Estimation of genetic progress after eight cycles of recurrent selection for common bean grain yield

Silva, Graciele Simoneti da; Ramalho, Magno Antônio Patto; Abreu, Ângela de Fátima Barbosa; Nunes, José Aírton Rodrigues

doi:10.1590/s1984-70332010000400010

Cited by 17 publications

(27 citation statements)

References 15 publications

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“…It may be deduced that there is still genetic variability that can continue obtaining success from selection. These results corroborate the ones obtained by Silva et al (2010), who estimated the genetics' progress after eight cycles of the recurrent selection with the aim of obtaining lines with high yield. These authors verified that this selection did not reduce the genetic variability for this feature from estimates of h² of the progenies evaluated in different selection cycles.…”

Section: Discussionsupporting

confidence: 90%

Recurrent mass selection for upright plant architecture in common bean

Pires

Ramalho

Abreu

et al. 2014

Sci. agric. (Piracicaba, Braz.)

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Plant with a more upright architecture offers many advantages to farmers. Recurrent mass selection (RS) programs for carioca type common bean have been implemented for the purpose of obtaining new lines that will generate the high yields that are associated with upright plant architecture. This study aimed to assess the efficiency of recurrent mass selection (RS) for upright plant architecture in common bean (Phaseolus vulgaris) and the effect of RS on grain yield and to verify whether or not there is still variability in the population that favors continuing selection programs, using information obtained from progenies evaluated in cycle five (CV) and cycle eight (CVIII) of the RS program. Mass selection for more upright plants was performed visually in the "S 0 " generation before flowering. Progenies S 0:3 and S 0:4 were evaluated in 2009 (CV) and 2011 (CVIII). Heritability (h²) and RS progress were estimated using adjusted means.After eight selection cycles, the population subjected to RS still had enough genetic variability to achieve continued success through recurrent selection. The RS progress was 1.62 % per cycle for the growth habit scores and 6.81 % for grain yield.

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Section: Discussionsupporting

confidence: 90%

Recurrent mass selection for upright plant architecture in common bean

Pires

Ramalho

Abreu

et al. 2014

Sci. agric. (Piracicaba, Braz.)

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“…Silva et al (2010) confirmed the efficiency of this strategy in breeding of common bean with carioca grain. The authors observed an increase in yield and improved grain appearance, with variability in the population, even after eight selection cycles.…”

Section: Introductionsupporting

confidence: 65%

“…In the mean of the two seasons, the genetic gain was 8.6%, which is equivalent to 293 kg ha -1 . Genetic gain estimates of recurrent selection in common bean for grain yield from 3.3 to 55% are reported in the literature (Ranalli 1996, Singh et al 1999, Ramalho et al 2005, Menezes Júnior et al 2008, Silva et al 2010. Ramalho et al (2005) evaluated the genetic gain in four recurrent selection cycles in breeding of carioca bean in grain yield and appearance.…”

Section: Resultsmentioning

confidence: 99%

Genetic progress and potential of common bean families obtained by recurrent selection

Alves

Júnior

Menezes

et al. 2015

Crop Breed. Appl. Biotechnol.

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“…In irrigated rice, successful results from the efficiency of recurrent selection have been published (Rangel et al, 2002;Rangel et al, 2007), as for other crops, such as common bean (Phaseolus vulgaris L.) (Silva et al, 2010), oats (Avena sativa L.) (Holland et al, 2000), soybean (Glycine max (L.) (Uphoff et al, 1997) and wheat (Triticum aestivum L.) (Niu et al, 2010). On upland rice, however, few studies have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Genetic progress after cycles of upland rice recurrent selection

Júnior

Melo

Morais

et al. 2015

Sci. agric. (Piracicaba, Braz.)

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Periodic assessment of the genetic progress made in recurrent selection programs is essential for assessing the evolution of the programs and identifying the main factors that have contributed to this progress. This study aimed to estimate genetic progress in grain yield, plant height and days-to-flowering achieved in the CNA6 population of upland rice (Oryza sativa L.), after four cycles of recurrent selection; and evaluate the genetic potential of this population to generate superior inbred lines after each selection cycle. The experimental data were obtained from progeny yield trials of each recurrent selection cycle. These trials were carried out in two or three locations per cycle, and consisted of S 0:2 progenies and at least three checks. Federer's augmented block design, with one replication on location (the environment), was adopted.Results revealed genetic progress for grain yield and plant height, with total genetic gains of 375.87 kg ha −1 and -3.90 cm, respectively, during the four selection cycles. The annual relative gain observed for grain yield was 1.54 %. The genetic potential of the population was analysed by the expected proportion of superior inbred lines. The standard adopted as the limit for obtaining superior inbred lines was the average of the checks for each trait. The genetic potential for grain yield and plant height increased during the study period. For days-to-flowering, no genetic gain occurred; however, the genetic potential of the population to generate superior inbred lines for this trait was maintained after the selection cycles.

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Estimation of genetic progress after eight cycles of recurrent selection for common bean grain yield

Abstract: ABSTRACT

Cited by 17 publications

References 15 publications

Recurrent mass selection for upright plant architecture in common bean

Recurrent mass selection for upright plant architecture in common bean

Genetic progress and potential of common bean families obtained by recurrent selection

Genetic progress after cycles of upland rice recurrent selection

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