Identification of Effective Indicators of Erect Plant Architecture in Dry Bean

Acquaah, George; Adams, M. W.; Kelly, James D.

doi:10.2135/cropsci1991.0011183x003100020004x

Cited by 30 publications

(29 citation statements)

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“…O maior efeito dessa variável em nota de arquitetura na colheita também foi via diâmetro do hipocótilo, para os dois anos de avaliação. De modo semelhante, Acquaah et al (1991) apontaram o diâmetro do hipocótilo e a altura da planta como os principais indicadores efetivos da arquitetura de planta no feijoeiro.…”

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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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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“…Because PA depends on the expression of several traits (Acquaah et al, 1991, Teixeira et al, 1999Kelly, 2000;Soltani et al, 2016), its control involves a large number of genes (Basset, 2004). In these cases, recurrent selection (RS, i.e., selection followed by recombination of the best individuals or progenies during successive cycles of selection) is the best approach for successful plant improvement Silva et al, 2010;Bernardo, 2014).…”

Section: Introductionmentioning

confidence: 99%

Genetic progress estimation strategy for upright common bean plants using recurrent selection

et al. 2017

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ABSTRACT. Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S 0 . The aim of the present study was to evaluate selection progress and investigate whether this progress varies with the number of selected progenies or the generation evaluated. In addition, the effect of RS for the upright (PA) trait on progeny grain yield (GY) was investigated. Data of progenies S 0:3 and S 0:4 of the fifth, eighth, and twelfth cycles were used. A combined analysis of variance was performed using the adjusted means of the 47 best progenies from each generation and cycle, using two control cultivars as reference. A joint analysis of the two generations used during the evaluation of progenies for the different cycles was also performed. The genetic progress (GP) was estimated by fitting a linear regression equation to the relationship between the adjusted mean of each cycle and the number of cycles. We found that RS was efficient and the estimated GP of the evaluated progenies was 4.5%. Based on the GY heritability estimates, in more advanced generation selection for GY can be successfully performed on progenies. Thus, the selection already done for PA in F 2 could be associated to the most productive progenies.

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“…Some morphological traits, such as plant height, internode number and length, hypocotyl diameter and length, number of pods on top, middle and bottom third of the stem, first pod insertion height, and number of pods on the main stem, are part of the major studies aimed at identifying the traits that best define the plant architecture of the common bean (Izquierdo and Hosfield, 1983;Nienhuis and Singh, 1986;Acquaah et al, 1991Acquaah et al, , 1992Kornegay et al, 1992;Brothers and Kelly, 1993). Plant height, hypocotyl diameter, pod distribution in the plant's midsection, and branch insertion angle have been given special consideration (Acquaah et al, 1991(Acquaah et al, , 1992.…”

Section: Introductionmentioning

confidence: 99%

“…Plant height, hypocotyl diameter, pod distribution in the plant's midsection, and branch insertion angle have been given special consideration (Acquaah et al, 1991(Acquaah et al, , 1992.…”

Section: Introductionmentioning

confidence: 99%

Genetic improvement of plant architecture in the common bean

Silva

Júnior²,

Carneiro³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. Knowledge of genetic control of plant architecture in the common bean can help breeders define the most adequate breeding strategy to optimize gains. We examined genetic control of plant architecture in the common bean by means of partial diallel crosses. Fourteen bean lines were crossed under a partial diallel scheme, in which group 1 was composed of 8 erect plant lines and group 2 of 6 cariocatype grain lines. The F 1 plants from the crosses and the 14 parents were evaluated during spring (March sowing) for the characteristics plant architecture score, hypocotyl diameter, mean plant height, and grain yield. The additive effects were found to predominate in the genetic control of plant architecture score and hypocotyl diameter. Thus, selection of more erect plants can be done in early generations. Heritability estimate in a wide sense was greater for hypocotyl diameter (0.81) than for plant architecture score (0.60), showing that the latter is a more complex characteristic than the former. Hypocotyl diameter has ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 12 (3): 3093-3102 (2013) V.M.P. Silva et al. 3094 the potential to be used in the selection of more erect plants, either by considering selection between and within families, or by combined or phenotypic recurrent selection. The reason for this is that the diameter measurements are taken from individual plants inside the plots.

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Identification of Effective Indicators of Erect Plant Architecture in Dry Bean

Cited by 30 publications

References 0 publications

Potencial de caracteres na avaliação da arquitetura de plantas de feijão

Potencial de caracteres na avaliação da arquitetura de plantas de feijão

Genetic progress estimation strategy for upright common bean plants using recurrent selection

Genetic improvement of plant architecture in the common bean

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