Genetic control on morphoagzronomic traits in snap bean

Silva, Marlon Peres da; Júnior, Antônio Teixeira do Amaral; Rodrigues, Rosana; Pereira, Messias Gonzaga

doi:10.1590/s1516-89132004000600004

Cited by 11 publications

(16 citation statements)

References 7 publications

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“…Genitor discrepancies and good gene complementation is necessary to achieve favorable agronomic characteristics (Hallauer and Miranda Filho, 1995). Diallel analysis is a breeding strategy to obtain superior genotypes because it provides consistent results over the years (Amaral Júnior et al, 1999;Cavalcanti et al, 2000;Gouis et al, 2002;Silva et al, 2004;Jaramillo et al, 2005;Marin et al, 2006;Bison et al, 2007). In Brazil, many popcorn studies have been conducted to determine genetic divergence Dandolini et al, 2008;Vilela et al, 2008;Silva et al, 2009;Trindade et al, 2010) in conjunction with the additional efforts in cytogenetics (Ricci et al, 2007), seed quality (Moterle et al, 2008), agronomic responses (Vendruscolo et al, 2001;Scapim et al, 2010), plant pathology (Vieira et al, 2009a), and the evaluation of breeding methods (Rangel et al, 2007(Rangel et al, , 2008Arnhold et al, 2009;Freitas Júnior et al, 2009;Amaral Júnior et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Combining ability of tropical and temperate inbred lines of popcorn

Silva¹,

Amaral²,

Gonçalves³

et al. 2010

Genet. Mol. Res.

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ABSTRACT. In Brazil, using combining ability of popcorn genotypes to achieve superior hybrids has been unsuccessful because the local genotypes are all members of the same heterotic group. To overcome this constraint, 10 lines (P 1 to P 10 ) with different adaptations to tropical or temperate edaphoclimatic environments were used to obtain 45 F 1 hybrids in a complete diallel. These hybrids and three controls were evaluated in two environments in Rio de Janeiro State. Grain yield (GY), popping expansion (PE), plant height (PH), ear height (EH), and days to silking (FL) were evaluated in randomized complete blocks with three replications. Significant differences between genotypes (P ≤ 0.05) were detected for GY, PE and EH. General combining ability was significant for EH, PH, PE, and GY, and specific combining ability was significant only for PE and GY. The most promising inbred lines that improved GY were P 3 and P 4 , unlike P 8 , P 9 and P 10 , which improved PE, and P 2 , which improved both PE and GY. The additive effects were much more important for PE than for GY. The hybrid combinations

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Section: Introductionmentioning

confidence: 99%

Combining ability of tropical and temperate inbred lines of popcorn

Silva¹,

Amaral²,

Gonçalves³

et al. 2010

Genet. Mol. Res.

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“…The use of diallel analysis procedures for choosing parents in Phaseolus vulgaris breeding programs has recently received higher emphasis from bean breeders (Abreu et al, 1999;Barelli et al, 1998Barelli et al, , 2000aBarelli et al, , 2000bBarelli et al, , 2000cMachado et al, 2002;Silva et al, 2004aSilva et al, , 2004b.…”

Section: Introductionmentioning

confidence: 99%

Combining ability and heterosis in common bean cultivars

Gonçalves‐Vidigal

Silvério

Elias

et al. 2008

Pesq. agropec. bras.

