Sintomas de deficiências de macronutrientes em pepineiro

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Aplicação de efluente de tratamento de esgoto, via aspersão, no solo e em Brachiaria

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Liming in Growing Mango Cultivar Keitt in Production

The tropical soil acidity is one of the main limiting factors for crop productivity. This study aimed to evaluate the effects of application of limestone dose to soil fertility, nutritional status of the crop, and productivity and quality of the fruits of mango, cultivar Keitt. The study was carried out at Selviria, state of Mato Grosso Sul, Brazil, in a Typic Haplustox (pH in CaCl2=4.7), cultivated with mango cultivar Keitt grafted on Coquinho pattern in the production phase (13years old). Treatments were composed of limestone doses (0, 1.55, 3.10, 4.65, and 6.20tha(-1)), arranged in blocks at random with three repetitions. The limestone was applied and incorporated in the surface layer of 0 to 5cm deep in the total area. We evaluated the chemical attributes of the soil [pH, hydrogen (H+) aluminum (Al), calcium (Ca), magnesium (Mg), potassium (K), and sum of bases and base saturation] at 16 and 28months after liming (layer 0 to 20cm deep), the nutrition of plants at 12months after liming, and quality of the fruit in two crop years. Liming promoted improvements in soil chemical attributes, reflected in the nutritional status, productivity, and quality of mango fruit. Also, there was a linear effect with the application of lime dose on the productivity of the fruit, but after the second year of evaluation.

Adubação nitrogenada e potássica em goiabeiras ‘paluma’: I. efeito na produtividade e na qualidade dos frutos para industrialização

The nutrition of the orchards is the major factor of productivity, being necessary to know the proper doses of fertilizers and their influence on fruit quality attributes for industrialization. This study evaluated the effects of different doses of nitrogen and potassium on the productivity of guava trees and also on the values of pH, soluble solids (SS), titratable acidity (TA) and pulp/kernel ratio of guavas. The experiment was conducted at Vista Alegre do Alto, SP in an irrigated 'Paluma'guava orchard, 7 years old, managed with pruning during three consecutive cycles of production. The soil of the area was dystrophic Ultisol. The experimental design was the randomized blocks, in factorial, with four nitrogen doses (0, 0.5, 1 and 2 kg of N plant(-1)) and four of potassium (0, 0.55, 1.1 and 2.2 kg of K2O plant(-1)), with three replications. Nitrogen fertilization increased productivity and the pH of the fruit, being explained by the quadratic polynomial regression models; reduced linearly the pulp/kernel ratio and do not influenced the SS and TA values. On the other hand, potassium fertilization and N x K interaction had no significant effects on productivity and the other characteristics evaluated.

Talent detection in taekwondo: which factors are associated with the longitudinal competitive success?

Background Several morphological and functional characteristics are associated with the performance of taekwondo (TKD) adult athletes. However, we did not find any longitudinal study associating these features to the future performance of young athletes, and thereby, identifying the best variables to use in a battery of tests to talent detection. Therefore, the aim of this study is answer the question which factors are associated with the longitudinal competitive success of TKD young athletes over five competitive years (2008 to 2012).Material &Methods: Six taekwondo athletes (13.06 +/- 1.07 years, 43.6 +/- 6.6 kg, 157.9 +/- 8.3 cm), who trained three to six hours per week, for more than three years, were assessed on 32 maturational indicators, of body composition, anthropometric and functional, using anthropometric techniques, dual energy x-ray absorptiometry, carpal radiography and contact platform. To determine the competitive ranking, the competitive results of athletes from 2008 to 2012 were analysed, and these values were correlated with the other 32 indicators for determining the Longitudinal Predictors of Performance in TKD (LPPT). Moreover, one of the athletes achieved results notably higher than the other, being medalled at Junior World Championships. Therefore, all variables were transformed into z-scores and all those in which this athlete presented superior performance in 1 z-scores were considered as LPPT. Results: The athlete of reference (the first in Longitudinal Competitive Ranking 2008-2012) distinguished, in accordance with the criteria, in nineteen LPPT indicators. The ranking was correlated with 6 LPPT parameters, including one from the maturation group of indicators and five from the functional group.Conclusion: Our results allowed us to identify several factors that are related to longitudinal competitive success in taekwondo young athletes. These factors should be considered by coaches to the proper selection of training programs, as well as for the pre-selection of young talents in competitive taekwondo. However, these results apply only to the Portuguese taekwondo adolescent athletes, being of limited generalizability.

