950 resultados para Periodicos portugueses


Relevância:

10.00% 10.00%

Publicador:

Resumo:

The objective of this work was to evaluate the influence of crescents phosphorus levels in two hybrids of forage sorghum cultivated on "Zona da Mata" region, State of Alagoas. The treatments were two hybrids of forage sorghum: BRS304 e BRS310, and four phosphorus levels: 0, 25, 50 e 75 kg ha(-1). The statistical design was the complete randomized block with four replications in a split plot scheme. Each experimental plot was constuited for five row of 4.5 m, spaced of 0.70 m. The soil of experimental area received lime to increase basis saturation to 60%. During the sowing, all experimental area received 100 and 120 kg ha(-1) of N and K, respectively. The plants were collected 40, 50, 60 e 70 days after emergence. The mass collected was separaeted in leaves photosynthetic active and remaining of the plant. When the grains were on the "farinaceo duro" stage, the yield was evaluated in 1.4 m(2) on plots center. The phosphoted fertilization increases linearly the sorghum production until 75 kg ha(-1) level of P. The phosphorus provides better grain participation on total dry matter of sorghum plants.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Many arthropods are mentioned with whitefly natural enemies, including the green lacewings. The aim of this study is to analyses the development and the capacity of predation of Chrysoperla externa (Hagen, 1861) fed with Bemisia tabaci B biotype nymphs, rearing different vegetables (kale, broccoli, eggplant end tomato). The duration, viability end weight in each stage end phase of development of the insect-predator had been evaluated, as well as the predatory capacity of the larvae in the third instar. The larval phase of the predator presented minor duration when these had been fed with nymphs developed the broccoli (12.36 days) and minor duration of the tomato (14.36 days) phase when fed with nymphs developed in kale, broccoli, and eggplant (6.50, 7.20, 7.33 days, respectively). The lower indices of viability been found for the larvae fed with nymphs developed in the tomato (30%), and average weights have. The predatory capacity of the larvae during the third instar was not affected, independently on the plant host where the whitefly nymph fed itself.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The objective of this work, the performance of three varieties of soybean on "Tabuleiros Costeiros" State of Alagoas. The installation of the experiment occurred on March 20, 2006, picking up the parcels on 26 August 2006. The experimental design was a randomized blocks with seven repetitions. The experimental plots consisted of ten rows of 4.0 m in length, spaced 0.50 m. In ten plants per plot were marked certain height of the plant in full bloom stage R2 and point of harvest stage R9 considering the distance between the soil surface and apical end of the main stem, the body weight of 100 seeds, grain production and dry weight in (kg ha(-1)) which are calculated from the production harvested per plot. The soybean plants of three varieties showed height below the minimum required for mechanical harvesting. The three varieties yield or more of the traditionally producing. The average of dry matter accumulation obtained show the variety BRS Tracaja as a good option for the production of forage.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The objective of this study was to evaluate the accumulation of matter, dry matter content of Brix and two varieties of sugar cane, influenced by the phosphorus cultivated on "Zona da Mata" region, State of Alagoas. The experiment, a factorial 2 x 6, was composed of two varieties of cane; RB867515 and RB92579 and six phosphorus levels: zero, 30, 60, 90, 120 and 150 kg ha(-1), with the source of the phosphorus triple superphosphate. Was also used nitrogen and potassium in doses equivalent to 100 and 200 kg ha(-1) and K, respectively. The soil of the experimental area was set to raise the base saturation to 60%. At the beginning of the first rainfall of the rainy season of 2006 was performed with micro fertilization in coverage, in doses equivalent to 6,0; 6,0 and 7,0 kg ha(-1) of Cu, Zn and Mn, respectively. Was The chemical control of weeds. Every month, from August to October 2006, samples were collected in the cane plant. There was initially the number of plants m(2), followed by weighing the material. It was subsequently withdrawn a subsample containing ten plants for weighing. After weighing the material was passed in horsemanship and homogenized, again drew up a sample of approximately 300g, leading them to forced ventilation oven at 65 degrees C, toobtain constant weight. Resulting in the production of natural (MN) and dry matter (DM). In July, we analyzed the levels of Brix% juice in the refractometer Brix. The average values of production of natural (MN), dry matter (DM) and contents of Brix% were subjected to analysis of variance and regression for variables. The accumulation of dry matter and were influenced by fertilization. The contents of Brix% in two varieties did not suffer significant influence of fertilization.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The objective of this study was to evaluate the control of mound-building termites (Isoptera: Termitidae) by entomopathogenic fungi (Metarhizium anisopliae and Beauveria bassiana). We developed two experiments, with two copies of application in three sizes of nests. The first was installed in the Salto Macauba farm and second in the Laboratory of Plant Protection at the State University of Mato Grosso do Sul. The first experiment consisted of five repetitions, each nest an experimental unit, with treatments in a factorial 2 (fungi) x 2 (tests) x 2 (type of spraying) + 1 control, distributed completely at random in the area. The treatments were: 1) control - no implementation, 2) Metarril M103 (M. anisopliae) - 10 g/mound-dusting, 3) Metarril M103 - 10 g/mound - via net, 4) Metarril M103 - 15 g/mound-dusting, 5) Metarril M103 - 15 g/mound - via net, 6) Boveril B102 (B. bassiana) - 10 g/mound - dusting, 7) Boveril B102 - 10 g/mound - via net, 8) Boveril B102 - 15 g/mound-dusting and 9) Boveril B102 - 15 g/mound-via net. The testing of mortality were made spraying of the laboratory with the field measurements performed in compliance with the same separation of the nests. The results suggested that the road dust (dosage of 10 g) of the fungi studied showed higher mortality of nests of small size (53%). B. bassiana (Boveril) (10 g) gave 80% mortality of C. cumulans when applied to nests of small size.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Forage plants cultivated in consortium with crop corn, facilitating the weed control in farming and cattle raising ecosystem, interfering not only in your biological productivity, like in your potential of distribution and infestation in area. This experiment was realized with the aim to evaluate the weed suppress by Brachiaria decumbens in intercropping with corn (Zea mays L.). The even was composed by combination of four forage plant density (0, 10, 15 and 20 kg ha(-1)) and three weed species (Ipomoea grandifolia, Digitaria horizontalis and Cenchrus echinatus), planted intercropping with corn. It was constated that B. decumbens was efficient in weed infestation suppress, being the most effective control for D. horizontalis. The leaf area and dry phytomass of weeds were affected (P<0.05) by forage plant presence, with variation between the density curve of Brachiaria only for weed D. horizontalis and I. grandifolia.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O estudo aqui proposto centrar-se-á nas imagens do Brasil expressas por manuais didáticos, por periódicos e por intelectuais portugueses do século XIX. Pretende-se, a partir de tal documentação, reconstituir alguma atmosfera mental que circundava as idéias de Brasil e a percepção da nação portuguesa sobre o tema do Brasil, da emigração e dos brasileiros. Mediante tal enfoque, entendemos ser possível tanto compreender as identidades que configuravam uma dada mitologia cultural quanto a demarcação de distâncias e diferenças.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This research was supported theory as the theory of Henri Wallon which proposes a reflection on the overall development of the child offering subsidies for a acting that values the child in its multiple dimensions. The objective is understood to seek subsidies in theory that can guide the construction of an education in the Children's activites, focused on the development aspects of cognitive, affective and motor of the child. It adopts as methodology the bibliographical revision, the intervention, observation and data collect, using as pedagogic resource playing activities in an institution of Infantile Education. The research noted the possibility of action with the concepts proposed by the Wallonian theory, furthermore, the Children's Fitness, using the recreational activities such as teaching resources boost child development. Therefore, concluded that physical education should include Child in the process of teaching-learning the full development of the child.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Background: A better physical fitness may have survival advantages in adults. Aim: To analyze the relationship between cardiorespiratory fitness and cardiovascular risk factors among obese subjects aged 58 years and older. Material and Methods: Cardiorespiratory fitness using the six-minute walk test, body composition by dual-energy x-ray absorptiometry and blood pressure were measured in a non-representative sample of 76 obese Portuguese subjects aged 58 to 87 years (55 women). Participants were stratified in tertiles of walking capacity according to the six-minute walk test. Results: Six minutes walk test results were negatively correlated with percentage body fat (r = -0.28; p = 0.012) and systolic blood pressure (r = -0.23; p = 0.045). Participants located in the lowest tertile for the six minutes walk test had an odds ratio of 4.34 (95% confidence intervals: 1.02-18.43) for elevated blood pressure. Conclusions: A lower six minutes walk test result is associated with a higher risk for high blood pressure. (Rev Med Chile 2012; 140: 1164-1169).

