128 research outputs found

    Soybean Breeding Aiming at increasing Productivity and Root-Knot Nematode Resistance

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    In Brazil, the root-knot nematode (Pratylenchus brachyurus) has gained importance, whatever because of the damage caused to soybean crops or because of its broad dispersion and incidences in producing areas. Therefore, this invention aimed at developing a new cultivar resistant to the major soybean diseases as well as to the root-knot nematode. As a result, we developed a soybean cultivar designated UFUS 8301. Generations were advanced by the single seed descent method. Value for Cultivation and Use assays were carried out during a 3-year period (2010/13). Distinctness, uniformity, and stability experiments were carried out during a 2-year period (2011/13). We used the reproduction factor (RF) statistics to assess damage and reproductive potentials of P. Brachyurus; analysis of variance tested differences between means. We accepted the null hypothesis there was no difference between UFUS 8301 and the parameter of resistance Crotalaria spectabilis. UFUS 8301 was found distinct from any other cultivar, homogeneous to the descriptors that had identified it and stable through generations. UFUS 8301 presented 19% oil and 39% protein on the seeds, and yield (3687.5 kg ha-1) above Brazilian national average

    Estratégias de talentos humanos para a gestão da competência "inovação": um estudo de caso na Engeset

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O principal propósito deste trabalho é apresentar uma análise das estratégias definidas pela Área de Talentos Humanos da Engeset, identificando sua contribuição efetiva na dimensão humana da empresa, especificamente na valorização da gestão da competência "inovação". O estudo de caso foi desenvolvido na Engeset, empresa do Grupo Algar. A pesquisa foi direcionada para a análise das estratégias de TH, as sete competências básicas adotadas pelo referido grupo e outras. Os resultados obtidos permitiram identificar, sob a percepção da população pesquisada que as estratégias de TH e as 7 sete competências da Engeset são aprovadas pelos associados da empresa e que a união dessas estratégias e competências são relevantes para o sucesso do Grupo. A Engeset oferece oportunidades significativas para se trabalhar a criatividade, influenciando a "inovação", pois a empresa oferece o Programa de Gestão de Idéias (PGI) e o Programa de Gestão de Processos (PGP) e a sala de Criatividade, citada por 90% dos participantes como importante estratégia para se chegar à competência "inovação". Os resultados da pesquisa deixam claro a influência da competência "inovação" nos resultados da empresa, pois há a predisposição dos associados em adotar novas formas de resolver e medir serviços, ações e capacidade de adaptação às inovações, o que ficou claro na grande mudança sofrida pela empresa no último ano, quando diante de uma crise de desaquecimento do setor de construção de redes de telecomunicações, soube redirecionar as estratégias, adequando-as à nova realidade mercadológica. The main purpose of the present work is to show the results of a case study which was carried out in a company called Engeset, which belongs to a larger group called "Grupo Algar", in the city of Uberlândia, MG. The main objective of the study was to investigate the strategies that have been defined and established by the Personnel Department, now called Department of "TH Strategies" ("Human Talents Strategies"). More specifically, the investigation aimed at analyzing the seven basic competencies adopted and required by the company. The study also focused on the identification of the effective contributions of these strategies, as far as the dimension of the human relations within the company is concerned, with special attention to the valorization of the development of the competence of "innovation". Results, in a general sense show that TH strategies and also the seven basic competencies required by the company are not only accepted by the associates of the Group, but also extremely important for the success of the Group. By working with "Programa de Gestão de Idéias - PGI" ("Program for the Generation of Ideas"), and with the "Programa de Gestão de Processos - PGP" ("Program for the Generation of Processes") and the "creativity Room", the company investigated offers significant opportunities for its employees to develop their creativity, and this seems to influence the use of the strategy of "innovation". This was mentioned by 90% of the informants. Results also made clear the influence of the competence "innovation" in the ultimate results of the company. This is due to the fact that there seems to be a clear tendency among associates to adopt new forms of salving problems and of assessing actions, services, and the capacity of employees to adapt themselves to changes and innovations. This was clear when the company faced a deceleration in the field of telecommunications, and could, nevertheless strategies, making it suitable for the new configurations of the market

    UFUS Riqueza: a new soybean cultivar for the state of Minas Gerais.

