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	Provedor de dados Scientia Agricola (2) Rev. Bras. Frutic. (2) BABT (1) Bragantia (1) Autor Silva,Edson Ferreira da (6) Veasey,Elizabeth Ann (3) Ando,Akihiko (2) Martins,Luiza Suely Semen (2) Montalván,Ricardo (2) Lederman,Ildo Eliezer (1) Martins,Georgia Vilela (1) Nascimento,Wellington Ferreira do (1) Oliveira,Giancarlo Conde Xavier (1) Oliveira,Visêldo Ribeiro de (1) Schammass,Eliana Aparecida (1) Silva,Lucielio Manoel da (1) Tulmann Neto,Augusto (1) Mais... Palavra-chave Genetic variability (2) Oryza (2) Arroz silvestre (1) Brazil (1) Conservation (1) Ex-situ conservation (1) Gene flow (1) Genetic diversity (1) Genetic resources (1) Germplasm (1) Germplasm conservation (1) Isozyme (1) Isozymes (1) Mangabeira (1) Morphology (1) Natural crossing (1) Oryza sativa L (1) Pre-breeding (1) Qualitative traits (1) Quantitative traits (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Info:eu-repo/semantics/report (1) Ano 2012 (1) 2011 (1) 2009 (1) 2008 (1) 2005 (1) 1999 (1) Mais... País Brazil (6) Idioma Inglês (5) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 6 Primeira ... 1 ... Última Agro-morphological characterization of upland rice accessions Scientia Agricola Nascimento,Wellington Ferreira do; Silva,Edson Ferreira da; Veasey,Elizabeth Ann. The agro-morphological characterization is fundamental in order to provide information for plant breeding programs. The aim of the present study was to characterize 146 accessions of upland rice (Oryza sativa L.), based on qualitative and quantitative agro-morphological descriptors. The experiment was conducted in Recife, state of Pernambuco, Brazil, using a randomized block design with three replicates. Polymorphism was observed among 12 of 14 qualitative characters evaluated, whereas significant differences (p < 0.05) were observed for 11 of the 14 analysed quantitative traits. Genetic variance was higher than environmental variance and the average inheritability coefficients were above 80 % for all characters, which ensures the predominance of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic variability; Germplasm; Ex-situ conservation; Pre-breeding. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600008 Crossing rate and distance in upland rice Bragantia Silva,Edson Ferreira da; Silva,Lucielio Manoel da; Montalván,Ricardo. Rice (Oryza sativa L.) is an autogamous species that shows natural crossing rates of up to 3%, where the variations are influenced by genotypes and environments. The present work aimed to evaluate the rates and distances of natural crossing between the upland rice cultivars Guarani and IAC 201. The study was done in the counties of Carpina and Recife, in the State of Pernambuco during the agricultural years of 2001 and 2002, respectively. The Guarani cultivar presents leaf pilosity conditioned by the dominant alleles HLHL and this character was used as a morphologic tracer. On the other hand, the IAC 201 cultivar does not show pilosity because it carries the recessive alleles (hlhl). The experiments were composed of four blocks, constituting of ten... Tipo: Info:eu-repo/semantics/report Palavras-chave: Oryza sativa L; Upland rice; Natural crossing. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200005 Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil Rev. Bras. Frutic. Martins,Georgia Vilela; Martins,Luiza Suely Semen; Veasey,Elizabeth Ann; Lederman,Ildo Eliezer; Silva,Edson Ferreira da. Hancornia speciosa Gomes is a fruit tree native from Brazil that belongs to Apocinaceae family, and is popularly known as Mangabeira. Its fruits are widely consumed raw or processed as fruit jam, juices and ice creams, which have made it a target of intense exploitation. The extractive activities and intense human activity on the environment of natural occurrence of H. speciosa has caused genetic erosion in the species and little is known about the ecology or genetic structure of natural populations. The objective of this research was the evaluation of the genetic diversity and genetic structure of H. speciosa var. speciosa. The genetic variability was assessed using 11 allozyme loci with a sample of 164 individuals distributed in six natural populations... Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation; Gene flow; Genetic resources; Genetic variability; Isozyme; Mangabeira. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000400023 Diversity and genetic struture in cajá tree (spondias mombin l.) populations in northeastern Brazil Rev. Bras. Frutic. Silva,Edson Ferreira da; Martins,Luiza Suely Semen; Oliveira,Visêldo Ribeiro de. Spondias mombin L. is a fruit tree from the American continent from the Anacardiaceae family. In Brazil it is common in different vegetation types but is more frequent in the Atlantic and Amazonian rainforests. It is economically important because of its fruits, which are widely consumed raw or processed as fruit jellies, juices and ice creams. The leaves have great importance in the pharmaceutical industry because of their antibacterial properties. In the state of Pernambuco, cajá tree is widely distributed in the Zona da Mata region and less frequently in the Agreste and Sertão areas. In this work diversity and genetic structure were studied in four populations of cajá tree from Pernambuco's Zona da Mata, Northeast Brazil, using isozymes polymorphism... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic diversity; Germplasm conservation; Isozymes. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452009000100024 Método prático para o cultivo de espécies silvestres do gênero Oryza Scientia Agricola Silva,Edson Ferreira da; Ando,Akihiko; Montalván,Ricardo; Tulmann Neto,Augusto. É descrito um método simples e prático para o cultivo de plantas das espécies silvestres do gênero Oryza, em vasos com solo orgânico, submersos em "piscinas" com água. Este método proporciona às plantas uma condição similar ao habitat natural da maioria das espécies, favorecendo assim o desenvolvimento e a prolificidade dos genótipos. Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza; Arroz silvestre. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161999000400032 Morphoagronomic genetic diversity in american wild rice species BABT Veasey,Elizabeth Ann; Silva,Edson Ferreira da; Schammass,Eliana Aparecida; Oliveira,Giancarlo Conde Xavier; Ando,Akihiko. To characterize the genetic variability among species and populations of South American wild rice, eleven populations of Oryza glumaepatula, seven of O. grandiglumis, four of O. latifolia and one of O. alta, from Brazil and Argentina, were evaluated. A greenhouse experiment was conducted in completely randomized blocks with 23 treatments. Twenty morphoagronomic traits were assessed. Univariate analyses were performed with 16 quantitative traits with the partitioning of populations within species. Significant differences (p<0.001) between species were observed for all the traits as well as among populations within the species. The most variable was O. glumaepatula followed by O. latifolia. Multivariate discriminant canonical and cluster analyses... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Quantitative traits; Qualitative traits; Morphology; Oryza. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100012 Registros recuperados: 6 Primeira ... 1 ... Última

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