Research Article

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04/27/2016
Bayes factor; Genotype x environment interaction; Informative prior; Phaseolus vulgaris L.

This study used Bayesian inference to investigate the genotype x environment interaction in common bean grown in Mato Grosso do Sul State, and it also evaluated the efficiency of using informative and minimally informative a priori distributions. Six trials were conducted in randomized blocks, and the grain yield of 13 common bean genotypes was assessed. To represent the ... more

A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; L.M.A. Barroso; M. Nascimento; A. Santos; F.E. Torres; A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; L.M.A. Barroso; M. Nascimento; A. Santos; F.E. Torres; A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; L.M.A. Barroso; M. Nascimento; A. Santos; F.E. Torres
05/09/2016
Antinutrients; Bean; Nutrients; Phaseolus vulgaris L.; Protein digestibility

The bean represents the main source of proteins for the low income populations, although the digestibility of those proteins is relatively low. Consequently, the programs of plant genetic breeding have been working on the search for new lines with higher protein levels. Thus, with the purpose of supplying information to the researchers, in this study, 21 bean (Phaseolus vulgaris ... more

F.R. Mesquita; M.I.A. Silva; A.D. Corrêa; F.R. Mesquita; M.I.A. Silva; A.D. Corrêa
04/28/2016
Artificial neural networks; Eberhart and Russell method; Genotype x environment interaction; Phaseolus vulgaris L.

Artificial neural networks have been used for various purposes in plant breeding, including use in the investigation of genotype x environment interactions. The aim of this study was to use artificial neural networks in the selection of common bean genotypes with high phenotypic adaptability and stability, and to verify their consistency with the Eberhart and Russell method. Six trials ... more

A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; L.M.A. Barroso; M. Nascimento; A. Santos; F.E. Torres; A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; L.M.A. Barroso; M. Nascimento; A. Santos; F.E. Torres
09/02/2016
Genotype-environment interaction; Natural selection; Phaseolus vulgaris L.; Sampling effect

Grain yield is strongly influenced by the environment, has polygenic and complex inheritance, and is a key trait in the selection and recommendation of cultivars. Breeding programs should efficiently explore the genetic variability resulting from crosses by selecting the most appropriate method for breeding in segregating populations. The goal of this study was to evaluate and compare the ... more

V.A.Pontes Júnior; P.G.S. Melo; H.S. Pereira; L.C. Melo; V.A.Pontes Júnior; P.G.S. Melo; H.S. Pereira; L.C. Melo
08/29/2016
diallel analysis; Grain yield; Phaseolus vulgaris L.; Plant architecture

In this study, conducted in two different seasons, we aimed to choose parents to obtain promising segregating populations for the extraction of black bean (Phaseolus vulgaris L.) lines that are superior in terms of disease resistance, plant architecture, and grain yield. Twelve parents were arranged in two groups to compose a partial diallel in a 5 x 7 scheme. Group 1 was ... more

L.M. Moura; P.C.S. Carneiro; N.M. Vale; L.D. Barili; L.C. Silva; J.E.S. Carneiro; C.D. Cruz; L.M. Moura; P.C.S. Carneiro; N.M. Vale; L.D. Barili; L.C. Silva; J.E.S. Carneiro; C.D. Cruz
08/05/2016
Agronomic traits; Bi-segmented regression; Cultivars; Genetic gain; Phaseolus vulgaris L.

We aimed to evaluate 40 common bean cultivars recommended by various Brazilian research institutions between 1970 and 2013 and estimate the genetic progress obtained for grain yield and other agronomic traits. Additionally, we proposed a bi-segmented nonlinear regression model to infer the year in which breeding began to show significant gains in Brazil. The experiment was carried out in ... more

L.D. Barili; N.M. Vale; L.M. Moura; R.G. Paula; F.F. Silva; J.E.S. Carneiro; L.D. Barili; N.M. Vale; L.M. Moura; R.G. Paula; F.F. Silva; J.E.S. Carneiro
08/05/2016
Genotype x environment interaction; Multivariate analysis; Phaseolus vulgaris L.

Recently, the genotype plus genotype x environment interaction (GGE) biplot methodology has been used to investigate genotype x environment interactions in several crop species, but has not been applied to the common bean (Phaseolus vulgaris L.) crop in Brazil. The aim of this study was to identify common bean genotypes that exhibit high grain yield and stability in the State of ... more

A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; A. Santos; F.E. Torres; A.M. Corrêa; P.E. Teodoro; M.C. Gonçalves; A. Santos; F.E. Torres
09/22/2015
Cytogenetics; Meiosis; Plant breeding; Pollen viability; X Triticosecale Wittmack

Triticale (X Triticosecale Wittmack) is an intergeneric hybrid derived from a cross between wheat and rye. As a newly created allopolyploid, the plant shows instabilities during the meiotic process, which may result in the loss of fertility. This genomic instability has hindered the success of triticale-breeding programs. Therefore, strategies should be developed to obtain stable ... more

R.M. Giacomin; R. Assis; S.P. Brammer; N. Junior; P.R. Da-Silva
12/11/2015
Characterization; Germplasm; Groundnut; interspecific hybrid; Pollen viability; Wild species

The primary gene pool of the cultivated peanut (Arachis hypogaea L., allotetraploid AABB) is very narrow for some important characteristics, such as resistance to pests and diseases. However, the Arachis wild diploid species, particularly those from the section Arachis, still have these characteristics. To improve peanut crops, genes from the wild species can be ... more

A.P. Fávero; J.G. Pádua; T.S. Costa; M.A. Gimenes; I.J. Godoy; M.C. Moretzsohn; M.D. Michelotto