Selection of common bean families for resistance to anthracnose, grain yield and Carioca grain type. / SeleÃÃo de famÃlias de feijÃo com resistÃncia à antracnose, produtividade e tipo de grÃo carioca

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

In the common bean breeding besides anthracnose resistance other agronomical traits need to be considered to achieve the producer and consumer requirements The objectives of this work were to select common bean families resistant to anthracnose high grain yield Carioca grain type and upright plant type Two hundred-twenty four lines from genitors CNFC 10706 B1 and H147 were evaluated All of them have Carioca grain type The B1 line is resistant to anthracnose due to the Co-4 allele and the H147 due to the Co-5 allele From the CNFC 10706 x H147 CNFC 10706 x B1 and H147x B1 224 F2:3 families plus the check Talismà were evaluated in the winter/spring season of 2004 at Lavras county based on grain type Ninety nine families were selected and evaluated plus the check in the dry season of 2005 at Lavras and Lambari counties Those families were also inoculated with races 337 and 593 of C lindemunthianum The 35 selected families (F2:5) were evaluated in the winter/spring of 2005 at Ijaci county The square lattice design was used in all experiments The 35 families were also inoculated with races 65 and 321 of C lindemunthianum Through the inoculations and the Co-4 SCAR marker the genetic constitutions of most of the 35 families were identified Four families with Carioca grain type upright plant type high grain yield and bearing the Co-4 and Co-5 alleles for anthracnose resistance were selected

ASSUNTO(S)

seleÃÃo anthracnose antracnose common bean melhoramento vegetal variedade resistente selection feijÃo families resistant

ACESSO AO ARTIGO

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