SciELO - Scientific Electronic Library Online

 
vol.13 issue1Search for sources of resistance to Fusarium wilt (Fusarium oxysporum f. sp. vasinfectum) in okra germplasmParental selection of wheat lines based on phenotypic characterization and genetic diversity author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Crop Breeding and Applied Biotechnology

On-line version ISSN 1984-7033

Abstract

MENEZES JUNIOR, José Ângelo Nogueira de et al. Two cycles of recurrent selection in red bean breeding. Crop Breed. Appl. Biotechnol. [online]. 2013, vol.13, n.1, pp.41-48. ISSN 1984-7033.  https://doi.org/10.1590/S1984-70332013000100005.

This study was carried out for the purpose of estimating genetic progress after two cycles of recurrent selection in red bean breeding and of obtaining new lines. In cycle zero, F3:5 and F3:6 families were evaluated. In cycle one, the families were extracted in generation F5 and evaluated in generations F5:6 and F5:7. As the families were evaluated in different years and generations, the estimate of genetic progress was obtained by simultaneously evaluating the 30 best lines obtained at the end of each cycle in experiments conducted through three crop seasons. After two cycles of recurrent selection, genetic progress, in the mean value of the crop seasons, was 7.5% for grain yield, 7% for grain appearance, 33.4% for resistance to rust and 13.2% for resistance to angular leaf spot. Lines of red beans were obtained with potential for being included in future Value for Cultivation and Use (VCU) testing for Minas Gerais, Brazil.

Keywords : Phaseolus vulgaris; quantitative genetics; plant breeding.

        · abstract in Portuguese     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License