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This article presents a theoretical search and aims to introduce the main categories of historical-cultural theory and discuss its implications for the physical education teacher's work inside the school and also emphasizes this theory and its methodological proposal as an important way to build the scholar physical education in a critical perspective aiming to change the school and the students conscious and personality. The Vigotskian school of human development it is taken as an important reference to understand the scholars in their vital process of development and helps the teachers in general, and physical education teachers in specific, to consider the activity ( vital activity) as important instrument to get the humanization and liberty of human being, inside the school and inside the contemporary society.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This article explains Alegria Project (Happiness Project) carried by State University Paulista in the Technology and Science Faculty (FCT/UNESP). The aim was to show many positives aspects of Circus art to public school students in Presidente Prudente city. The first part is the characterization and issues of Alegria Project. The second part is dedicated to define a theoretical and practical basis of circus art proposal at public school linked to physical education. Finally, there are a description of main aims and results obtained and conclusion of Alegria Project.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The aim of this study was to analyze the association between nutritional status and blood pressure in adolescents from a private school. Were recruited 316 young of both gender with age raging from 11 to 15 years old. Were measured body mass, stature, systolic blood pressure and diastolic blood pressure. The statistic procedures were composed by median, interquartile range, chi-square test and Poisson regression. The prevalence of overweight and high blood pressure was significantly higher in boys (38% and 24%, respectively) when compared to girls (19.3% and 14.4%, respectively). Overweight adolescents presented a higher risk (about 2-fold) to develop high blood pressure. In conclusion, overweight seems to be associate with high blood pressure in adolescents.