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Phenotyping for angular leaf spot severity and its implication in breeding common bean for resistance Scientia Agricola
Pereira,Rafael; Abreu,Ângela de Fátima Barbosa; Nalin,Rafael Storto; Souza,Elaine Aparecida de.
ABSTRACT: Phenotyping for severity of angular leaf spot (ALS) in common bean is important to identify new sources of resistance and select progenies in conventional and molecular marker-assisted breeding. In this study, three phenotyping methods for ALS severity were assessed and its implications in breeding for resistance to Pseudocercospora griseola are discussed. Reaction of 144 common bean lines to P. griseola was evaluated. Three different experiments were conducted in the greenhouse (V2 and V3 stages) and in the field. Common bean lines were inoculated with a mixture of spores of pathogen races 63-63 and 63-23. We observed that 31 %, 7 % and 10 % of lines were resistant in stages V2, V3 and in the field, respectively. Estimates of coincidence index...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Pseudocercospora griseola; Genetic resistance; Artificial inoculation.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500415
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