Dissertations / Theses on the topic 'Yeild'
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Sanaei, Akbar. "Instrumented combine harvester based reliable yeild mapping aided by GIS/GPS." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262893.
Full textRadic, S. "Studies on Calcified Seaweed, Legume Yeild and Nitrogen Fixation in acid soils in the Falkland Islands." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527893.
Full textCox, Graeme J. "A yield mapping system for sugar cane chopper harvesters." University of Southern Queensland, Faculty of Engineering and Surveying, 2002. http://eprints.usq.edu.au/archive/00004617/.
Full textTerrill, Thomas Howard. "Effects of soil moisture and al-nitrilotriacetate on yeild chemical composition and digestibility of ryegrass (Lolium multiflorum, L.) by meadow voles." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53088.
Full textMaster of Science
Creech, Cody F. "Effects of Planting Date, Harvest Date, and Environmental Conditions on Germination of Forage Kochia Accessions." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1264.
Full textDobson, Filippa Jane. "Barren (yeld ) : (traces of ain) landscape, postcolonialism and identity." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/20604/.
Full textSonesson, Mats. "Methane yeilds from anaerobic digestion of food waste : Variation of load, retention time and waste composition in simulating methane yeilds, using the "Anaerobic digestion model no.1" (ADM1)." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-28693.
Full textCookson, Sarah L. "YeiL, the third member of the CRP-FNR family of global transcription factors in 'Escherichia coli'." Thesis, University of Sheffield, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434496.
Full textRusch, Peter C. "Precision farming in South Africa." Diss., Pretoria : [s.n.], 2001. http://upetd.up.ac.za/thesis/available/etd-01072004-153302.
Full textČerný, Jakub. "Kritická analýza investování do bytů z pohledu fyzických osob v České republice." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-232599.
Full textCoral, Gustavo. "Utilização de modelo agrometeorologico na estimativa de produtividade da cultura da soja, nos estados de GO, MT, PR, RS e SP." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257142.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: A agricultura é a atividade econômica mais afetada pelo clima. Os fenômenos meteorológicos como a temperatura, precipitação, umidade relativa, velocidade do vento, influenciam tanto na produtividade e qualidade dos produtos agrícolas, quanto nos custos de produção. Uma das ferramentas mais utilizadas para quantificar os efeitos causados pelos fenômenos meteorológicos na produtividade agrícola são os modelos agrometeorológicos. No presente trabalho foi utilizado um modelo agrometeorológico multiplicativo, que se baseia na penalização da produtividade agrícola, em decorrência de fenômenos meteorológicos desfavoráveis ao desenvolvimento da cultura, para a estimativa de safra da soja. O estudo abrangeu um total de 66 municípios nos estados de Goiás, Mato Grosso, Paraná, Rio Grande do Sul e São Paulo. Foram relacionados os municípios que possuíam área plantada de soja superior à 2000 ha, com os municípios que possuíam estações pluviométricas operando entre os anos de 1994à 2000. Utilizou-se mapas pedológicos para diferenciação dos tipos de solos predominantes em cada município, com a finalidade de se obterem informações sobre a capacidade de água disponível no solo (CAD), bem como a média histórica da evapotranspiração potencial (ETP) para o cálculo do balanço hídrico decendial e da evapotranpiração real (ETR). As épocas de semeadura selecionadas foram baseadas no Zoneamento Agroclimático da cultura da soja, elaborado pela Coordenação Nacional do Zoneamento Agrícola. As produtividades estimadas foram comparados com as produtividades reais obtidas através de dados do IBGE. O modelo apresentou correlações significativas entre as produtividades reais e as estimadas,a nível estadual. Os coeficientes de determinação para os estados de Goiás, Mato Grosso, Paraná, Rio Grande do Sul a São Paulo foram respectivamente, 0,5831; 0,6933;0,9162; 0,8504; 0,6426
Abstract: Agriculture is the economic activity more affected by the climate. The meteorologicalphenomena like temperature, precipitation, relative humidity or wind speed have influence in the productivity and agricultural product quality, as well as in the productioncosts.One of the tools more used to quantify the effect caused for the meteorological phenomenain the agricultural productivity is the agrometeorologicalmodel. In the present work an agrometeorologicalmodel for estimate the productivity of the soybean was studied using a total of 66 cities in the states of Goiás, Mato Grosso, Paraná, Rio Grande do Sul and São Paulo. Productivity data of soybean was crossed with rainfall data of pluviometric stations observedbetweenthe years of 1994to the 2000. It was also used pedological maps for differentiation of the types of predominant soil in each city for estimating available water hold capacity of the soil. Historical data was used for estimasting the average of the potential evapotranspiration (ETP) for decendial hidric . balance and evapotranpiration reference (ETR). The selected times for seeding were based on the Agroclimatic Risc Zoning for soybean, elaborated for the National Coordination of the Agricultural Zoning. The calculated produtivities were compared with the data of produtivitiesused by IBGE. The model presented significant correlations between the real produtivities at the leveI of states. The coefficients of determination for the states of Goiás, Mato Grosso, Paraná, Rio Grande do Sul and São Paulo were respectively, 0,5831; 0,6933; 0,9162; 0,8504; 0,6426
Mestrado
Agua e Solo
Mestre em Engenharia Agrícola
Tognete, Milena Heloisa Pozenatto Bicudo [UNESP]. "A influência da matéria-prima e diferentes cepas de levedura no rendimento fermentativo de um processo de obtenção de etanol." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150032.
