Adaptabilidade e estabilidade de genótipos de feijoeiro-comum com grãos tipo carioca na Região Central do Brasil

Pereira, H. S.; Melo, L. C.; Faria, L. C. de; Peloso, M. J. Del; Costa, J. G. C. da; Rava, C. A.; Wendland, A.

doi:10.1590/s0100-204x2009000100005

Cited by 59 publications

(82 citation statements)

References 12 publications

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“…This significant environmental variation induces pronounced interactions with genotypes × environments (G×E), mainly regarding the grain yield characteristic. This fact has been confirmed by several studies conducted on the common bean plant in Brazil [1][2][3][4][5][6].…”

Section: Introductionsupporting

confidence: 55%

Decomposition of the interaction of common black bean group genotypes with the environment

Torga¹,

Melo²,

Pereira³

et al. 2013

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The purpose of this paper was to assess which environmental factor(s) (location, sowing season or years) in the common black bean genotypes interaction was more expressive and to verify the existence of genotypes with broad and/or specific adaptations to sowing season. Data of grain yield of thirteen genotypes were tested in twelve trials of value of cultivation and use during 2003 and 2004 in the south-central region of Brazil. Analyses of variance were performed with the decomposition of genotypes × environments interaction, which allowed a partial isolation of factors, and subsequently, eight trials were used which allowed a complete isolation of factors. The most important interactions were genotypes × years (R 2 = 2.5%) and genotypes × locations (R 2 = 1.9%), while genotypes × sowing seasons was the least important (R 2 = 1.4%). Thus, it is more important to evaluate the genotypes in different locations and years than at different seasons. Most genotypes showed wide adaptation, but some lines showed strong specific adaptation.

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Section: Introductionsupporting

confidence: 55%

Decomposition of the interaction of common black bean group genotypes with the environment

Torga¹,

Melo²,

Pereira³

et al. 2013

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“…A ocorrência de interação genótipo x ambiente para produtividade de grãos e arquitetura de plantas na cultura do feijoeiro tem sido frequentemente relatada na literatura (Collicchio et al, 1997;Oliveira et al, 2006;Moreto et al, 2007;Pereira et al, 2009).…”

Section: Resultsunclassified

Potencial de caracteres na avaliação da arquitetura de plantas de feijão

Moura¹,

Carneiro²,

Carneiro³

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi identificar indicadores efetivos da arquitetura de plantas em feijoeiro, para subsidiar, ou substituir, a avaliação por notas. Trinta e seis linhagens de feijão foram avaliadas quanto aos principais caracteres relacionados à arquitetura de plantas e a caracteres agronômicos, em duas safras. Os experimentos foram realizados em blocos ao acaso, com três repetições, em Coimbra, MG. A análise de trilha indicou que o ângulo de inserção dos ramos, a altura das plantas na colheita e o diâmetro do hipocótilo foram os principais caracteres determinantes da arquitetura de plantas do feijoeiro. O diâmetro do hipocótilo esteve fortemente associado com a nota de arquitetura e possibilitou elevada acurácia e precisão de mensuração. Essa característica é facilmente mensurada e é indicador efetivo da arquitetura de plantas do feijoeiro.Termos para indexação: altura de inserção, colheita mecanizada, diâmetro do hipocótilo, hábito de crescimento, plantas eretas, seleção simultânea. Potential of characters for evaluating common bean plant architectureAbstract -The objective of this work was to identify effective indicators of plant architecture in common bean, to subsidize or replace the evaluation by scores. Thirty-six common bean lines were evaluated regarding the main characters related to plant architecture and agronomic traits, in two harvest seasons. The experiments were carried out in a randomized complete block design with three replicates in Coimbra, MG, Brazil. Path analysis showed that the insertion angle of branches, plant height at harvest, and hypocotyl diameter were the main determinants of plant architecture of common bean. Hypocotyl diameter was strongly related to the architecture score, and allowed high accuracy and precision in measurement. This trait is easily measured and is an effective indicator of bean plant architecture.

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“…That way it is possible to identify the lines with greatest adaptability, stability, and yield, i.e., lines that are in keeping with the mean value of the environment, or better, that always perform above the mean value. Countless studies have already been performed for the purpose of identifying common bean lines/cultivars that are more adapted and stable (Pereira et al 2009, Rocha et al 2010). …”

Section: Introductionmentioning

confidence: 99%

Implications of predictable and unpredictable environmental factors in common bean VCU trials in Minas Gerais

Lima

Ramalho

Abreu

et al. 2014

Crop Breed. Appl. Biotechnol.

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-The aim of this study was to estimate the relative contribution of predictable and unpredictable environmental variations to the lines x environments interaction and verify if it is possible to reduce the number of evaluation environments of the Value for Cultivation and Use Trials (VCU) conducted in Minas Gerais, Brazil. We used grain yield data from 166 VCU trials of common bean conducted in the state from 2002 to 2012. Individual and joint analyses of variance of the environments were carried out for each twoyear period and the contribution of each source of variation to total variation was estimated. Subsequently, ecovalence was used, and joint analyses of variance were made considering different numbers of environments by means of resampling. The source of variation that most contributes to the interaction is location. Reduction in the number of environments in the VCU trials is not a good strategy for recommendation of cultivars in Minas Gerais.

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Adaptabilidade e estabilidade de genótipos de feijoeiro-comum com grãos tipo carioca na Região Central do Brasil

Cited by 59 publications

References 12 publications

Decomposition of the interaction of common black bean group genotypes with the environment

Decomposition of the interaction of common black bean group genotypes with the environment

Potencial de caracteres na avaliação da arquitetura de plantas de feijão

Implications of predictable and unpredictable environmental factors in common bean VCU trials in Minas Gerais

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