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Combining ability for common bacterial blight resistance in snap and dry bean (Phaseolus vulgaris L.) Agronomy
Trindade, Roberto dos Santos; Rodrigues, Rosana; Amaral Junior, Antonio Teixeira do; Gonçalves, Leandro Simões Azeredo; Viana, José Marcelo Soriano; Sudré, Claudia Pombo.
Common bacterial blight (CBB), which is caused by Xanthomonas axonopodis pv. phaseoli (Xap), is the main bacterial disease in snap beans and controlling this disease using resistant cultivars is still a challenge. This work aimed to study the combining ability for CBB resistance in Phaseolus vulgaris genotypes. Six parents (two genotypes of CBB-resistant dry bean and four susceptible snap bean accessions) were crossed in a complete diallel scheme without reciprocals to estimate the general and specific ability to Xap resistance. CBB resistance was evaluated by the inoculation with two Xap isolates, and its severity was evaluated based on the four following resistance components: area under the disease progress curve; scores in the leaves; latent period and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Xanthomonas axonopodis pv. phaseoli; Disease-resistance inheritance; Genetic effects; General and specific combining ability.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16505
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