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Este estudo tem como objetivo avaliar a matéria-prima e sua influência isolada no desempenho do rendimento fermentativo de uma linhagem padrão da levedura CAT-1 testada em 31 meios de cultivos provenientes do processo de fermentação alcoólica da Usina Virgolino de Oliveira – Unidade Catanduva. Os meios foram amostrados e compostos a cada quinzena durante toda as safras 2012 e 2013. O trabalho também tem como finalidade identificar a dinâmica populacional das leveduras do mesmo processo fermentativo, através da diferenciação das linhagens por cariotipagem. As cepas isoladas foram testadas em um meio de cultivo padrão para obtenção das características tecnológicas industriais através da metodologia da Capacidade Fermentativa. Os experimentos de fermentação foram realizados nos laboratórios da Usina Virgolino de Oliveira - Unidade Catanduva em escala reduzida sempre acompanhados de um ensaio padrão utilizando meio de cultivo sintético. O primeiro ponto de estudo consistiu na caracterização da matéria-prima, mosto, e sua capacidade isolada de perturbar o Rendimento Fermentativo. Enquanto que no segundo, onde onze diferentes cepas de levedura foram identificadas ao longo das duas safras, testadas em um mesmo meio de cultivo padrão para obtenção de parâmetros industriais tecnológicos como rendimento em produto (Yp/s), rendimento em célula (Yx/s), Velocidade de consumo do substrato (Vcs), Produtividade (PROD) e Conversão (CONV) e estudada a influência no Rendimento Fermentativo. O terceiro ponto de estudo foi a comparação entre os rendimentos fermentativos obtidos experimentalmente e os rendimentos fermentativos industriais da Planta. O impacto da presença das cepas com maior rendimento em etanol foi estudado em relação aos valores de rendimento fermentativo industrial. Os resultados mostraram diferenças de desempenho da Cepa Padrão na maioria das quinzenas testadas, o que significa que há variação da matéria-prima ao longo da safra e entre as safras capazes de afetar rendimento fermentativo. Diferenças de rendimento também foram observadas entre as onze cepas nativas testadas, porém com oscilações menores e menos consideráveis do que com a matéria-prima. Os resultados obtidos em escala reduzida com base nos balanços de massa se apresentaram valores semelhantes em relação aos números de referência o que sugere que a metodologia usada para avaliar a capacidade fermentativa das cepas e a qualidade da matéria-prima foi adequada. Apesar da forte influência dos fatores estudados, não foi possível afirmar, através destes experimentos, qual deles teve papel determinante no impacto do Rendimento Fermentativo. Isso sugere que outros fatores não estudados neste trabalho estão diretamente relacionados que são capazes de influenciar o Rendimento Fermentativo.
The purpose of this study is to evaluate the sucrose mash and its influence isolated on the performance of the Fermentative Yeld of a standard strain from CAT-1 yeast tested in 31 different culture medium formulation from the Virgolino de Oliveira Plant – Catanduva Unit alcoholic fermentation process. The culture medium formulation were sampled and composed every fortnight during the whole 2012 and 2013 harvest. The work also has as purpose to evaluate the yeasts population dynamics of the same fermentative process, through the differentiation of the strains by karyotyping. The isolated strains were tested in a standard culture medium to obtain the industrial technological characteristics through the Fermentative Capacity methodology. Fermentation experiments were carried out in mill’s laboratories on a reduced scale always accompanied by a standard assay using synthetic culture medium formulation. The first point of study consisted in the characterization of the raw material, sucrose mash, and its isolated capacity to disturb Fermentative Yield. In the second, eleven different strains of yeast identified during the two harvests, they were tested in the same culture medium to obtain industrial technological parameters as Yield in product (Yp/s), Yield in cell (Yx/s), Substrate consumption velocity (Vcs), Productivity (PROD) and Conversion (CONV) and studied their influence on the Fermentative Yield. The third point of study was the comparison between the fermentative yields obtained experimentally and the industrial fermentative yields of the Plant. The impact of the presence of strains with higher Yp/s was studied in relation to industrial fermentation yield values. The results showed differences in performance of the Standard Strain in most of the fortnight tested, which means that there is variation of the raw material during the harvest and between the crops capable of affecting fermentative yield. There were also Yeld difference observed among the eleven native strains tested, but with smaller and less considerable oscillations than with the raw material. The results obtained on a reduced scale based on the mass balances were within the range expected in relation to the reference values, which suggests that the methodology used to evaluate the fermentative capacity of the strains and the quality of the raw material was adequate. Despite the strong influence of the studied factors, it was not possible to prove, through these experiments, which one had a determinant role in the Fermentative Yield impact. This suggests that other factors not studied in this work are directly related that are able to influence Fermentative Yield.
Calomeni, Gustavo Delfino. "Avaliação comparativa da suplementação de ácidos graxos saturados e insaturados sobre o desempenho produtivo, qualidade oocitária e embrionária, e metabolismo de vacas leiteiras no período de transição e início de lactação." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-25052016-140302/.