Mananas e glucanas em dietas para leitões recém-desmamados

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fatores envolvidos no comportamento em higiene bucal e hábitos alimentares de crianças: revisão de literatura

The family is primarily responsible for shaping behavior in oral hygiene and nutrition of children, and cultural and psychosocial factors can influence this process. Thus, we carried out this study with the aim of presenting evidence from the literature on the subject. We reviewed the databases Bireme, Pubmed and Medline without restriction of year of publication. Used as descriptors "education," "care," "behavior," "oral health" and "food habits". We emphasize the responsibility of the family practices, values and beliefs of oral health and nutrition as well as the importance of shared care between family and professionals.

Indicadores biomecânicos do karate de alto nível

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

Autoeficácia como componente mediador de aprendizagem de elementos acrobáticos na ginástica para todos e na capoeira

The study addresses self-efficacy in learning acrobatic elements at Gymnastics for All and Brazilian Capoeira. The methodology consisted of descriptive-qualitative method of research. Questionnaires were applied to seven practitioners of modalities (04 capoeira fighters; 02 gymnastic athletes and 01 practitioner of both of them). The answer formed categories of analysis and it was found that sources of mastery and vicarious experiences plus verbal persuasion are relevant and influence the perception of performance. Fear of injury during practice and preparation of educational pre-sports activities to a better understanding of the task influence the choices and also were indicated. The coach needs to merge with playfulness and motivation, with appropriated levels of challenge to carry out the activities, thus optimizing satisfaction, participation and motivation of athletes.

Ocorrência de lesões de ligamentares e músculo tendíneas ao longo das fases do ciclo menstrual de atletas de alto redimento: um estudo de caso longitudinal

Female athletes are more susceptible to injury when compared with males. This increased risk of injury, may be caused by fertile-menstrual cycle. The aims of this study were to investigate the prevalence in the occurrence of muscle-tendon and ligament injuries in different phases of the menstrual cycle over a period of high performance sports training and identify possible differences of occurrences between the phases. Fifteen female athletes, members of a women's basketball team, with ages between 15 and 22 years (average 17.5 ± 2.6 years), with regular menstrual cycles and daily practitioners of training, received follow-up during the menstrual cycle for 5 months. During the period were noted occurrences of injury in relation to the menstrual period of each athlete. The results showed 13 injuries, all of anterior cruciate ligament. The distribution of percentage values indicated a significantly higher risk of athletes suffer injuries in the follicular phase. The result makes us believe that significant elevations in the concentrations of estrogen in this fertile menstrual cycle phase, more open women to a higher risk of performing different injuries.

Glifosato e manganês na cultura da soja transgênica: fisiologia e nutrição de planta, características agronômicas e análise econômica

Pós-graduação em Agronomia - FEIS

Estresse psicológico e desempenho de atletas juniores: uma análise documental

Soccer is one of the most practiced sports in the world, and for many years, some areas of physical education has been doing studies related to the improvement of their income from these areas if this sport psychology. The psychological aspects are very influential and involved in the daily life of an athlete, especially for basic categories of athletes who see in soccer a dream to come true or only a source of income for his family, where such aspects act beneficially or evil for the athlete. Stress, in particular, can appear in various situations and in various ways, and different influences and reactions athlete to athlete, also resulting in physiological changes and variations in performance. Stress, and especially stressful situations, like any psychological aspect should be identified in order to train your athlete to know how to deal with stressful situations. Know what are the stressors, which carries the stress load for the athlete, how to handle the stressful situations, using psychological training in the preseason, know how to use stress management techniques, and be able to manage it all so your athlete reaches an optimal level of income is described in the present work, in order to provide a theoretical and updated reference for professionals of Physical Education, so that they stay up to date on sports psychology and also understand a little more on this subject, which is still little discussed within soccer and often overlooked by many professionals who are already in the context of competitive soccer

Ultraestrutura e citoquímica do tubo digestivo de Hemisorubim platyrhynchos (Teleostei, Siluriformes, Pimelodidae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comprimento radicular e nutrição de cultivares de painço em resposta à calagem

Information on improved cultivars of fall panicum and cultural practices concerning its cultivation is scarce in Brazil. So, the objectives of this research work were to evaluate root length and the mineral nutrition of fall panicum plants as influenced by liming in an acidic soil. The experiment was conducted in vases containing 13 dm3 of soil under greenhouse conditions up to 44 days after seedling emergence. The experimental units were distributed inside the green house according to a completely random design in a 2 X 4 factorial scheme, that is, two fall panicum cultivars (‘AL Mogi’ and ‘AL Tibagi’) and four doses (0.0, 1.67, 2.91, and 4.15 t ha-1 ). The experimental units were replicated 4 times. ‘AL Tibagi’ plants root system showed more tolerance to soil conditions of low base saturation. That cultivar also absorbed more efficiently P, N, Ca, Mg, and K from the acidic soil. Liming brought about increments of P, N, Ca, Mg, and S absorption by the fall panicum cultivars.

Fibra, metabolismo ácido-básico e balanço de macroelementos em gatos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)