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-The objective of this work was to determine the combining ability and heterosis, for productivity and yield components, in diallel hybrids derived from crossings between BRSMG-Talismã, IPR Uirapuru, FT Soberano, BRS Campeiro, IAC Tybatã, and IPR Juriti parent cultivars. Fifteen hybrids were generated from diallel crosses, excluding reciprocals. The general and specific combining abilities were significant for plant height, number of pods per plant, number of seeds per plant, number of seeds per pod, 50-seed weight, and grain yield, indicating the occurrence of both additive and nonadditive genetic effects. The best strategy to be adopted is the use of BRS Campeiro, FT Soberano and BRSMG-Talismã cultivars in common bean breeding programs involving selection. The most promising combinations were 'IPR Uirapuru' x 'IAC Tybatã', 'IPR Uirapuru' x 'FT Soberano', 'BRS Campeiro' x 'IPR Juriti', and 'BRS Campeiro' x 'IAC Tybatã'. The parents of these hybrids presented high estimates of specific combining abilities. Hybridization of cultivars belonging to distinguished commercial groups propitiates higher heterosis values in the segregant population.Index terms: Phaseolus vulgaris, additive effects, diallel analysis, interpopulational breeding, intrapopulational breeding, nonadditive effects. Capacidade combinatória e heterose em cultivares de feijoeiro-comumResumo -O objetivo deste trabalho foi determinar a capacidade combinatória e a heterose, quanto à produtividade de grãos e aos componentes de rendimento, em híbridos derivados dos cruzamentos dialélicos entre as cultivares BRSMG-Talismã, IPR Uirapuru, FT Soberano, BRS Campeiro, IAC Tybatã, e IPR Juriti. Quinze híbridos foram gerados a partir dos cruzamentos dialélicos, sem os recíprocos. As capacidades de combinação geral e específica foram significativas em relação à altura de planta, ao número de vagens por planta, número de sementes por planta, número de sementes por vagem, peso médio de 50 sementes e à produção de grãos, e indicaram a ocorrência de efeitos aditivos e não aditivos. A melhor estratégia a ser adotada em programas de melhoramento que envolvam seleção é o uso das cultivares BRS Campeiro, FT Soberano e BRSMG-Talismã. As combinações mais promissoras foram 'IPR Uirapuru' x 'IAC Tybatã', 'IPR Uirapuru' x 'FT Soberano', 'BRS Campeiro' x 'IPR Juriti' e 'BRS Campeiro' x 'IAC Tybatã'. Os parentais destes híbridos apresentaram elevadas estimativas de capacidade específica de combinação. A hibridização de cultivares pertencentes a grupos comerciais distintos propicia maiores valores de heterose.Termos para indexação: Phaseolus vulgaris, efeitos aditivos, análise dialélica, melhoramento interpopulacional, melhoramento intrapopulacional, efeitos não aditivos.

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“…The ten hybrids were obtained by diallel crosses, without reciprocals, made by Silva et al (2004). In the F 2 generation, early selection was performed in four superior populations for the advancement of generations, based on higher pod yields (kg ha -1 ).…”

Section: Methodsmentioning

confidence: 99%

Association between advanced generations and genealogy in inbred lines of snap bean by the Ward-Modified Location Model

Barbé¹,

Júnior²,

Gonçalves³

et al. 2009

Euphytica

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The Ward-MLM strategy first proposed by Franco et al. (Crop Sci 38:1688-1696) is a useful method for analyzing genetic divergence for genealogical comparisons. However, this method has not yet been applied in conjunction with early generation testing (EGT) and single seed descent (SSD) procedures in autogamous plant species bred to advanced generations. In this study, we quantified the diversity of 120 recombinant snap bean lines from the F 6:7 generation, advanced by SSD from the application of EGT in F 2 , to investigate the association between the grouping of lines and genealogy using the Ward-MLM method. Four F 2 populations with high pod yields were selected from crosses among five genotypes. The segregating population was advanced to F 6:7 by the SSD method. The traits of plant height, mean pod length, number of seeds per pod, mean number of days to flowering, mean pod fiber content and pod yield were evaluated. Based on the distribution of lines in the groups by the Ward-MLM approach, variability was verified in the four populations. Furthermore, the early selection in F 2 did not limit the variability in the expression of genotypes with better agronomic performance. Thirty lines advanced by SSD for each population studied were sufficient to obtain superior genotypes. There was a relationship between the genealogy and groupings in F 6:7 , as evidenced by Group 1, G1, which contained the greatest number of lines from the crossing that were significantly enriched for their mean pod yield and Group 3, G3, which comprised the highest number of lines with a shorter plant type. These two traits, respectively, are the first and second most important traits for group stratification.

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Genetic control on morphoagzronomic traits in snap bean

Abstract: Five divergent snap bean accessions from the vegetables germplasm bank at UENF and their ten diallel hybrids were evaluated to inheritance on five morphoagronomic traits using Hayman´s methodology (1954

Cited by 11 publications

References 7 publications

Combining ability of tropical and temperate inbred lines of popcorn

Combining ability of tropical and temperate inbred lines of popcorn

Combining ability and heterosis in common bean cultivars

Association between advanced generations and genealogy in inbred lines of snap bean by the Ward-Modified Location Model

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