Full textThe aim of the current experiment was to evaluate the saturated and unsaturated fatty acid supplementation effects on metabolism, productive and reproductive performance during the transition period and early lactation of dairy cows. Thirty-six Holstein cows were randomly distributed to one of three experimental treatments. Throughout the pre-partum period cows received: Control (CON), no fat supplement with 2.8% of ether extract (EE) on DM basis; Saturated fat (SAT) MAGNAPAC® (Tectron Ltda.), addition of 2.4% of MAGNAPAC and 4.7% of EE on DM basis; Unsaturated fat (UNS) Whole soybeans, addition of 11% of whole raw soybeans and 4.7% of EE in DM basis. In post-partum period the diets follows: Control (CON), no fat supplementation with 2.8% of ether extract (EE) in DM basis; Saturated fat (SAT) MAGNAPAC ® (Tectron Ltda.), addition of 2.6% of MAGNAPAC and 5.0% of EE in DM basis; Unsaturated fat (UNS) Whole soybeans, addition of 13% of whole raw soybeans and 5.0% of EE in DM Basis. The treatments were supplied from day 35 of expect calving date until 90 days in milk. During the pre-partum period, diet forage to concentrate ratio was 70:30, in which corn silage was used as the forage source. During the post-partum period, diet forage to concentrate ratio was 50:50, in which Tifton hay (5%) and corn silage (45%) were used as forage sources. The milk yield was daily measured during all experimental period. The samples used for milk composition and milk fatty acid profile were collected once a week, milk from the morning and evening milking being mixed proportionally to the milk yield. Blood samples for metabolites analysis were collected weekly before the morning feeding. Follicular dynamic was monitored by trans ´rectal ultrasonography form 14 until 90 days in milk. Ovum pick-up and in vitro fertilization were performed on days 30, 60, 90 post-partum. Data were analyzed using the PROC MIXED procedure of SAS (2004). Differences among treatments were evaluated by orthogonal contrasts as follows: Control vs Fat sources (C1), and Saturated fatty acid source vs Unsaturated fatty acid source (C2). Significance level was set at 5%. In postpartum, fat supplementation increased NEFA concentrations when compared to control diet. The UNS treatment reduced total protein concentration in blood compared to SAT. Diet*time interaction effect was observed in total cholesterol, LDL and BHB. The UNS decreased fat corrected milk, fat content, milk protein and fat yield compared to SAT. Fat supplementation decreased Σ Saturated F.A, fatty acids lower than 16 C and the relationship between saturated and unsaturated fatty acids, and increased the concentration of fatty acids higher than 16 C, unsaturated fatty acids with 18 C, and Σ PUFA. UNS increased Σ PUFA and decreased fatty acids with 16 C, when compared to SAT. Fat supplementation decreased class 1 follicle and total follicles. Treatments did not affect embryo and oocyte quality. Supplementation of unsaturated fat, through supplementation of whole raw soybean for cows in the transition period and early lactation did not affect the reproductive performance (follicular dynamics and oocyte and embryo quality) and reduced the productive performance due to decrease of milk fat production and fat corrected milk for 3.5% of the supplemented animals
Lobo, Thomaz Figueiredo [UNESP]. "Manejo de lodo de esgoto em rotações de culturas no sistema de plantio direto." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/99944.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A disposição final do lodo de esgoto vem se caracterizando como um dos problemas ambientais urbanos mais relevantes da atualidade, e cresce diariamente tanto nos países desenvolvidos quanto naqueles em desenvolvimento, como reflexos da ampliação das redes de coleta e incremento dos níveis de tratamento. O objetivo deste trabalho foi utilizar o lodo de esgoto compostado como fornecimento de N em sistema de sucessão de culturas avaliando o desenvolvimento, nutrição, produtividade das culturas trabalhadas e a melhoria da fertilidade do solo. Os experimentos foram conduzidos na Fazenda São Manuel da Faculdade de Ciências Agronômicas da UNESP, Campus de Botucatu, localizada no município de São Manuel/SP. Antecedendo a instalação do experimento, foram cultivados 2 ciclos consecutivos de girassol semeados em dezembro de 2004 e novembro de 2005, respectivamente, com aplicações de lodo de esgoto, sendo cultivado trigo e triticale para avaliar o efeito residual destas duas aplicações em abril de 2006. Os ensaios presentes neste trabalho foram em sistema de sucessão de culturas (aveia, feijão, triticale, girassol e trigo). Em sistema de semeadura direta, sendo somente o primeiro cultivo, aveia em sistema convencional com lodo de esgoto tratado. Os outros ensaios foram com lodo de esgoto compostado. Adotou-se o delineamento experimental em blocos casualizado constituído por 6 tratamentos e 5 repetições. Os tratamentos foram: T0 – adubação mineral de acordo com o Boletim Técnico 100, mas sem N; T1 – adubação química de acordo com o Boletim Técnico 100 do IAC; T2 – 50% do N proveniente do lodo de esgoto e o restante foi proveniente da adubação química; T3 – 100 % do N proveniente do lodo de esgoto; T4 – 150% do N proveniente do lodo de esgoto; T5 – 200% do N proveniente do lodo de esgoto. Utilizou-se o lodo de esgoto da Estação de Tratamento de Esgoto...
The final display of sewage sludge has been characterized as one of the most relevant environmental problems in the cities; it daily increases in both developed and developing countries, resulting in larger collection networks and increased treatment levels. The aim of this study was to use compost sewage sludge as N supply for crop rotation system, assessing the development, nutrition and productivity of treated cultures and the improvement of soil fertility. The experiments were carried out in São Manuel Farm, which belongs to the School of Agronomical Sciences, UNESP, Botucatu Campus, and is located in São Manuel Municipality, São Paulo State, Brazil. Before the experiment establishment, 2 consecutive sunflower cycles were sown in December 2004 and November 2005, respectively, including sewage sludge application, and wheat and triticale were cultivated to assess the residual effect of those two applications in April 2006. The assays in the present study were done in crop rotation system (oat, bean, triticale, sunflower and wheat). Direct planting system was used only for the first cultivation; oat was in conventional system with treated sewage sludge. The remaining assays included compost sewage sludge. The adopted experimental design was in randomized blocks constituted of 6 treatments and 5 replicates. Treatments were: T0 – mineral fertilization according to Technical Bulletin 100, but without N; T1 – chemical fertilization according to IAC Technical Bulletin 100; T2 – 50% N from sewage sludge and the remaining N from chemical fertilization; T3 – 100% N from sewage sludge; T4 – 150% N from sewage sludge; T5 – 200% N from sewage sludge. The employed sewage sludge was from the Sewage Treatment Plant in Jundiaí Municipality, São Paulo State. Each plot was 100 m2 with 3m spacing between plots in one same block. Oat culture was assessed from the 60th to the 120th day after... (Complete abstract click electronic access below)
Costa, Antonio Cesar Domingos. "Altos dividend yelds como estratÃgia para composiÃÃo de carteiras de investimentos." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6239.