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    The release of cultivars has ensured higher yield associated with increased tolerance to climatic adversity. ‘UFUSRiqueza’ is resistant to natural dehiscence and to the diseases: bacterial pustule, downy mildew, frogeye leaf spot, brown stem rot,stem canker and stem necrosis and can reach yields of 3475 kg ha-1, with grain contents of 18 % oil and 39 % protein

    Evaluation of Biocompatible Films Using Copolymers of N-Vinylbenzamide with Cationic Moieties by Hydrolysis of N-Vinylformamide

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    Biocompatible materials using poly(N-vinylamide) derivatives were developed via a recently designed synthetic route. N-Vinylbenzamide (NVB) was synthesized as typical hydrophilic N-vinylamide monomer, then copolymerized with N-vinylformamide (NVF) by free radical polymerization, which can convert to cationic polyvinylamine unit by hydrolysis. Cell toxicity on the surface of copolymer films was investigated, revealing that poly(N-vinylamide) derivatives showed biocompatibility regardless of the cationic ratio

    UFUS-Imperial: new soybean cultivar for the State of Mato Grosso, Brazil

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    A fim de ampliar as opções ao cultivo da soja, a Universidade Federal de Uberlândia lançou a cultivar UFUS-Imperial, proveniente do cruzamento entre (Msoy 8411xMsoy 8914) x (Emgopa 313xTucano). A cultivar apresentou resistência ao acamamento, à deiscência da vagem e aos patógenos: Fusarium solani, Cercospora sojina, Peronospora manshurica, Xanthomonas campestris pv. glycines e Diaporthe phaseolorum f.sp. meridionalis, e resistência parcial a Septoria glycines, Erysiphe diffusa e Phakopsora pachyrhizi. O rendimento dessa cultivar, em ensaios regionais, foi 45% superior ao da testemunha Msoy 6101, e é indicada para o Estado de Mato Grosso.With the purpose of offering new options for soybean production, the Universidade Federal de Uberlândia released the cultivar UFUS-Imperial, originated from the crosses between (Msoy 8411xMsoy 8914) x (Emgopa 313xTucano). It showed resistance to lodging, to pod shattering, and to the pathogens Fusarium solani, Cercospora sojina, Peronospora manshurica, Xanthomonas campestris pv. glycines and Diaporthe phaseolorum f.sp. meridionalis, and partial resistance to Septoria glycines, Erysiphe diffusa, and Phakopsora pachyrhizi. Its average yield from uniform trials was 45% higher than that of the control Msoy 6101, and it is indicated for cultivation in the State of Mato Grosso

    Harvesting delay in physiological quality of soy seeds

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    Soybeans are a grain-producing species of high international demand and occupy a prominent position in the Brazilian economy. The success of this crop in Brazil is due to public and private investments in production technologies and to breeding programs. It is through the seed that the genetic advances reach the producer. In this context, the success of a cultivar and high productivity depend on the quality of the seed. In view of the above, the objectives of the study were to evaluate the physiological quality of soybean cultivar seeds at different harvesting times. The experiment was conducted in an experimental area located at Fazenda Capim Branco, belonging to the Federal University of Uberlândia, in the 2016/2017 harvest. Ten soybean cultivars were evaluated (CD 2737 RR, UFUS 7415, UFUS 7910, UFUS Milionária, UFUS 7801, NA 5909 RG, UFUS 8301, TMG 7062 IPRO, UFUS Xavante and UFUS 6901) at four harvest times (R7, R8, R8+15, R8+30), constituting a 10 x 4 factorial. The experiment was carried out in a randomized complete block design with four replicates. For the evaluation of the physiological quality, germination, electrical conductivity and fresh matter and dry matter of seedlings tests were performed. In all tests the physiological quality of the seeds decreased with the harvest delay. Emphasis was placed on the cultivar NA 5909 RG, which showed the best means to delay the harvest in 15 and 30 days

