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Ciência Rural

Print version ISSN 0103-8478On-line version ISSN 1678-4596


RIBEIRO, Nerinéia Dalfollo; POSSEBON, Sandro Borba  and  STORCK, Lindolfo. Genetic gain in agronomic traits in common bean breeding. Cienc. Rural [online]. 2003, vol.33, n.4, pp.629-633. ISSN 0103-8478.

The objective of this work was to estimate genetic gain for grain yield and other important breeding traits of common bean. The experiments were conducted in the central region of Rio Grande do Sul, Brazil, in four grow seasons. The genetic gain was estimate for each year, considering common genotype in two sequencial years. The results showed that annual mean genetic gain for grain yield was 0.88%, which corresponded to 18.07kg ha-1 year-1. Genetic loss was verified in colour of grain tegument, height of first and final pod insertion. Small genetic gain was observed for cycle and weight of 100 grains.

Keywords : Phaseolus vulgaris; genetic gain; genotypes.

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