Full textO presente trabalho buscou verificar se a utilizaÃÃo do indicador fundamentalista dividend yield como critÃrio para a seleÃÃo de ativos à uma estratÃgia eficiente para se obter essa maximizaÃÃo do retorno de um investimento. Para isso, foi usada a tÃcnica de formaÃÃo de carteiras, criando a carteira alvo da pesquisa, composta por aÃÃes de alto dividend yield, e tambÃm uma carteira de controle, compostas por aÃÃes de baixo dividend yield, sendo ambas comparadas à carteira de mercado. Como objetivos secundÃrios, buscou-se incluir na pesquisa uma anÃlise de risco dessas carteiras e outra de desempenho por unidade de risco. Foi concluÃdo nÃo haver evidÃncias estatisticamente significantes da garantia de que uma carteira composta por aÃÃes de alto dividend yield possa superar o mercado, mas foram verificadas evidÃncias que essa carteira possui menor volatilidade que o mercado, podendo ser uma opÃÃo de investimento mais defensiva em momento de cenÃrio macroeconÃmico desfavorÃvel
This study sought to determine whether the use of the indicator fundamentalist dividend yield as a criterion for yield as a criterion for selection of assets is an effective strategy to achieve that maximization of the return on an investment. For this, we used the technique of formation of portfolios, creating the target portfolio of the research, consisting of stocks of high dividend yield, and also a control portfolio, consisting of low dividend yield stocks, and being both compared to the market portfolio. As a secondary objective, we sought to include in the research a risk analysis study of these portfolios and portfolio and other of performance per unit of risk. It was concluded that there was no statistically significant evidences of assurance that a portfolio consisting of high dividend yield stocks can outperform the market, but evidences were found that this portfolio has less volatility than the market, may be a more defensive investment option in times of unfavorable macroeconomic scenario
Lopes, Welder de Araújo Rangel. "Produção e qualidade de alho nobre submetido a diferentes períodos de vernalização e épocas de plantio em Baraúna, RN." Universidade Federal Rural do Semi-Árido, 2014. http://bdtd.ufersa.edu.br:80/tede/handle/tede/163.
Full textConselho Nacional de Desenvolvimento Científico e Tecnológico
In recent years, the use of vernalization enabled the cultivation of noble garlic (most valuable garlic in the Brazilian market) in regions where photoperiod and temperature do not meet the requirements of the crop. Given this, in order to evaluate effects of different vernalization periods and planting dates on the production and quality of the garlic Roxo Pérola de Caçador, an experiment was conducted in Baraúna, RN, between May and October 2012. The experimental design was a randomized complete block design with three replications. The treatments were arranged in splitplots with the plots by planting dates: May 22, June 5 and June 23, and the splitplots by vernalization periods garlic seed at 4 ± 1 °C: 50, 55, 60, 65 and 70 days, and 65-70% of relative humidity. Plant height, leaf number, cycle, bulb final stand, average bulb weight, percentage of bulbs differentiation of cloves, percentage of oversprouting plants, total yield of bulbs, classification of bulbs, number of cloves per bulb, classification of cloves, bulb diameter, soluble solids, total soluble sugars, tritable acidity, pH, SS/AT ratio, pungency, total solids and industrial index were evaluated. The planting on May 22 gave higher plant height, leaf number, final stand and average bulb weight; the cycle decreased with increasing time of vernalization; were formed bulbs with differentiation of cloves in all treatments, and absence of oversprouting of plants; total bulb yield increased with time until 63 days of vernalization during at plantations of May 22 and June 23, with averages of 5.20 and 3.85 t ha-1; by combining the planting on May 22 time and 65 days of vernalization, showed the highest number of cloves per bulb (7.51) and the highest percentage of commercial bulbs, which are distributed in classes 3 (32 to 37 mm diameter), 4 (37 to 42 mm diameter) and 5 (42 to 47 mm diameter). For attributes of quality, the increased length of vernalization up to 64 days allowed in increments bulb diameter and soluble solids, with maximum of 34.5 mm and 33.65%, respectively; the highest levels of total soluble sugars, bulb diameter and soluble solids were obtained at planting on May 22; the tritable acidity increased with time vernalization during plantations of 5 and 23 June, when there was a reduction in SS/AT ratio; and in general, all treatments allowed high total solids and simultaneous pungency, with good prospects for industrialization. Thus, we recommend planting the cultivar Roxo Pérola de Caçador on Baraúna/RN, in the second half of May, using 65 days of vernalization
Nos últimos anos, o uso da vernalização possibilitou o cultivo de alho nobre em regiões nas quais as condições de fotoperíodo e temperatura não satisfazem as exigências da cultura. Diante disso, a fim de avaliar os efeitos de diferentes períodos de vernalização e épocas de plantio sobre a produção e qualidade do alho Roxo Pérola de Caçador, realizou-se um experimento em Baraúna, RN, de maio a outubro de 2012. O delineamento experimental adotado foi o de blocos casualizados completos, com três repetições. Os tratamentos foram dispostos em parcelas subdivididas, sendo as parcelas repre¬sentadas pelas épocas de plantio: 22 de maio, 5 de junho e 23 de junho, e as subparcelas pelos períodos de vernalização pré-plantio do alho-semente a 4 ± 1°C: 50, 55, 60, 65 e 70 dias, e umidade relativa de 65-70%. Foram avaliados: altura de plantas, número de folhas, ciclo, estande final, massa média de bulbos, percentagem de bulbos com diferenciação de bulbilhos, percentagem de superbrotamento de plantas, produtividade total de bulbos, classificação dos bulbos, número de bulbilhos por bulbo, classificação dos bulbilhos, diâmetro de bulbo, sólidos solúveis, açúcares solúveis totais, acidez titulável, pH, relação SS/AT, pungência, sólidos totais e índice industrial. O plantio em 22 de maio proporcionou altura de planta, número de folhas, estande final e massa média de bulbos superior às demais épocas de plantio; o ciclo decresceu com o aumento do tempo de vernalização; houve formação de bulbos com diferenciação de bulbilhos em todos os tratamentos e ausência de superbrotamento de plantas; a produtividade total de bulbos aumentou com o tempo de vernalização até 63 dias para os plantios em 22 de maio e 23 de junho, com médias de 5,20 e 3,85 t ha-1; por meio da combinação entre o plantio em 22 de maio e 65 dias de vernalização, foi obtido o maior número de bulbilhos por bulbo (7,51) e o maior percentual de bulbos comerciais, sendo estes distribuídos nas classes 3 (maior que 32 até 37 mm), 4 (maior que 37 até 42 mm) e 5 (maior que 42 até 47 mm). Para os atributos de qualidade, o aumento do tempo de vernalização até 64 dias possibilitou incrementos no diâmetro de bulbos e sólidos solúveis, com máximos de 34,5 mm e 33,65%, respectivamente; os maiores teores de açúcares solúveis totais, diâmetro de bulbos e sólidos solúveis foram obtidos no plantio em 22 de maio; a acidez titulável aumentou com o tempo de vernalização nos plantios de 5 e 23 de junho, quando houve redução na relação SS/AT. De modo geral, todos os tratamentos possibilitaram elevados teores de sólidos totais e pungência simultâneos, com boas perspectivas para a industrialização. Desta forma, recomenda-se o plantio da cultivar Roxo Pérola de Caçador em Baraúna/RN, na segunda quinzena de maio, utilizando-se 65 dias de vernalização
Lobo, Thomaz Figueiredo 1969. "Manejo de lodo de esgoto em rotações de culturas no sistema de plantio direto /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/99944.
