Genetic variability for dietary fiber content in common bean populations
Patrícia Medianeira Grigoletto Londero, Nerinéia Dalfollo Ribeiro, Josana de Abreu Rodrigues, Nerison Luiz Poersch, and Marcinéia Trentin
Common bean with its diverse nutrients and fiber is one of the main foods in the staple diet of the Brazilian population. Objectives of this study were therefore the estimation of the general and specific combining abilities in common bean cultivars, to assess their potential of use to increase the dietary fiber content. The crossings were realized in the form of complete diallels and 12 hybrids from the possible combinations among four parents (CNFP 8100, FT 96-1282, Valente and Varre-Sai) were established. The parents and obtained populations were evaluated in the field in a randomized complete block design. The obtained results manifested the presence of genetic variability for dietary fiber content in the populations. The parent CNFP 8100 presented a larger estimate of the effects of the general combining ability. Common bean lines with a higher content of dietary fiber can be obtained through selection in the populations developed based on the crossing CNFP 8100 x FT 96-1282.