Research Article

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08/17/2017
Capsicum; Colletotrichum; Genotype; Plant breeding; Plant Immunity; Selection, Genetic; Selective breeding

Anthracnose is among the major diseases of the Capsicum culture. It is caused by different species of the genus Colletotrichum, which may result in major damages to the cultivation of this genus. Studies aiming to search for cultivars resistant to diseases are essential to reduce financial and agricultural losses. The objective of this study was to evaluate the correlation between the ... more

A.C. Maracahipes; J.W.S. Correa; P.E. Teodoro; K.L. Araújo; M.A.A. Barelli; L.G. Neves
08/17/2017
Capsicum; Colletotrichum; Genotype; Plant breeding; Plant Immunity; Selection, Genetic; Selective breeding

Anthracnose is among the major diseases of the Capsicum culture. It is caused by different species of the genus Colletotrichum, which may result in major damages to the cultivation of this genus. Studies aiming to search for cultivars resistant to diseases are essential to reduce financial and agricultural losses. The objective of this study was to evaluate the correlation between the ... more

A.C. Maracahipes; J.W.S. Correa; P.E. Teodoro; K.L. Araújo; M.A.A. Barelli; L.G. Neves
08/17/2017
Edible Grain; Genotype; Inbreeding; Models, Genetic; Plant breeding; Quantitative Trait, Heritable; Selection, Genetic; Selective breeding; Vigna

The aim of this study was to estimate the genotypic gain with simultaneous selection of production, nutrition, and culinary traits in cowpea crosses and backcrosses and to compare different selection indexes. Eleven cowpea populations were evaluated in a randomized complete block design with four replications. Fourteen traits were evaluated, and the following parameters were estimated: ... more

D.G. Oliveira; M.M. Rocha; K.J. Damasceno-Silva; F.V. Sá; L.R.L. Lima; M.D.V. Resende
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Genotype; Plant breeding; Quantitative Trait, Heritable; Selection, Genetic; Selective breeding; Soybeans

Defining selection criteria is important to obtain promising genotypes in a breeding program. The objective of this study was to estimate genetic parameters for agronomic traits and to perform soybean line selection using selection indices. The experiment was conducted at an experimental area located at Capim Branco farm, belonging to the Federal University of Uberlândia. A total of 37 soybean ... more

F.G. Teixeira; O.T. Hamawaki; A.P.O. Nogueira; R.L. Hamawaki; G.L. Jorge; C.L. Hamawaki; B.Q.V. Machado; A.J.O. Santana
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The aim of this study was to evaluate repeated measures over the years to estimate repeatability coefficient and the number of the optimum measure to select superior genotypes in Annona muricata L. The fruit production was evaluated over 16 years in 71 genotypes without an experimental design. The estimation of variance components and the prediction of the permanent phenotypic value were ... more

C.F.B. Sánchez; R.S. Alves; A.D.P. Garcia; P.E. Teodoro; L.A. Peixoto; L.A. Silva; L.L. Bhering; M.D.V. Resende
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Biplot analysis has often been used to recommend genotypes from different crops in the presence of the genotype x environment interaction (GxE). The objective of this study was to verify the association between the AMMI and GGE biplot methods and to select soybean genotypes that simultaneously meet high grain yield and stability to the environments belonging to the Edaphoclimatic Region 402, ... more

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This study aimed to identify Capsicum genotypes with resistance to bacterial spot (BS), anthracnose and Pepper yellow mosaic virus (PepYMV). Fifty-four genotypes of Capsicum spp were evaluated. Resistance reaction against BS was evaluated using three replicates, testing hypersensitivity and quantitative resistance in leaves. After evaluation, inoculated leaves were detached from the plants, ... more

C.S. Bento; A.G. de Souza; C.P. Sudré; S. Pimenta; R. Rodrigues
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Cotton Fiber; Genotype; Gossypium; Models, Genetic; Neural Networks, Computer; Plant breeding; Quantitative Trait, Heritable; Selection, Genetic; Selective breeding

Breeding programs currently use statistical analysis to assist in the identification of superior genotypes at various stages of a cultivar's development. Differently from these analyses, the computational intelligence approach has been little explored in genetic improvement of cotton. Thus, this study was carried out with the objective of presenting the use of artificial neural networks as ... more

E.G.Silva Júnior; D.B.O. Cardoso; M.C. Reis; A.F.O. Nascimento; D.I. Bortolin; M.R. Martins; L.B. Sousa
03/08/2017
Chimera; Fragaria; Fruit; Genotype; Phenotype; Plant breeding; Polyploidy; Selective breeding

The strawberry (Fragaria x ananassa Dutch.), is the only vegetable belonging to the rosacea family. All strawberry species have now emerged from wild species and belong to the genus Fragaria, being that this genus presents more than 45 described species, and only 11 are considered natural species. Due to the octoploid nature of strawberry and its variability after hybridization, selecting one ... more

S.D. Vieira; D.C. de Souza; I.A. Martins; G.H.M.R. Ribeiro; L.V. Resende; A.K.L. Ferraz; A.G. Galvão; J.T.V. de Resende
09/27/2017
Edible Grain; Models, Genetic; Plant breeding; Quantitative Trait, Heritable; Selection, Genetic; Selective breeding; Zea mays

Selection indices commonly utilize economic weights, which become arbitrary genetic gains. In popcorn, this is even more evident due to the negative correlation between the main characteristics of economic importance - grain yield and popping expansion. As an option in the use of classical biometrics as a selection index, the optimal procedure restricted maximum likelihood/best linear unbiased ... more

C. Vittorazzi; A.T.Amaral Júnior; A.G. Guimarães; A.P. Viana; F.H.L. Silva; G.F. Pena; R.F. Daher; I.F.S. Gerhardt; G.H.F. Oliveira; M.G. Pereira

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