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	Provedor de dados Scientia Agricola (2) Boletín de la Sociedad (1) Autor Camargo,Luis Eduardo Aranha (2) Dubcovsky,Jorge (2) Gieco,Jorge Omar (2) Cordo,Cristina Alicia (1) Linde,Celeste C. (1) Mcdonald,Bruce (1) Zhan,Jashiu (1) Mais... Palavra-chave Mycosphaerella graminicola (3) Leaf blotch (2) Triticum aestivum (2) DNA hybridization (1) Disease resistance (1) Epidemiology (1) Genetic diversity (1) Genotypic diversity (1) Horizontal resistance (1) RFLP (1) Septoria tritici (1) Vertical resistance (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Info:eu-repo/semantics/other (1) Ano 2006 (1) 2004 (2) País Brazil (2) Argentina (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Aggressiveness and physiological specialization of Septoria tritici Rob. isolates Scientia Agricola Gieco,Jorge Omar; Dubcovsky,Jorge; Camargo,Luis Eduardo Aranha. Pathogenicity tests verifying the behavior of Septoria tritici isolates should be considered as a priority in the selection of resistant wheat materials to this pathogen, since the aggressiveness of each isolate can vary significantly, causing problems in the evaluation and selection of resistant genotypes. The objective of this work was to determine whether physiologic specialization exists among Argentinean and American Septoria tritici isolates, through the analysis of their pathogenicity on cultivars and lines of bread wheat (Triticum aestivum L.). The experiments were carried out in Castelar-Argentina and in Davis-USA. In Castelar, a split plot design (n = 4) was used. The cultivars or lines were randomized in the plots and the isolates in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycosphaerella graminicola; Triticum aestivum; Leaf blotch; Vertical resistance; Horizontal resistance. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400010 Genotypic Diversity of the Wheat leaf blotch pathogen ( Septoria tritici ) in Buenos Aires Province Boletín de la Sociedad Cordo,Cristina Alicia; Linde,Celeste C.; Zhan,Jashiu; Mcdonald,Bruce. The population structure and genotypic diversity of Septoria tritici Rob ex Desm. from two crop field populations in Buenos Aires Province were studied with DNA restriction fragment length polymorphism. Hierarchical samples were taken from different cultivars. A total of 120 single spore isolates was subject to molecular analysis to compare the genetic structure of Los Hornos and Balcarce populations separated by 500km. Eight RFLP loci and 1DNA fingerprinting were used. Among the total of the isolates, 24 RFLP alleles were detected from the first population and 22 from the second. Gene and genotype diversity were high in both populations. Different haplotypes for each region were identified. Identical haplotypes were clustered in the same location in the... Tipo: Info:eu-repo/semantics/other Palavras-chave: DNA hybridization; Septoria tritici; Mycosphaerella graminicola; RFLP; Epidemiology; Genetic diversity; Genotypic diversity. Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722006000200010 Interaction between resistance to Septoria tritici and phenological stages in wheat Scientia Agricola Gieco,Jorge Omar; Dubcovsky,Jorge; Camargo,Luis Eduardo Aranha. Studies dedicated to understanding the behavior of pathogens in relation to their hosts are the starting point for any breeding program aimed to develop resistant cultivars. The objective of this study was to analyze the resistance to Septoria tritici Rob in 77 F11 progenies of wheat derived from the three-way cross Tadinia <FONT FACE=Symbol>´</FONT> (Yecora rojo <FONT FACE=Symbol>´</FONT> UC554) in the phenological stages of seedling, tillering, and flag leaf/flowering. Three field experiments were conducted where plants were artificially inoculated at one of the above mentioned phenological stages by spraying with a suspension of conidia. A randomized block design with four replications was used in each experiment. Disease... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycosphaerella graminicola; Triticum aestivum; Leaf blotch; Disease resistance. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400011 Registros recuperados: 3 Primeira ... 1 ... Última

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