Consulta: creatorFacets:"Aguiar,Raimundo Wagner de Souza"
Registros recuperados: 3
Data/hora: 09/06/2024 11:39:45

Efeito do dióxido do carbono, temperatura e armazenamento sobre sementes de soja e micoflora associada
Provedor de dados: 124
Autores: Aguiar,Raimundo Wagner de Souza; Brito,Deyvid Rocha; Ootani,Marcio Akio; Fidelis,Rodrigo Ribeiro; Peluzio,Joenes Nucci.
O desenvolvimento vegetativo e reprodutivo da planta da soja está relacionado à tecnologia de produção de sementes de boa qualidade, com vigor e livres de patogenos. Desse modo, objetivou-se neste trabalho avaliar a efeito do dióxido de carbono (CO2) associado à temperatura sobre a micoflora e a qualidade das sementes em diferentes períodos de armazenamento. O delineamento usado foi inteiramente casualizado em fatorial (2 x 3 x 4), sendo duas temperaturas (25 e 31 ºC), três concentrações de CO2 (0,0; 2,5 e 5,0 g de CO2 kg-1 de sementes) e quatro períodos de armazenamento (30; 60; 90 e 120 dias). De acordo com resultados obtidos, observou-se que o dióxido de carbono foi extremamente tóxico para os fungos Aspergillus sp., Fuzarium sp., Coletrochium sp e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soja; Plantas-efeito da temperatura; Plantas-armazenamento; Germinação.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000300019

Morphological and molecular characterization of Curvularia lunata pathogenic to andropogon grass
Provedor de dados: 53
Autores: Santos,Patrícia Resplandes Rocha dos; Leão,Evelynne Urzêdo; Aguiar,Raimundo Wagner de Souza; Melo,Maruzanete Pereira de; Santos,Gil Rodrigues dos.
ABSTRACT The fungal genus Curvularia is associated with a number of diseases in plants, commonly producing foliar spots in forage grasses. The objective of this study was to characterize the morphological and molecular diversity of the isolates of Curvularia sp. associated with Andropogon seeds, and to assess both their capacity to transmit disease and the pathogenicity of this fungus to crop. Ten isolates of Curvularia sp. were sourced from Andropogon seeds from agricultural producing regions in the Brazilian states Tocantins and Pará. Morphological characterization was achieved by observing fungus colonies and conidia and molecular characterization by DNA extraction and amplification with sequence-specific primers. The disease transmission was evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andropogon L.; Curvularia lunata; Diagnosis; Phylogeny; Pathogen.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200326

Serological Identification of Virus in Watermelon Production Fields in the Tocantins State
Provedor de dados: 52
Autores: Aguiar,Raimundo Wagner de Souza; Rodrigues,Adelmo; Portella,Augustus Caeser Franke; Lopes,Magnolia de Mendonça; Lima,Mirtes Freitas; Resende,Renato de Oliveira; Nagata,Tatsuya.
Watermelon (Citrullus lanatus) cultivated in almost all tropical and subtropical regions of the world, has its largest output in China, and then, according to FAO data, Turkey, Iran and Brazil, being one of the main crops cultivated in State of Tocantins, Brazil. In this work was investigated the occurrence and distribution of the watermelon viruses, totaling 752 samples taken in a stratified experimental design in four representative regions of production: Gurupi (150), Lagoa da Confusao (232), Formoso do Araguaia (265) and Porto Nacional (105). The sampling and collecting the leaves of plants with the presence of symptoms were performed once a week during the entire cultivation cycle. As a result, were observed by Dot-ELISA method, different types of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Watermelon; Citrullus lanatus; Potyvirus; Cucumovirus; Tospovirus; Serological assay.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000200192