Citrus breeding program at Embrapa Cassava & Fruits: development of hybrids.

Hybridizations and selection of promising individuals; Identification of hybrids: embryos and seedlings; Cultivation of embryos; Early selection of genotypes resistant to Phytophthora root rot; Reaction of hybrids to the citrus tristeza virus; Induction of flowering; Somatic hybridization by protopast fusion.bitstream/item/143115/1/Citrus-Breeding-Program-Doc-107-2003.pd

Programa de melhoramento genético de citros da Embrapa Mandioca e Fruticultura: obtenção de híbridos.

Hibridação e seleção de indivíduos promissores; Identificação de embriões/seedlings híbridos; Cultivo de embriões; Seleção precoce de genótipos tolerantes ao alumínio e à seca; Seleção de genótipos resistentes à gomose de (Phytophthora spp.); Reação de híbridos ao complexo do vírus da tristeza dos citros; Indução de florescimento; Hibridação somática via fusão de protoplastos.bitstream/item/143116/1/Programa-de-melhoramento-genetico-de-citros-da-Doc-106-2003-1.pd

L'effet du climat viticole sur la typicité des vins blancs: caractérisation au niveau des régions viticoles ibéro-américaines.

There are many studies in the world that characterize the effect of the climate on grape composition and wine characteristics and typicity concerning different viticultural regions. However, the same is not true concerning studies in a worldwide scale to characterize this effect considering different climate types. This study is part of a CYTED (Ibero-American Program for Science, Technology and Development) project in vitivinicultural zoning. The objective was to characterize the effect of the viticultural climate on white wine typicity on the macro Ibero-American viticultural region. The methodology used 46 grape-growing regions in 6 Ibero-American countries: Argentina, Bolivia, Brazil, Chile, Portugal and Spain. The viticultural climate of each region was characterized by the 3 viticultural climate index of the Geoviticulture MCC System (1): HI (Heliothermal index), CI (Cool night index) and DI (Dryness index). The main sensory characteristics observed frequently in representative white wines produced with grapes of each of these 46 grape-growing regions were described by enologists in the respective countries, using the methodology of Zanus & Tonietto (2). The sensory description concerned the intensity of perception of Color (Cou), Aroma - Intensity (Ar), Aroma - Ripe Fruit (Ar-Fm), Body ? Palate Concentration (Con), Alcohol (Al) and Acidity (Ac). The Persistence in Mouth (Per) was also evaluated. The data were submitted to a correlation analysis of the variables and to a Principal Component Analysis (PCA). The results showed that the typicity of the white wines was correlated with the viticultural climate indexes HI, CI and DI from MCC System. The main wine sensory variables affected by viticultural climate are identified

Efecto del Fibrozyme® en la degradabilidad y la cinética de degradación de la paja de garbanzo (Cicer arietinum)

Se realizó un experimento con la finalidad de estudiar un complejo de enzimas fibrolíticas exógenas (Fibrozyme®) sobre los parámetros de degradabilidad ruminal in situ y la cinética de degradación de la materia seca (MS) de la paja de garbanzo (Cicer arietinum). Se utilizaron dos toros suizos (700 kg PV) con cánula ruminal, en un diseño de bloques al azar, donde cada animal constituyó un bloque. Se evaluaron tres niveles de enzima (0, 1 y 2 g Fibrozyme® kg forraje−1 MS). Se colocaron bolsas nailon a cinco tiempos de incubación (6, 12, 24, 48 y 72 h). Los resultados demuestran que la inclusión de 2 g Fibrozyme® kg-1 MS mejora la digestibilidad in situ de la materia seca en paja de garbanzo (P<0.05) para todas las horas incubadas, así como los parámetros de la cinética de degradación. Se concluye que el Fibrozyme® evaluado en una dosis de 2 g kg-1 forraje MS mejoró la cinética de degradación y la degradabilidad ruminal in situ de la MS del esquilmo agrícola evaluado

The Effect of Viticultural Climate on Red and White Wine Typicity - Characterization in Ibero-American grape-growing regions

Aim: This study is part of a CYTED (Ibero-American Program for Science, Technology and Development) project on vitivinicultural zoning. The objective was to characterize the effect of viticultural climate on red and white wine typicity in the macro Ibero-American viticultural region. Methods and results: The climate of 46 grape-growing regions in 6 Ibero-American countries (Argentina, Bolivia, Brazil, Chile, Spain and Portugal) was characterized using the three viticultural climate index of the Geoviticulture MCC System: the Heliothermal index HI, the Cool Night index CI and the Dryness index DI. The main sensory characteristics frequently observed in representative red and white wines of each of these regions were described by enology experts in the respective countries: intensity of colour, aroma, aroma-ripe fruit, body-palate concentration, alcohol, tannins (for red wines) and acidity as well as persistence on the palate. The data were submitted to a correlation analysis of the variables and Principal Component Analysis (PCA). Conclusion: The typicity of red and white wines was correlated with the HI, CI and DI viticultural climate indexes from the MCC System. The main wine sensory variables affected by viticultural climate were identified. Significance and impact of the study : The results can be used to project the potential impacts of climate change on wine sensory characteristics

Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range $|\eta| < 0.8$ are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286

Search for Neutral Higgs Bosons in Events with Multiple Bottom Quarks at the Tevatron

The combination of searches performed by the CDF and D0 collaborations at the Fermilab Tevatron Collider for neutral Higgs bosons produced in association with b quarks is reported. The data, corresponding to 2.6 fb-1 of integrated luminosity at CDF and 5.2 fb-1 at D0, have been collected in final states containing three or more b jets. Upper limits are set on the cross section multiplied by the branching ratio varying between 44 pb and 0.7 pb in the Higgs boson mass range 90 to 300 GeV, assuming production of a narrow scalar boson. Significant enhancements to the production of Higgs bosons can be found in theories beyond the standard model, for example in supersymmetry. The results are interpreted as upper limits in the parameter space of the minimal supersymmetric standard model in a benchmark scenario favoring this decay mode.Comment: 10 pages, 2 figure