Conservação ambiental forte alcançada através de sistemas agroflorestais multiestratificados: 1 - agroflorestas e a restauração ecológica de florestas.

O objetivo deste trabalho foi verificar se um sistema agroflorestal multiestratificado (agrofloresta) agroecológico pode ser considerado como tendo uma sustentabilidade ambiental forte, com base em uma análise dos serviços ecossistêmicos de restauração florestal. Para tanto, foi utilizado resultados de pesquisas que compararam agroflorestas e regenerações naturais. Os resultados sugerem que as agroflorestas apresentam uma sustentabilidade ambiental forte e potencial de promover a restauração florestal, no entanto, é um sistema produtivo e não uma metodologia de restauração. Este fato, ao mesmo tempo em que impõe desafios legais e conceituais, aponta para uma alternativa de restauração para as florestas brasileiras.Edição do 1º Seminário de Agroecologia da América do Sul; 5º Seminário de Agroecologia de Mato Grosso do Sul; 4º Encontro de Produtores Agroecológicos de Mato Grosso do Sul; 1º Seminário de Sistemas Agroflorestais em Bases Agroecológicas de Mato Grosso do Sul, 2014, Dourados, MS - AGROECOL

Área e índice de área foliar de bananeiras prata-anã e BRS platina submetidas à adubação orgânica.

A 'Prata-Anã é a principal variedade cultivada nos Perímetros Públicos de Irrigação do 7 Sudoeste da Bahia e do Norte de Minas Gerais, mas apesar da boa aceitação comercial é susceptível 8 às sigatokas e ao mal-do-Panamá. A ?BRS Platina? (AAAB), um híbrido recentemente 9 recomendado (BORGES et al., 2014), é indicado como alternativa à 'Prata-Anã', em ambientes onde 10 o mal-do-Panamá é fator limitante ao cultivo, além de frutos com melhor classificação comercial

Efficiency of microsatellite markers in assisted selection for resistance to soybean cyst nematode (race 3).

Four microsatellite sequences were tested in soybean DNA from cultivars and segregating genotypes. Three of them were close to the resistance locus rhg 1 on molecular linkage group G (Satt 309, Sat_168, Sat_163) and one was close to Rhg4 locus on group A2 (Sat_162). Progenies previously classified as cyst nematode (SNC) resistant and others with unknown reaction were tested, using the resistant cultivars Liderança, and Renascença and the susceptibles 'Cristalina' and 'OCEPAR-4' as control. The best primer for resistance to SCN was Sat_162. Twenty segregant progenies tested with Sat_162 presented a 150 bp band for homozygous resistant genotypes and 200 bp for susceptible ones, and both for the heterozigous genotypes. Previous studies have shown that this microsatellite marker is efficient to select genotypes carrying Peking-derivative resistance. 'Peking' takes part in the in the genealogy of all segregant progenies evaluated in this study. Thus, the obtained results showed that Sat_162 distinguished resistant and susceptible soybean genotypes to SCN, race 3

Impacto do tipo de fibrilhac¸ão auricular no contexto das síndromes coronárias agudas: características clínicas e prognóstico

INTRODUCTION: Atrial fibrillation (AF) is widely recognized as an adverse prognostic factor during acute myocardial infarction, although the impact of AF type - new-onset (nAF) or pre-existing (pAF) - is still controversial. OBJECTIVES: To identify the clinical differences and prognosis of nAF and pAF during acute coronary syndromes (ACS). METHODS: We performed a retrospective observational cohort study including 1373 consecutive patients (mean age 64 years, 77.3% male) admitted to a single center over a three-year period, with a six-month follow-up. RESULTS: AF rhythm was identified in 14.5% patients, of whom 71.4% presented nAF and 28.6% pAF. When AF types were compared, patients with nAF more frequently presented with ST-elevation ACS (p=0.003). Patients with pAF, in turn, were older (p=0.032), had greater left atrial diameter (p=0.001) and were less likely to have significant coronary lesions (p=0.034). Regarding therapeutic strategy, nAF patients were more often treated by rhythm control during hospital stay (p<0.001) and were less often anticoagulated at discharge (p=0.001). Compared with the population without AF, nAF was a predictor of death during hospital stay in univariate (p<0.001) and multivariate analysis (OR 2.67, p=0.047), but pAF was not. During follow-up, pAF was associated with higher mortality (p=0.014), while nAF patients presented only a trend towards worse prognosis. CONCLUSIONS: AF during the acute phase of ACS appears to have a negative prognostic impact only in patients with nAF and not in those with pAF