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Selecting tropical wheat genotypes through combining ability analysis.
Silva, Caique Machado E; Nardino, Maicon; Mezzomo, Henrique C; Casagrande, Cleiton Renato; Lima, Gabriel W; Signorini, Victor S; Freitas, Davi S DE; Batista, Cláudio V; Reis, Edésio F Dos; Bhering, Leonardo L; Oliveira, Aluízio B DE.
Afiliação
  • Silva CME; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Nardino M; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Mezzomo HC; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Casagrande CR; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Lima GW; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Signorini VS; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Freitas DS; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Batista CV; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Reis EFD; Programa de Pós-Graduação em Agronomia, Universidade Federal de Jataí, BR 364, Km 195, Setor Parque Industrial, 75801-615 Jataí, GO, Brazil.
  • Bhering LL; Universidade Federal de Viçosa, Departamento de Biologia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
  • Oliveira AB; Universidade Federal de Viçosa, Departamento de Agronomia, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil.
An Acad Bras Cienc ; 95(suppl 2): e20220760, 2023.
Article em En | MEDLINE | ID: mdl-38126518
ABSTRACT
The selection of parents to originate promising base populations, as well as the knowledge of the gene effects controlling agronomic traits by means of diallel, are useful to drive genetic gains in Brazilian tropical wheat breeding programs. The goals of this study were to select tropical wheat parents with a high frequency of favorable alleles and segregating populations with high potential to originate superior progenies through partial diallel analysis. Thus, 14 parents were divided in two groups and crossed in a 7 × 7 partial diallel scheme to originate 49 F1 combinations. After obtaining F2 generation, the populations and the parents were evaluated in the field in the summer of 2021. Days for heading, plant height, rust and yellow spot resistance, and grain yield were evaluated. The data were subjected to partial diallel analysis. There were significant effects of general combining ability for all traits. The specific combining ability effect was significant for days for heading and plant height. The additive gene effects were predominant over the non-additive ones. The parents with the highest frequency of favorable alleles for the traits evaluated were selected in each group. Four populations with high genetic potential to originate superior progenies were selected.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Basidiomycota / Triticum Idioma: En Ano de publicação: 2023 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Basidiomycota / Triticum Idioma: En Ano de publicação: 2023 Tipo de documento: Article