Chave de identificação de espécies do estrato arbóreo da Mata Atlântica em Ubatuba (SP), com base em caracteres vegetativos

A chave de identificação foi elaborada com base no material herborizado das espécies do estrato arbóreo amostradas com pelo menos 4,8 cm de DAP, em dois trechos de Floresta Ombrófila Densa Submontana. Foram utilizadas apenas características morfológicas vegetativas, como a filotaxia, forma das folhas, presença ou ausência de estípulas, indumento e glândulas, dentre outros aspectos relevantes para a identificação das espécies, e observações de campo. A chave consta de 193 espécies (4 indeterminadas), distribuídas em 114 gêneros e 50 famílias botânicas, e uma versão eletrônica interativa está disponível para consulta on line (http://www.gama.ib.unicamp.br/gama/index.php ).The identification key was developed taking into account the herbarium specimens from the species of the arboreal stratum sampled, with at least 4.8 cm DBH, in two stretches of Lower Montane Rain Forest. Only morphological vegetative characters were used, such as phyllotaxy, leaf shape, presence or absence of stipules, trichomes and glands, and other aspects relevant to the species identification, besides field observations. The key comprises 193 (4 without identification) species belonging to 114 genera and 50 botanical families, and an interactive electronic version is available online at the site http://www.gama.ib.unicamp.br/gama/index.php.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto Agronômico de CampinasUniversidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências Programa de Pós-Graduação em Ciências BiológicasUniversidade Estadual de Campinas Instituto de Biologia Departamento de Biologia VegetalUniversidade Estadual de Campinas Instituto de Biologia Departamento de BioquímicaUniversidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências Programa de Pós-Graduação em Ciências Biológica

Qualidade fisiológica de sementes e desempenho de plantas de rúcula no campo

O estudo teve como objetivo avaliar a influência da qualidade fisiológica de diferentes lotes de sementes de rúcula (Eruca sativa L.) no desenvolvimento inicial e na produção comercial. Avaliou-se a qualidade fisiológica das sementes mediante testes de germinação, primeira contagem de germinação, índice de velocidade de germinação, comprimento da raiz primária e da parte aérea, massa fresca e seca de plântulas. Aos 10 dias após a semeadura em campo, avaliou-se a percentagem de emergência, comprimento de raiz e da parte aérea, massa fresca e seca das plântulas. Aos 35 dias após a semeadura, foram avaliados o número de folhas, número de folhas maiores que dez centímetros, massa fresca e seca das plantas. O delineamento experimental foi inteiramente casualizado utilizando-se quatro tratamentos (lotes) e quatro repetições. Quanto à qualidade fisiológica das sementes de rúcula, houve estratificação dos lotes, sendo que os mais vigorosos possibilitaram o maior desenvolvimento de raiz e da parte aérea aos 10 dias após a semeadura, entretanto a qualidade fisiológica das sementes não influenciou na produção comercial da cultura.The study had as objective evaluates the influence of different physiologic quality seeds of Eruca sativa L. in the initial development and in the commercial production. It was evaluated the physiological quality of seeds by tests of germination, first count, speed of germination-index, root length and shoot, fresh and dry weight of seedlings. At 10 days after sowing in the field, the percentage of emergence, root length and shoot, fresh and dry plants was estimated. After 35 days of sowing, the number of leaves, number of leaves greater than 10 cm, fresh and dry plants was evaluated. A randomized complete block design was used with four treatments (lots) and four replications. There was stratification of lots on the physiological quality of rocket seeds. The seeds vigorous possible the further development of root and shoot at ten days after the sowing, however the physiological quality of seeds didn't affect the commercial production of the culture

Sustained virological response to treatment of chronic hepatitis C with peginterferon alfa and ribavirin