    Adaptability and stability of soybean cultivars in four sowing seasons

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    In recent decades, the expansion of soybean production in Brazil has been observed. This advance was motivated by the search of environments with better cultivation conditions, as well as the development of genotypes with wide adaptation. The diversity of "environments" hinders the process of selection and recommendation of cultivars, since the productive potential of a cultivar is given as a function of the sum of the genotype effect, the environment and the interaction between the latter two (G x E). In the case of this G x E interaction, regional studies are necessary in order to detail the differential behavior of the cultivars. Thus, the objective of this work was to evaluate the genotype interaction by environments, adaptability and phenotypic stability for grain yield, of fifteen soybean cultivars, in four sowing seasons, in order to identify cultivars that combine high productive potential, predictability of behavior and adaptation to the edaphoclimatic conditions of Uberlândia-MG. The trials were conducted at the Experimental Farm Capim Branco, in Uberlândia-MG. Fifteen soybean cultivars were evaluated in four sowing seasons (October 23, 2016, November 19, 2016, December 10, 2016 and January 14, 2017), in relation to grain yield. The experimental design was of randomized complete blocks, with three replications, in each season. Data were submitted to individual and joint analyzes. The G x E interaction was decomposed by the method proposed by Cruz and Castoldi (1991). The differential behavior of the genotypes was detailed by the adaptability and phenotypic stability by the methods of Eberhart and Russell (1966), Lin and Binns (1988) modified by Carneiro (1998), AMMI and Centroid. By the analysis of joint variance, it was observed the existence of the cultivar interaction by sowing times (C x E), for the grain yield trait, at the 5 % probability level by the F test. The C x E was predominantly complex in nature. The cultivar CD 2737 RR presented satisfactory results for the four sowing seasons in Uberlândia-MG, with high grain yield and predictability of behavior, by the evaluated methods. The cultivar NS 6909 IPRO was classified into favorable environments by the methods of Eberhart and Russell (1966) and Lin and Binns (1988) modified by Carneiro (1998). Considering Lin and Binns (1988) modified by Carneiro (1998) and Centroid the cultivar that is also classified for this cultivation condition is UFUS 8301. By AMMI, UFUS 7415, CD 2737 RR and UFUS Milionária are considered stable and adaptable

    Effect of sowing season on soybean performance

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    The soybean presents great economic expression and high impact in the Brazilian agribusiness. The productive potential of a cultivar is expressed according to the genetic constitution and the environment. The sowing time exerts influence on the agronomic traits of the soybean, impacting the yield of grains. The objective of this study was to evaluate the influence of the sowing season on the productive potential and the agronomic traits of soybean. The work was conducted at the Capim Branco experimental farm, belonging to the Federal University of Uberlândia. Twelve cultivars (UFUS 6901, UFUS 7415, BRSMG 68, TMG 801, TMG 7062 IPRO, TMG 2158 IPRO, BRS 7270 IPRO, NA 5909 RR, NS 6909 RR, CD 2737 RR, P98Y30 RR e BRASMAX Desafio RR) and four sowing seasons (October 22, November 5, December 22, 2016 and January 5, 2017) were used. The experimental design was a randomized block design with four replicates. The evaluated characters were: number of days for flowering and maturity, plant height at maturity, insertion height for the first pod, number of nodes at maturity, total number of pods, number of tainted pods and productivity. The sowing carried out in October and November contributed to obtain a larger number of nodes and a greater height of plants at maturity, which are agronomic traits favorable to higher productivity. Sowing delay seriously affected soybean yield and in the Uberlândia MG region the ideal sowing time was October 22, before the beginning of November. In the late sowing in December and January, the cultivars that had their productions less affected were the conventional cultivars BRSMG 68 and TMG 801
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