Adubação potássica na produção e qualidade pós-colheita do rabanete

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Doses e modos de aplicação de boro na produção de mudas de nespereira

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Reguladores de crescimento no desenvolvimento de diferentes espécies de grama

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ação do ácido abscísico na cor das bagas, na qualidade e no armazenamento pós-colheita da uva Rubi

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Eficiência de uso de fósforo por dois genótipos de cana-de-açúcar cultivados em solução nutritiva

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Kasabach-Merritt syndrome: clinical vs. surgical treatment

Kassabach-Merritt syndrome is a combination of capillary hemangioma and thrombocytopenia that predisposes to bleeding with petechiae, ecchymosis and spontaneous bruising. Treatment is generally started with corticosteroids, interferon alpha or chemotherapy. We present the case of a child (aged 1 year and 9 months) with a giant hemangioma, from the root of the thigh to the knee, and thrombocytopenia. Treatment was started with corticosteroids, without improvement, and then intra-tumor and cutaneous bleeding appeared spontaneously. The patient’s clinical condition precluded prescription of vincristine and interferon and emergency tumor resection was conducted because of extreme thrombocytopenia and bleeding. The child then began to develop sepsis with hypotension and ischemia of remnant tissues. This case presented a therapeutic challenge, which is the subject of this article.

Crescimento inicial de mudas de maracujazeiro amarelo em função de doses crescentes de superfosfato simples

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito de dois sistemas de manejo do solo nas propriedades físico-hídricas, desenvolvimento radicular e produtividade do milho

Corn cultivation is part of crop rotation used by irrigation farmers from the southwestern region of São Paulo state, Brazil, who use no-tillage soil management as a kind of sustainable use of soil. The effect of this conservative practice on physical and hydrical properties of the soil, root development and corn crop yield compared to the conventional management was the objective of this work. The experiment was held at the Buriti-Mirim Farm, Angatuba, SP, Brazil, using an irrigated area with a center pivot system and two types of soil management: conventional and no-tillage systems. Although the no-tillage management had higher soil density and less water availability, no significant difference was found for both management systems concerning soil resistance to penetration, root development and crop yield. In both systems of soil management, 90% of roots were concentrated in the first 0-20cm of soil layer.

Produção da cultura da beterraba irrigada com água salina.,

The use of low quality water for agriculture should be performed with care to avoiding excessive accumulation of salts in the soil so not to harm crop development. In order to evaluate the performance of beets under the infl uence of low water quality, an experiment was conducted in a greenhouse of the Department of Agricultural Engineering, Universidade Estadual Paulista in Botucatu, Brazil, from April to July 2012. We used the beet (Beta vulgaris L.) in a completely randomized design with 6 treatments and 5 replications, totaling 30 plots. Treatments consisted of NaCl solutions at different concentrations (2.0, 3.0, 4.0, 5.0 and 6.0 dS m-1) plus a control treatment corresponding to water with no additional salt and electrical conductivity of roughly 0.26 dS m-1. Variables evaluated were total production, commercial production, plant height, number of plants and root diameter. Production of the beet crop was affected by the increasing salinity of irrigation water, characterized by reduced root production of the beets. Total and commercial production showed reductions of 8.82 and 12.2% in accordance with the unit increase of salinity.

Avaliação de sistemas de manejo de palhiço de cana-de-açúcar no campo e na indústria

This work presents and it evaluates the systems of crop of sugar-cane trash for energy ends, through studies accomplished in three industries of sugar and alcohol, of the State of São Paulo, as withdrawal in the field and crop partially integral with separation of the trash in the industry (cleaning the dry). it is Treated of a development of opportunities, because only when there is pulp shortage it is that remembers the energy use of the trash, which presents a larger cost for equivalent ton in energy again that the pulp of the sugar-cane, that already has a very spread trade in the section the sugar and alcohol. Another factor that should be outstanding is the environmental, because the Environmental Protocol exists, sanctioned by most of the producing of sugar-cane, that reduces the period for elimination burned of the sugar-cane before the crop implanted by the Law 11.241 of 2002. However it is important to highlight that the crop of the sugar-cane without it burns her previous, it increases the difficulty in the combat the pest denominated “cigarrinha-da-raiz”, turning necessary the retreat of part of the trash non beneficial for the soil, contributing like this, with the practice of removal of the trash for energy use. Of the obtained results it is ended that the most interesting modality economically, was the separation of the trash in the industry and that for better efficiency, the sugar-cane should go by a double process of blowing for cleaning, pointing out, however, that there was reduction of the capacity of transport of the sugar-cane as adult was the amount of trash partially in the crop integral.

