Research Article

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Ecosystem; Genotype; Phenotype; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable; Selection, Genetic; Vigna

Estimating genetic parameters in plant breeding allows us to know the population potential for selecting and designing strategies that can maximize the achievement of superior genotypes. The objective of this study was to evaluate the genetic potential of a population of 20 cowpea genotypes by estimating genetic parameters and path analysis among the traits to guide the selection strategies. ... more

K.V. Lopes; P.E. Teodoro; F.A. Silva; M.T. Silva; R.L. Fernandes; T.C. Rodrigues; T.C. Faria; A.M. Corrêa
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Flowers; Genotype; Plant breeding; Plant Development; Polymorphism, Genetic; Quantitative Trait, Heritable; Selection, Genetic; Zea mays

The aims of this study were to assess the linear relationships between agronomic and nutritional traits and to identify promising traits for indirect selection in early and super-early maturing maize genotypes. Two trials were run in the 2009/2010 agricultural year, each consisting of a randomized block design with three replications. One trial was run on 36 early maturing maize genotypes and ... more

B.M. Alves; C. Filho
2017 May 31
Fabaceae; Genotype; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Desmanthus is a genus of forage legumes with high nutritional value, productive potential, and ability to obtain nitrogen in association with diazotrophic bacteria. The use of accurate techniques for genotype identification and characterization is essential for breeding programs. Morphological markers are widely used to know the genetic diversity and the molecular markers are fundamental in ... more

J.C. Costa; G.G.M. Fracetto; F.J.C. Fracetto; M.V.F. Santos; M.A.Lira Júnior
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Fungi; Microsatellite Repeats; Plant breeding; Plant Immunity; Polymorphism, Genetic; Quantitative Trait, Heritable; Zea mays

Knowledge of genetic diversity among genotypes and relationships among elite lines is of great importance for the development of breeding programs. Therefore, the objective of this study was to evaluate genetic variability based on the morphoagronomic and molecular characterization of 18 elite popcorn (Zea mays var. everta) lines to be used by Universidade Estadual de Maringá breeding programs ... more

J.F.Dos Santos; C.A. Mangolin; M.F.P.S. Machado; C.A. Scapim; W. Giordani; L.S.A. Gonçalves
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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
2017 Aug 17
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
2017 Aug 31
Alleles; Genotype; Hybridization, Genetic; Models, Genetic; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable; seeds; Zea mays

Genetic improvement is essential to achieve increments in maize (Zea mays L.) grain yield components. It may be obtained through crosses, which enable to exploit the effects of intervarietal heterosis, allelic complementarity, as well as gene actions and effects. This study estimated the components of variance and genetic parameters (REML/BLUP) of an intervarietal diallel to select and predict ... more

I.R. Carvalho; A.J. de Pelegrin; V.J. Szareski; M. Ferrari; T.C. da Rosa; T.S. Martins; N.L.Dos Santos; M. Nardino; V.Q. de Souza; A.C. de Oliveira; L.C. da Maia
2017 Sep 21
Alleles; Cotton Fiber; Genotype; Gossypium; Hybridization, Genetic; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Final cotton quality is of great importance, and it depends on intrinsic and extrinsic fiber characteristics. The objective of this study was to estimate general (GCA) and specific (SCA) combining abilities for technological fiber traits among six upland cotton genotypes and their fifteen hybrid combinations, as well as to determine the effective genetic effects in controlling the traits ... more

D.R. Queiroz; F.J.C. Farias; J.J.V. Cavalcanti; L.P. Carvalho; D.G. Neder; L.S.S. Souza; F.C. Farias; P.E. Teodoro
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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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