Full textAbstract: The final display of sewage sludge has been characterized as one of the most relevant environmental problems in the cities; it daily increases in both developed and developing countries, resulting in larger collection networks and increased treatment levels. The aim of this study was to use compost sewage sludge as N supply for crop rotation system, assessing the development, nutrition and productivity of treated cultures and the improvement of soil fertility. The experiments were carried out in São Manuel Farm, which belongs to the School of Agronomical Sciences, UNESP, Botucatu Campus, and is located in São Manuel Municipality, São Paulo State, Brazil. Before the experiment establishment, 2 consecutive sunflower cycles were sown in December 2004 and November 2005, respectively, including sewage sludge application, and wheat and triticale were cultivated to assess the residual effect of those two applications in April 2006. The assays in the present study were done in crop rotation system (oat, bean, triticale, sunflower and wheat). Direct planting system was used only for the first cultivation; oat was in conventional system with treated sewage sludge. The remaining assays included compost sewage sludge. The adopted experimental design was in randomized blocks constituted of 6 treatments and 5 replicates. Treatments were: T0 - mineral fertilization according to Technical Bulletin 100, but without N; T1 - chemical fertilization according to IAC Technical Bulletin 100; T2 - 50% N from sewage sludge and the remaining N from chemical fertilization; T3 - 100% N from sewage sludge; T4 - 150% N from sewage sludge; T5 - 200% N from sewage sludge. The employed sewage sludge was from the Sewage Treatment Plant in Jundiaí Municipality, São Paulo State. Each plot was 100 m2 with 3m spacing between plots in one same block. Oat culture was assessed from the 60th to the 120th day after... (Complete abstract click electronic access below)
Orientador: Hélio Grassi Filho
Coorientador: Leonardo Theodoro Büll
Banca: Dirceu Maximino Fernandes
Banca: Silvio José Bicudo
Banca: Munir Mauad
Banca: Rodrigo Domingues Barbosa
Doutor
Toledo, Elisabeth Regina de. "Mapeamento de QTLs utilizando as abordagens Clássica e Bayesiana." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-14112006-134805/.
Full textGrain yield and other important economic traits in maize, such as plant heigth, stalk length, and stalk diameter, exhibit polygenic inheritance, making dificult information achievement about the genetic bases related to the variation of these traits. The number and sites of (QTLs) loci that control grain yield in maize have been estimated. Associations between markers and QTLs were undertaken by composite interval mapping (CIM) and Bayesian interval mapping (BIM). Based on a set of grain yield data, obtained from the evaluation of 256 maize progenies genotyped for 139 codominant molecular markers, the presented methodologies allowed classification of markers associated to QTLs.Through composite interval mapping were significant when value of likelihood ratio (LR) throughout the chromosome surpassed LR = 11; 5. Significant associations between markers and QTLs were obtained in three chromosomes, ten QTLs has been mapped, which explained 19; 86% of genetic variation. Predominant genetic action for mapped QTLs was partial dominance and (four QTLs) complete dominance (tree QTLs). Average dominance amounted to 1,12 and confirmed complete dominance for grain yield. Most alleles that contributed positively in trait came from parental strain L0202D. The latter had the highest yield rate. Adopting a Bayesian approach to inference, usually implemented via Markov chain Monte Carlo (MCMC). The output of a Bayesian analysis is a posterior distribution on the parameters, fully incorporating prior beliefs and parameter uncertainty. Reversible Jump MCMC (RJMCMC) is used in this work. Bayes Factor is used to estimate the number of QTL. Through Bayesian interval, significant associations between markers and QTLs were obtained in four chromosomes and five QTLs has been mapped, which explained 13; 06% of genetic variation. Most alleles that contributed positively in trait came from parental strain L02-02D. The latter had the highest yield rate.
Lengert, Adriana Hauser. "Perfil Hemogasométrico, Comportamento Ingestivo e Eficiência Alimentar de Vacas Holandês versus Mestiças Holandês- Jersey no Periparto." Universidade do Estado de Santa Catarina, 2016. http://tede.udesc.br/handle/handle/2550.
