Quality Of Strawberry Grown In Brazilian Tropical Humid Conditions For Breeding Programs

Introduction. The preliminary study of the post-harvest quality of the fruit from strawberry cultivars in a new growing region is necessary for both farmers and consumers. The objective of the present study was to evaluate strawberry cultivars at different harvest times with regard to fruit quality aiming at the selection of possible parents for breeding programs for cultivation in the tropical humid conditions of the city Datas, in Minas Gerais State (Brazil), and in other regions with similar soil-climatic conditions. Materials and methods. The strawberry fields were cultivated on the Mape Frutas Farm, located in the city of Datas-MG. Eight cultivars ('Aromas', 'Camarosa', 'Campinas', 'Diamante', 'Dover', 'Festival', 'Oso Grande', and 'Toyonoka') were assessed in a randomized block design with a split-plot in time. Four replicates and three harvest times (June, August, and October 2012) were evaluated. Fruit from the different cultivars were analyzed for their physicochemical and antioxidant properties. Results and discussion. There was a genetic variability and the predominance of genetic factors over environmental effects for the evaluated traits. Fruits harvested at the end of the crop cycle (October) had the highest levels of total reducing sugars, vitamin C, phenols, anthocyanins, carotenoids, soluble solids, and total antioxidant activity. Cultivars Camarosa, Festival, and Toyonoka showed better fruit quality. Conclusion. Based on the genetic dissimilarity and fruit quality, the cross between 'Toyonoka' and 'Camarosa' or 'Festival' is indicated for the genetic improvement of strawberry in the region and other places with similar soil-climatic conditions. © Cirad/EDP Sciences 2016.71315116

Conservação Pós-colheita De Frutos De Morangueiro Em Diferentes Condições De Armazenamento

Strawberry is a product appreciated by consumers due to the organoleptic characteristics. However, strawberry fruits are highly perishable after harvest, so alternative measures to prolong the shelf life of fruits are necessary. The objective of this experiment was to evaluate the fruit postharvest conservation of strawberry cultivars under different storage conditions. Strawberry fruits of eight cultivars (Festival, Campinas, Toyonoka, Dover, Oso Grande, Camarosa, Diamante and Aromas) were grown at “Mape Frutas” farm, in Datas municipality, Minas Gerais State, Brazil. Strawberry fruits were stored at cold storage (2.34±0.78°C; 89.93±4.14% RH) and environmental conditions (17.43±2.68°C; 74.11±10.44%). The experimental design was randomized blocks in a factorial arrangement with eight strawberry cultivars and five storage times, with three replications. Fruits appearance, disease incidence, total soluble solids, titratable acidity, vitamin C and firmness were evaluated every 3 days, until 12 days. At room condition, strawberry fruit could be stored for only three days. Fruits kept in cold chamber kept quality until 12 days. Cv. Festival had the best postharvest shelf life in both storage conditions and cvs. Toyonoka and Campinas showed higher incidence of diseases and less fruit firmness when compared to the other cultivars. © 2016, Sociedade de Olericultura do Brasil. All rights reserved.34340541

Cercosporin production by Cercospora coffeicola isolates: spectrophotometry and HPLC quantification and image analysis

Cercosporin has excellent properties of photosensitization that have been widely used in organophotocatalyst and photodynamic therapy as well as an antimicrobial agent. Therefore, there is a need to quantify it accurately with accessible methods. A comparative analysis of cercosporin quantification obtained by spectrophotometry (SPEC) and high-performance liquid chromatography (HPLC) was performed for nineteen Cercospora coffeicola isolates from different coffee-producing municipalities in Brazil. Image analysis of cercosporin crystals was performed in isolates with either high or low production of the toxin. Our results show that SPEC and HPLC are equally valid for the cercosporin evaluation of C. coffeicola cultures grown in vitro. The isolates with high cercosporin production had a higher crystal number and size when compared to the one with low cercosporin productioninfo:eu-repo/semantics/publishedVersio

Hyperendemicity, heterogeneity and spatial overlap of leprosy and cutaneous leishmaniasis in the southern Amazon region of Brazil

Neglected tropical diseases characterized by skin lesions are highly endemic in the state of Mato Grosso, Brazil. We analyzed the spatial distribution of leprosy and Cutaneous Leishmaniasis (CL) and identified the degree of overlap in their distribution. All new cases of leprosy and CL reported between 2008 and 2017 through the national reporting system were included in the study. Scan statistics together with univariate Global and Local Moran's I were employed to identify clusters and spatial autocorrelation for each disease, with the spatial correlation between leprosy and CL measured by bivariate Global and Local Moran's I. Finally, we evaluated the demographic characteristics of the patients. The number of leprosy (N = 28,204) and CL (N = 24,771) cases in Mato Grosso and the highly smoothed detection coefficients indicated hyperendemicity and spatial distribution heterogeneity. Scan statistics demonstrated overlap of high-risk clusters for leprosy (RR = 2.0; P <0.001) and CL (RR = 4.0; P <0.001) in the North and Northeast mesoregions. Global Moran's I revealed a spatial autocorrelation for leprosy (0.228; P = 0.001) and CL (0.311; P = 0.001) and a correlation between them (0.164; P = 0.001). Both diseases were found to be concentrated in urban areas among men aged 31-60 years, of brown-skinned ethnicity and with a low educational level. Our findings indicate a need for developing integrated and spatially as well as socio-demographically targeted public health policies

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02