This study aimed to evaluate the rate of sustained virological response (SVR) and the clinical and treatment characteristics of patients with chronic hepatitis C (CHC). A retrospective uncontrolled cohort study was conducted among patients who received treatment for CHC between 2005 and 2008 attended at the Center for the Application and Monitoring of Injectable Medications, in Florianopolis, SC, Brazil. The inclusion criteria were: patients over 18 years of age, with a confirmed diagnosis of chronic hepatitis C according to Brazilian guidelines, treated with PEG-IFN alfa-2a or 2b associated with RBV. A total of 188 patients were included in the study: 70% men, 59% genotype 1, 27% coinfected with HIV, 31% with cirrhosis. The SVR rate, calculated by probability theory, was determined as 26% (max=57.4% and min=12.8%) and the intention to treat was 12.8%. Associations between Sustained Virological Response (SVR) and the variables sex (p=0.017), age (p=0.003), genotype (p=0.648) and cirrhosis (p=0.275), were determined in the bivariate analysis and only sex and age were significantly associated with SVR. The SVR rate was considered low, which can be partially explained by patients' unfavorable pretreatment characteristics.O objetivo do estudo foi avaliar a taxa de resposta viral sustentada (RVS) e as características clínicas e do tratamento dos pacientes portadores de hepatite C crônica. Realizou-se uma coorte retrospectiva não controlada com recorte temporal dos anos de 2005 a 2008, dos pacientes atendidos no Polo de Aplicação e Monitoramento de Medicamentos Injetáveis, em Florianópolis, SC. Os critérios de inclusão foram: pacientes maiores de 18 anos, com diagnóstico confirmado de hepatite C crônica de acordo com o protocolo brasileiro, tratados com PEG-IFN alfa-2a ou 2b associado a ribavirina. Total de 188 pacientes foi incluído no estudo, 70% homens, 59% genótipo 1, 27% co-infectados com o HIV e 31% apresentando cirrose. A taxa de RVS calculada através da teoria das probabilidades foi de 26% (max=57,4% and min=12,8%) e por intenção de tratamento de 12,8%. Verificou-se a associação da RVS com as variáveis: sexo (p=0,017), idade (p=0,003), genótipo (p=0,648) e presença de cirrose (p=0,275). Somente sexo e idade foram associados significativamente com a RVS. A taxa de RVS foi considerada baixa e, em parte, pode ser explicada pelas características desfavoráveis dos pacientes para a obtenção de RVS

Arboreal Eudicotyledons, Universidade Federal Rural do Rio de Janeiro Botanical Garden, state of Rio de Janeiro, Brazil

The Universidade Federal Rural do Rio de Janeiro (Federal Rural University of Rio de Janeiro) BotanicalGarden (JB/UFRRJ) has a green area occupied mostly by sparsely planted arboreal species, in addition to a small area ofregenerating forest and plantations. In consideration of the Brazilian federal rules for botanical gardens, the collection ofthe Arboretum was studied systematically: collection of complete samples, herborization and identification of the speciesby accepted botanical methods. The occurrence of native species from different Brazilian phytogeographic domains andcommon names were verified. A total of 125 species of arboreal Eudicotyledons, belonging to 30 families were registered,of which Fabaceae, Bignoniaceae, Malvaceae, Myrtaceae and Anacardiaceae were the richest ones. Species in danger ofextinction and others with biological, ecological or economic value are represented, demonstrating the importance of thearea to flora conservation

Repeatability of agronomic traits in Panicum maximum (Jacq.) hybrids

When evaluating plants, in particular perennial species, it is common to obtain repeated measures of a given trait from the same individual to evaluate the traits’ repeatability in successive harvests. The degree of correlation among these measures defines the coefficient of repeatability, which has been widely utilized in the study of forage traits of interest for breeding. The objective of the present study was to evaluate the repeatability of agronomic traits in Panicum maximum hybrids. Hybrids from three progenies totaling 320 hybrids were evaluated in an incomplete- block design, with consideration of production and morpho-agronomic traits. Of the production traits, total dry matter and leaf dry matter showed the highest repeatability and varied from 0.540 to 0.769, whereas stem dry matter had lower coefficients (0.265-0.632). Among the morpho-agronomic traits, plant height and incidence of Bipolaris maydis had higher coefficients (0.118-0.460). The repeatability values of the agronomic traits were low-to-moderate, and six evaluations were sufficient to provide accuracy in the selection of hybrids regarding total dry matter, leaf dry matter, plant height, and incidence of B. maydis, whereas the other traits require more repeated measures to increase reliability in the prediction of their response