indicate that larger cooperatives tend to develop governance structures that separate ownership and control. Moreover, these organizations have the best-paid presidents.In general, apparently there is a positive relationship between entrenchment and remuneration and company size. These exploratory results identify interesting elements for further researchon cooperative governance. However, the methodological challenges for determining causalitymust be overcome by research designed to demonstrate the effect of remuneration on entrenchmentof the president and its effect on the performance of the cooperative.

scholarly journals Efecto del extracto acuoso de tubérculos de Cyperus rotundus L. en la propagación por esquejes de Jatropha curcas L.

2016 ◽  
Vol 18 (1) ◽  
pp. 09
Author(s):  
Luan Hamilton de Souzaa ◽  
Lucas Lafratta Calandrelli ◽  
José Luis Soto Gonzales
Keyword(s):  
Jatropha Curcas ◽  
Sao Paulo ◽  
Cyperus Rotundus ◽  
Distilled Water ◽  
São Paulo ◽  
Synthetic Auxin ◽  
Jatropha Curcas L ◽  
Randomized Experimental Design ◽  
Cutting Length ◽  
And Control

<p><strong>RESUMEN</strong></p><p>Este estudio se realizó en la UNESP de campus de Isla Solteira - São Paulo (Brasil), en condiciones de invernadero bajo condiciones controladas. El objetivo fue estudiar la inducción de enraizamiento de esquejes de pinhão-manso (Jatropha curcas L.) mediante la aplicación de diferentes concentraciones de extractos acuosos de tubérculos de tiririca (Cyperus rotundus L.) en comparación con la aplicación de la auxina sintética Ácido indolbutírico (AIB). El experimento fue instalado en 15/10/2011, utilizando un diseño experimental completamente al azar con 4 tratamientos (tubérculos de pinhão-manso 25g por 0,5 L; 1,0 L y 1,5 L de agua destilada. Ácido indolbutírico en polvo en una concentración de 1000 ppm) con un testigo. Se realizó el experimento con tres repeticiones por tratamiento y 10 esquejes por repetición, por un total de 150 esquejes. Los esquejes de pinhão-manso se estandarizaron con 10 cm de largo y 6.9 mm de diámetro. Posteriormente se sumergieron en los extractos de tiririca durante 30 minutos y se luego fue incorporada la auxina sintética en polvo (AIB) en la base de los esquejes. El plantío fue realizado en recipientes con substrato. 60 días después de la instalación del experimento se evaluó el porcentaje de esquejes enraizados, número de raíces por cada esqueje, longitud máxima raíz emitida por esquejes y el peso de la masa de materia fresa seca de las raíces. Se concluyó que el extracto acuoso tiririca en la concentración de 25g por 1.5L de agua destilada proporciono el mayor porcentaje de esquejes enraizados; sin embargo la AIB en la concentración de 1000 ppm proporciono raíces en mayor número y más vigorosa.</p><p><strong> </strong></p><p><strong>RESUMO</strong></p><p>Este trabalho foi realizado na UNESP de Ilha Solteira – São Paulo (Brasil), em casa de vegetação, sob condições controladas. O objetivo foi estudar a indução do enraizamento de estacas de pinhão-manso (<em>Jatropha curcas</em> L.) com a aplicação de diferentes concentrações de extratos aquosos de tubérculos de tiririca (<em>Cyperus rotundus</em> L.) em comparação com a aplicação de auxina sintética (ácido indolbutírico). O experimento foi instalado no dia 15/10/2011, utilizando delineamento experimental inteiramente casualizados nos 4 tratamentos (25g de tubérculos de tiririca por 0,5 L, 1,0 L e 1,5 L de água destilada. E AIB em pó, na concentração de 1000 ppm) e testemunha, com três repetições por tratamento e 10 estacas por repetição, totalizando 150 estacas. As estacas de pinhão-manso foram padronizadas com 10 cm de comprimento e 6 a 9 mm de diâmetro. Posteriormente foram imersas nos extratos de tiririca por 30 minutos, e aplicado auxina sintética, AIB em pó, na base das estacas. O plantio foi em jardineiras contendo substrato. Aos 60 dias após a instalação do experimento, foram avaliadas a porcentagem de estacas enraizadas, número de raízes por estaca, comprimento da maior raiz emitida por estacas, e massa da matéria fresca e seca das raízes. Concluiu-se que o extrato aquoso de tiririca na diluição 25g por 1,5L de água destilada, proporcionou maior porcentagem de estacas enraizadas, porém o AIB 1000 ppm produziu raízes em maior número e mais vigorosas.</p><p> </p><p><strong>Abstract</strong></p><p>This study was conducted at UNESP of Single Island - Sao Paulo (Brazil), in a greenhouse under controlled conditions. The aim was to study the induction of rooting pinhão-manso <em>Jatropha curcas</em> L. by applying different concentrations of aqueous extracts of tiririca <em>Cyperus rotundus</em> L. compared with the application of synthetic auxin (IBA). The experiment was installed on 15/10/2011, using completely randomized experimental design in 4 treatments (25g nutsedge tubers by 0.5 L, 1.0 L and 1.5 L of distilled water. And AIB powder, at 1000 ppm) and control with three replicates per treatment and 10 cuttings per replication, totaling 150 cuttings. The pinhão-manso cuttings were standardized with 10 cm long and 6-9 mm in diameter. Subsequently they were immersed in sedge extracts for 30 minutes and applied synthetic auxin, AIB powder at the base of the cuttings. The plantation was in bib containing substrate. 60 days after the installation of the experiment were evaluated the percentage of rooting, number of roots per cutting, length of roots emitted by cuttings, and fresh weight and dry roots. It was concluded that the aqueous extract of sedge dilution 25g for 1.5L of distilled water showed higher percentage of rooted cuttings, but IBA 1000 ppm produced roots in greater numbers and more vigorous.</p>

scholarly journals Testing pigs of non-technified rearing farms for serum antibodies against Taenia solium in a region of the state of São Paulo, Brazil

2016 ◽  
Vol 36 (3) ◽  
pp. 141-144 ◽  
Author(s):  
Gabriel A.M. Rossi ◽  
Henrique M.S. Almeida ◽  
Rafaella P.M. Guimarães-Peixoto ◽  
Emílio C. Acevedo-Nieto ◽  
Paulo S.A. Pinto ◽  
...  
Keyword(s):  
Risk Factors ◽  
Taenia Solium ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Intermediate Hosts ◽  
Biological Cycle ◽  
Serum Antibodies ◽  
Factors Associated ◽  
And Control

Abstract: Taenia solium is a zoonotic tapeworm of great importance in developing countries, due to the occurrence of human taeniasis and cysticercosis. Pigs have an important role in the biological cycle of the parasite as intermediate hosts. The scientific literature has been describing risk factors associated with the occurrence of this disease that must be avoided in countries with poor sanitation, in order to reduce the exposure of swine to the parasite eggs. This research focused on testing pigs of non-technified rearing farms for serum antibodies against Taenia solium in the region of Jaboticabal municipality, in the state of São Paulo, Brazil. The found prevalence was 6.82% (CI 95% 4.18 - 9.45) at animal level and 28.87% (CI 95% 16.74 - 40.40) at herd level. These figures are probably associated with low technification adoption during animal rearing in the studied area, which increased the exposure of the animals to risk factors associated with the occurrence of Taenia solium complex. The results found based on serological evidences of swine cysticercosis in the studied region serves as a warning to public sanitary authorities to improve public health and control T. solium.

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