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More productive and efficient animals in the feed conversion and who can dribble more stressfull transition period are critical to improving performance in intensive milk production. Crossovers arise as an alternative by the search for healthier and more profitable animals. Blood gas analysis has a great importance on the evaluation of acidbase balance and electrolyte profile, providing essential information for the diagnosis and prognosis of several diseases in domestic animal. Dairy cows are more susceptible to metabolic disorders on the transition period and blood gas analysis provides important information to decision making and prevention of the development of many disorders. The objective was to determinate and compare the blood gas profile, feeding behavior and feed efficiency of Holstein and crossbreeding Holstein x Jersey cows in postpartum. Weekly, blood samples were collected from 24 Holstein and crossbred Holstein x Jersey cows. After blood sampling, a complete blood gas analysis was performed including pH, bicarbonate (HCO3 -), partial pressure of carbon dioxide (pCO2) and ionized calcium throughout the portable clinical analyzer for blood gas analysis, I-STAT using the CG8 + cartridge. The ingestive behavior, dry matter intake and milk production was evaluated. Data were submitted to analysis of variance with repeated measures, using the MIXED procedure of SAS statistical package. There were differences between genetic groups for pH values (P = 0.005), ionized calcium (P = 0.0203), base excess, BE (P = 0.0311), glucose (P = 0.0468) and hematocrit (P = 0.0209). The ionic calcium levels found were below the reference values throughout the evaluation period. However, crossbred cows showed higher levels of ionic calcium when compared to Holstein cows from prepartum period to parturition, being that and important health parameter of dairy cows, which is a positive characteristic feature on the choice for crossbreeding. The blood gas analysis has identified differences between Holstein and crossbred Holstein x Jersey cows in transition period. Crossbred cows Holstein x Jersey and Holstein cows have a similar dry matter intake and feed efficiency. Crossbred Holstein x Jersey cows tended to have higher feed efficiency for milk corrected to 4% fat and higher feed efficiency for fat production of. Crossbred Holstein x Jersey cows spend more time throughout the day feeding when compared to Holstein cows. Ruminations time was similar between Holstein and Holstein x Jersey cows
A busca por animais mais produtivos e eficientes na conversão de alimentos e que conseguem driblar mais os efeitos estressores do período de transição são fundamentais para melhorar o desempenho na produção intensiva de leite. Os cruzamentos surgem como uma alternativa pela busca de animais mais saudáveis e rentáveis. Vacas de leite no período de transição são muito suscetíveis a transtornos metabólicos, sendo que o exame hemogasométrico pode fornecer informações importantes, em nível de rebanho, para a tomada de decisão e prevenção da evolução de muitos distúrbios. O exame hemogasométrico é de grande importância na avaliação do equilíbrio ácido-básico e do perfil eletrolítico, fornecendo informações fundamentais para o diagnóstico e o prognóstico de várias enfermidades de animais domésticos. O objetivo deste trabalho foi determinar e comparar o perfil hemogasométrico, o comportamento ingestivo e a eficiência alimentar de vacas Holandês e Holandês x Jersey no período de transição pré e pós-parto. Coletaram-se semanalmente, amostras de sangue de 24 vacas Holandês e mestiças Holandês x Jersey, entre duas semanas pré e oito semanas pós-parto. Após o parto, as vacas foram alojadas em baias individualmente. Avaliou-se o pH sanguíneo, bicarbonato (HCO3 -), pressão de dióxido de carbono (pCO2) e cálcio ionizado através do analisador clínico portátil de gases sanguíneos, I-STAT utilizando o cartucho CG8+. Avaliou-se também, o comportamento ingestivo, o consumo de matéria seca e a eficiência alimentar das vacas. Os dados foram submetidos à análise de variância com medidas repetidas no tempo, utilizando-se o procedimento MIXED do pacote estatístico SAS. Houve diferença entre grupamentos genéticos nos valores de pH (P = 0,005), cálcio iônico (P = 0,0203), excesso de base, BE (P = 0,0311), glicose (P = 0,0468) e hematócrito (P = 0,0209). Os níveis de cálcio iônico encontraram-se abaixo dos valores de referência ao longo de todo o período de avaliação, mas, as vacas mestiças apresentaram níveis superiores de cálcio iônico quando comparadas às vacas Holandês, do pré-parto ao parto. O exame hemogasométrico permitiu identificar diferenças entre vacas Holandês e mestiças Holandês x Jersey no período de transição. Vacas mestiças Holandês x Jersey apresentam consumo de matéria seca diária e eficiência alimentar similar que as vacas puras Holandês. As vacas mestiças Holandês x Jersey tiveram tendência de maior eficiência alimentar para produção de leite corrigido a 4% de gordura e maior eficiência alimentar para produção de gordura. Vacas mestiças Holandês x Jersey passam mais tempo ao longo do dia se alimentando quando comparadas com as vacas Holandês, sem diferença no tempo de ruminação
Knob, Deise Aline. "Crescimento, desempenho produtivo e reprodutivo de vacas Holandês comparadas às mestiças Holandês x Simental." Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/953.