Estimativas da radiação difusa horária incidente em superfícies inclinadas com base na transmissividade atmosférica

Evaluated statistical equations estimates (based on radiometric fractions) of the hourly diffuse radiation incident on inclined surfaces for the North to 12.85, 22.85 and 32.85°, the climate and geographical conditions of Botucatu, SP. The database was generated from April/1998 to December/2007, with measures in the three tilted surfaces in different periods, but concomitant to the horizontal plane. In the validation of the equations were used indicative statistics MBE (mean absolute error), RMSE (square root mean square error) and index adjustment (d) for three inclinations and conditions of sky coverage. The increased angle of inclination of the surface led to increased scattering of hourly values for the coefficient of atmospheric transmissivity of diffuse radiation for inclined and horizontal surfaces. Estimates of diffuse radiation on the basis of hourly tilted horizontal global radiation occur for quadratic polynomial models, which adjust K'Dβ maximum values of between 0.14 and 0.30 for winter and summer when KTH varies between 0.40 and 0.66, indicating that energy, the highest values of diffuse radiation occur in partly cloudy sky conditions and / or partially open. The increase in atmospheric transmissivity decreases the performance of annual and monthly equations at all inclinations.

Desenvolvimento radicular de híbridos de mamona submetidos à adubação potássica

A deficiency of potassium at the beginning of the season affects the nutritional balance implicating the proper development of plants. The objective of this study was to evaluate the effect of potassium (K) in the root system development and production of dry matter of shoots of hybrid castor. The experiment was a 5 x 2 factorial scheme in a completely randomized design with four replications. The treatments consisted of five doses of K: 0, 25, 50, 100 and 200 ppm and two hybrids of castor (Lyra and Savana). After 45 days after emergence, there was a collection of shoot and root system of plants. The evaluations were: length, area, diameter and dry root and shoot. The addition of potassium caused increased root diameter at the hybrid Savana and reduced at the Lyra. The production of root and shoot dry of the hybrid Savana decreased with doses from 78 and 116 ppm of potassium, respectively.

Sistema radicular de cultivares de painço em resposta à calagem

The root growth is genetically controlled. There is variability among cultivars and soil factors such as toxicant Al and low contents of Ca and Mg can harm it. The objective of this study was to evaluate the root growth and the shoot growth of millet cultivars in response to liming. The experiment was carried out in pots with 13 dm3 of soil, in greenhouse conditions until 62 days after the emergence of the plants. The used experimental design was completely randomized, in a 2x4 factorial scheme, that is to say,two painço cultivars (AL Mogi e AL Tibagi), and four level of calcareous (0,0; 0,83, 1,67 e 3,34 g dm-3 ), with four replications. Liming promotes increase of the root system and of the aerial parts of the cultivars. The AL Tibagi cultivar presents a root system more tolerant to the low saturation by bases in comparison to the AL Mogi, however, the maximum root growth was occurred in saturations at around 64%. Millet cultivars in high acidity conditions reduce root diameter at the expense of the growth in length.

Superação de dormência em sementes de messlina (Melissa officinalis L.)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Caracterização biométrica e superação de dormência em sementes de Chloroleucon foliolosum (Benth.) G. P. Lewis

The objectives of this work were performing the biometric characterization of seed Chloroleucon foliosolum (Benth) G. P. (Lewis) from the municipality Ituaçu - BA, and analyze methods of scarification and temperature on germination. The seeds were characterized according to measurements of length, width and thickness, weight of thousand seeds, and water content. Were employed methods of scarification with sandpaper and sulfuric acid for 15 and 30 minutes, and not scarified seeds, combined with germination temperatures of 20, 25, 30 and 35 °C. Percentage and germination speed index, and percentage of primary root protrusion, abnormal seedlings, hard seeds and dead seeds were evaluated. The means of length, width and thickness was 6.03, 4.30 and 3.47 mm, respectively. The weight of a thousand seeds was 67.3 g with water content of 6.1%. Whereas the percentage germination with normal seedling, the method of scarification with sulfuric acid for 15 or 30 minutes combined to germination temperatures of 25 or 30 °C were effective in overcoming dormancy of Chloroleucon foliolosum.