Consulta: creatorFacets:"Ferreira,D.F."
Registros recuperados: 5
Data/hora: 05/06/2024 02:32:45

Genetic control of the fungus Colletotrichum lindemuthianum (Sacc. &amp;amp; Magn.) Scrib. reaction and corona color in the common bean (Phaseolus vulgaris L.)
Provedor de dados: 74
Autores: Mendonça,H.A. de; Santos,J.B. dos; Ramalho,M.A.P.; Ferreira,D.F.
An important trait for common bean (Phaseolus vulgaris L.) cultivars with Carioca type grain is resistance to Colletotrichum lindemuthianum, which causes anthracnose and a pale corona. The present study was conducted to understand the genetic control of common bean reaction to the fungus and of the corona color, to provide guides to future breeding studies. Genotypes P-45, with brown corona, and EMGOPA 201-Ouro, with yellow corona, are resistant to C. lindemuthianum. Cultivar Carioca is susceptible to anthracnose, but it has desirable grain and corona color. Anthracnose resistance and corona color were studied in the F1 and F2 generations of three populations resulting from crosses of P-45, EMGOPA 201-Ouro, and Carioca. The Carioca x P-45 cross indicated...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000300008

Estimativa da erodibilidade a partir de atributos de solos com horizonte B textural no Brasil
Provedor de dados: 90
Autores: Marques,J.J.G.S.M.; Curi,N.; de Lima,J.M.; Ferreira,M.M.; Silva,M.L.N.; Ferreira,D.F.
Os métodos existentes para estimar a erodibilidade dos solos (fator K) não se têm mostrado adequados quando aplicados a solos brasileiros. Este trabalho teve por objetivo o desenvolvimento de método indireto para estimar a erodibilidade, visando obter esse fator, a partir de propriedades do solo facilmente determináveis. Assim, os horizontes A e Bt (B textural) de 22 solos de várias regiões geográficas do Brasil foram submetidos a diversas análises químicas e físicas, e a descrição morfológica do perfil foi considerada. Tais resultados (variáveis independentes) foram submetidos à análise de regressão linear múltipla em "stepwise", e relacionados com a erodibilidade (fator K) medida diretamente no campo (variável dependente). Obtiveram-se várias equações...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Erosão; Erodibilidade do solo (fator K); Equação universal de perdas de solo.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06831997000300015

Heart rate variability and arrhythmias evaluated with Holter in dogs with degenerative mitral valve disease
Provedor de dados: 45
Autores: Oliveira,M.S.; Muzzi,R.A.L.; Araújo,R.B.; Muzzi,L.A.L.; Ferreira,D.F.; Silva,E.F.
Cardiac diseases promote alterations in the autonomic control of the heart, leading to an increase in heart rate and, as a result, a decrease in heart rate variability (HRV).The aim of this study was to evaluate if the development of heart failure secondary to degenerative mitral valve disease (DMVD) concurs with changes in autonomic modulation of heart rhythm which are assessed by long electrocardiography examination (Holter). Dogs were evaluated by clinical examination and echocardiography in order to be categorized into the following groups: Control (healthy; n=6), DMVD (disease without heart failure; n=8), and DMVD heart failure (disease with heart failure; n=13). Arrhythmias and frequency domain HRV were determined by Holter. Diseased animals, when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electrocardiography; Heart failure; Frequency-domain; Cardiology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200015

Use of discriminant analysis based on echocardiography for classification of congestive heart failure in dogs with myxomatous mitral valve disease
Provedor de dados: 45
Autores: Silva,A.C.; Muzzi,R.A.L.; Muzzi,L.A.L.; Ferreira,D.F.; Oberlender,G.; Oliveira,M.S.; Nogueira,R.B.; Ticle,L.B.
Mixomatous mitral valve disease (MMVD) is one of the most common cardiac abnormalities in dogs and humans that can lead to cardiac heart failure (CHF). Its diagnosis remains based on echocardiography and clinical signs. However, the early diagnose of MMVD can contribute to a better prognosis and avoid CHF. The aim of this study was to evaluate the clinical, radiographic and echocardiographic presence of CHF in dogs with MMVD in combination with a statistical model as a mathematical tool. For this purpose, dogs were divided into three groups (healthy; MMVD without CHF; and MMVD with CHF), according the clinical, radiographic and echocardiographic evaluation findings. Thus, linear discriminant functions were obtained by analyzing the variables weight, body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Cardiac disease; Statistical model; Vena contracta.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601727

Alternative procedures for parent choice in a breeding program for the common bean (Phaseolus vulgaris L.)
Provedor de dados: 54
Autores: Oliveira,L.B.; Ramalho,M.A.P.; Abreu,A. de F.B.; Ferreira,D.F.
Six common bean cultivars were crossed in diallel and the segregant populations were assessed in the F2 and F3 generations to compare methodologies for parental selection in a breeding program based on hybridization. The cultivars involved in the diallel were A 114, A 77, ESAL 686, Milionário, Carioca, and Flor de Mayo. The segregant F2 and F3 generations were assessed on the experimental campus of the Universidade Federal de Larvas, in July 1994. It was found that the cultivars differed in their general combining ability (GCA). Flor de Mayo, which belongs to the Durango race, had the largest positive GCA estimate for grain field, and the cultivars from the Mesoamerican race, Milionário and A 114, the smallest GCA estimates. For flowering, the cultivar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding program; Common bean.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400014