Full textImprovement of animal nutrition and management, together with genetic selection for milk yeld, increased the productivity of the herds, especially Holstein cows. On the other hand, characteristics related to fertility, health and longevity were disadvantaged The aim was to compare the development, milk yeld and composition, the health of the mammary gland, the body condition score (BCS), reproductive performance and longevity of crossbred Holstein x Simmental cows with Holstein cows. To obtain the data set two farms were used, one in Bom Retiro in SC and another in Carambeí in PR. For growth evaluation, weight gain of the animals were evaluated monthly. For production and udder health data from the official Dairy Herds Improvement Programs of the farm were used. BCS and body weight estimation were made on the farm with an interval between 60 and 90 days within one year. Information concerning the date of birth, parity date, date and number of inseminations, were obtained from the management software of the farms, generating information regarding the calving interval, days between calving to first service, conception rate, age at first calving. In one of the farms, calving were monitoring to quantify the calving difficulty, in the same farm, information of culling were obtained to determine the survival rate of cows. Data were analyzed by statistical package of SAS, using the MIXED and GENMOD procedures. For growth curve, production and composition of milk, (BCS) and body weight nonlinear regression was used, using the NLIN procedure of SAS and the curves of Gompertz (growth) and Wood (production and composition) were used because of having the lowest mean square. Holstein x Simmental crossbred cows produced more milk 31,8 x 30,4 kg/day (P < 0,05), with higher content of lactose and protein, with no difference for fat content. Holstein cows had higher somatic cell score (SCS) 4.49 x 2.93 (P <0.0001) compared to crossbreed cows. Holstein x Simmental crossbred cows had better BCS during lactation 3.65 x 2.94 (P <0.0001) with no difference in body weight in relation to Holstein cows. For growth of calves and heifers there was no difference between the genetic groups. Crossbred cows Holstein x Simmental had better reproductive performance than the Holstein cows, characterized by lower calving interval (381 x 445 days), higher conception rate (37.31 x 33, 64%) and shorter interval calving to first service (65.6 x 89.3 days). Crossbred cows Holstein x Simmental had higher survival rate than Holstein cows (83 x 92 In conclusion, crossbred cows Holstein x Simmental produce more milk with higher content of lactose and protein, have less ECS and greater BCS without difference for growing of heifers and body weight in adult age. Crossbred cows still have better reproductive performance and have a higher survival rate than the Holstein cows
Melhorias na nutrição e no manejo dos rebanhos bem como a seleção genética para a produção de leite aumentaram a produtividade dos animais. Em contrapartida, características relacionadas a fertilidade, sanidade e longevidade foram prejudicadas. O objetivo foi comparar o desenvolvimento, a produção e composição do leite, a sanidade da glândula mamária, o escore de condição corporal o desempenho reprodutivo e a longevidade de vacas mestiças Holandês x Simental em relação as vacas puras Holandês. Foram utilizadas duas propriedades, uma localizada no município de Bom Retiro em SC e outra em Carambeí no PR. Para avaliação de crescimento o ganho de peso dos animais foi avaliado mensalmente. Para obter dados produtivos e de sanidade de úbere foram utilizados dados do controle leiteiro oficial da propriedade. As avaliações de escore e peso vivo foram realizadas na propriedade com intervalo entre 60 e 90 dias no período de um ano, informações estas obtidas em uma das propriedades. As informações referentes a data de nascimento, data de parto, data e número de coberturas, foram obtidas junto aos software de gerenciamento de ambas as propriedades, gerando informações referentes ao intervalo entre partos (IEP), período parto primeiro serviço, taxa de concepção, idade ao primeiro parto. Em uma das propriedades foi feito o acompanhamento dos partos para quantificar a dificuldade de parto, da mesma forma, foram obtidas informações referentes ao descarte de animais para determinar a taxa de permanência no rebanho das vacas. Os dados foram analisados pelo pacote estatístico SAS, utilizando-se os procedimentos MIXED e GENMOD Para curva de crescimento, de produção e composição do leite bem como escore de condição corporal (ECC) e peso vivo foi utilizada a técnica de regressão não linear, do pacote estatístico SAS sendo que foram utilizadas as curvas de Gompertz (crescimento) e de Wood (produção e composição) por apresentarem o menor quadrado médio do erro. Vacas mestiças Holandês x Simental produziram mais leite 31,8 x 30,4 ( P < 0,05), com maior teor de lactose e proteína, sem diferença para teor de gordura. Vacas Holandês obtiveram maior escore de células somáticas (ECS) 4,49 x 2,93 (P < 0,0001) em relação as mestiças. Vacas mestiças Holandês x Simental obtiveram melhor ECC durante a lactação 3,65 x 2,94 (P < 0,0001) sem diferença para peso vivo em relação as vacas Holandês. Para crescimento de bezerras e novilhas não houve diferença entre os grupamentos genéticos. Vacas mestiças Holandês x Simental obtiveram melhor desempenho reprodutivo em relação as vacas puras, caracterizado através do menor IEP (381 x 445 dias), maior taxa de concepção (37,31 x 33, 64 %) bem como menor intervalo parto primeiro serviço (65,6 x 89,3 dias). Vacas mestiças Holandês x Simental apresentaram maior taxa de permanência no rebanho em relação as vacas puras (83 x 92 %). Conclui-se que vacas mestiças produzem mais leite, com maior teor de lactose e proteína, possuem menos ECS e maior ECC sem diferença para crescimento de novilhas e peso vivo na idade adulta. Apresentam ainda melhor desempenho reprodutivo e maior taxa de permanência no rebanho em relação as vacas puras Holandês
Cheng, Lee-Young, and 鄭立暘. "The Information Content of Cash Dividend,Tobin''s Q and Dividend Yeild." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/50944663976113638497.
Full textLin, Hsiu-Fen, and 林秀芬. "The Mechanism of Biological Control with Antagonistic Microorganism Bacillus subtilis and Development of High Yeild Fermentation Technique." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/60998292927584555309.
Full text國立屏東科技大學
生物資源研究所
100
Due to adverse effect of chemical pesticides on the environment and human health, development of the environmentally friendly and safe microbial pesticides has become an important issue. The purpose of this study was to develop the microbial pesticide Bacillus subtilis, into a commercial product for effective control of plant diseases. The antagonistic bacterium used in this study was isolated from the local soil in Taiwan. The identification of bacterial isolate was performed both by microbiological methods using Gram stain and Biolog system, and by molecular methods. According to these data, the isolate was identified as Bacillus subtilis. The effective BS-99-H strain was obtained by screening from the original culture using temperature treatment. B. subtilis BS-99-H produced a large amount of endospores compared with stock isolate. The dual culture tests showed that B. subtilis BS-99-H was strongly inhibiting to the mycelium growth of 12 genera and 26 species of fungal plant pathogens, especially the wax apple fruit rot pathogen of Pestalotiopsis eugeniae. The DNA of BS-99-H was extracted for identification of antibiotic compound producing genes. In the PCR reaction test, the amplification products with expected length of 1203 bp for ituD and 675 bp for lpa were detected, In suggesting that the iturin coding genes are present in the region specific for the primers used. When the extract of the BS-99-H fermentation broth medium was analyzed with HPLC and tandem mass spectrometry (MS/MS), iturin A was detected. The partially purified iturin A was found to cause electrolyte leakage of P. eugeniae mycelia. The leakage was increased 3.4 folds at 8 hours post treatment and reached maximum increase of 5.3 folds at 28 hours post treatment. Treatment with the BS-99-H iturin A also caused swelling and malformed shape of the hyphae of P. eugeniae. The IC50 value of iturin A from BS-99-H for conidial germination inhibition of P. eugeniae was 0.51 mg/mL. The conidial germination and mycelia growth were both completely inhibited by iturin A at ≥ 0.84 mg/mL. The results indicated that antibiotic iturin A produced by BS-99-H played an important role in the antagonism against P. eugeniae. A new liquid fermentation medium SYM-d was formulated to meet the purpose of high yield mass production. The substrate C/N ratio is high in SYM-d liquid medium. Under the shaking condition of 180 rpm, aeration rate of 0.82 liter/min and 3% bacterial inoculum, culture concentration of Bacillus subtilis BS-99-H reached 1010 cfu/mL or more at 28℃ in 2 days. The powder-formulated product of Bacillus subtilis BS-99-H had the bacterial concentration of 5 × 109 cfu/g. The product at 500X dilution effectively controlled wax apple and mango anthracnose and other diseases in the field tests. The method developed in this study greatly decreased the cost for mass production of BS-99-H and increased the performance of the product which is important in the commercialization of this product in the future.
Bedoshvili, David. "Possible compensations of the components of grain yeild in wheat (Triticum aestivum L.) as influenced by genotype by environment interactions." Thesis, 1999. http://hdl.handle.net/1957/33306.
Full textGraduation date: 2000
Hsieh, Yi-Ju, and 謝依如. "The performance of plant growth, seed yield and oil yeild in sun flower (Helianthus annuus L.) and jatropha ( Jatropha curcas L. )with various mycorrhizal inoculation and phosphorous fertilizer application." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/75553269848718887816.
Full text國立屏東科技大學
農園生產系所
98
Sun flower and jatropha are energy crops their seeds were inoculated with six species of vesicular-arbuscular mycorrhizal fungi (VAMF) :Glomus clarum (Gc), G. etunicatum (Ge), G. fasciculatum (Gf), G. mosseae (Gm), Gigaspora sp.(Gg) and Acaulospora sp. (Asp) to evaluate the effects on their growth, fertilizer saving, seed yield and oil yield. The most beneficial VAMF species was thus screened out. The results showed that the pot-grown sunflower recorded a mycorrhizal formation rate of 45~67% after 30 days. Applied with three phosphorous fertilizer levels for 50 days, the growth of Gf, Gm, and Ge inoculation were better than those in non-inculation. The plant growth, content of chlorophyll, soluble protein and soluble carbohydrate in mycorrhized plant were significantly better than those in the non-inoculated. The nitrogen, phosphorous, potassium, calcium and magnesium levels in the leaves of mycorrhized plants were higher than that of the control. For the field sunflower test, The mycorrhizal formation rate for sunflower was 10~60% after 30 days of inoculation. No matter full or half amount of phosphorous fertilizer was applied, the growth of those inoculated plants were better than that of non-inoculated after 35 days; The leaves content of chlorophyll in field sunflower plants was the highest when the plant was inoculated with Gc, Ge and Gf, while Gm inoculation gave better content of soluble protein and soluble carbohydrate. The nitrogen, phosphorous, potassium, calcium and magnesium levels in the leaves and seed yield and oil yield of mycorrhized plants were higher than that of the control. In pot trials, Gc、Ge species was screened out at first for their higher compactibity with jatropha plants. The mycorrhizal formation rate was 45~55% after 40 days of inoculation. In pot or field trials the inoculation treatment didn’t appear significant difference in plant growth. But the nitrogen, phosphorous, potassium, calcium and magnesium levels in the leaves of mycorrhized plants were higher than that of the control. The content of soluble protein in mycorrhized plants was higher than that of the control. Pot-grown jatropha inoculated with Ge resulted in higher content of carbohydrate in leaves; field-grown jatropha inoculated with Gc resulted in higher oil yield in seed.
VAFEK, Jan. "Vliv úrovně odchovu a věku při prvním otelení na výkonnost a dlouhověkost dojnic českého strakatého skotu." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-251797.
Full textKŮSOVÁ, Hedvika. "Vliv vybraných faktorů na užitkovost a dlouhověkost dojnic u stáda českého strakatého skotu." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-202606.
Full textMartins, Filipe Afonso Borges De Castro De Oliveira. "The predictive power of the yeld curve: the portuguese case." Master's thesis, 2020. http://hdl.handle.net/10362/108413.
Full textCusicanqui, Jorge. "Plant density, hybrid and cutting height influence corn silage yeld and quality." 1998. http://catalog.hathitrust.org/api/volumes/oclc/39542939.html.
Full textKusnírová, Nina. "Re-designing social impact bond "to strive, to seek, to find and not to yeld"." Master's thesis, 2020. http://hdl.handle.net/10362/107438.
Full textHoral, Maksym Stepanovych. "Corporate sector purchase programme - announcement and real effect on corporate yields." Master's thesis, 2017. http://hdl.handle.net/10362/25473.
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