Simultaneous selection in sweet sorghum progenies by selection indices

Authors

  • Álvaro Eugênio Duarte de França Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Rua Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171‑900 Recife, PE
  • Rafael Augusto da Costa Parrella Embrapa Milho e Sorgo, Rodovia MG-424, Km 45, Zona Rural, CEP 35701-970 Sete Lagoas, MG
  • Vander Filipe de Souza Embrapa Milho e Sorgo, Rodovia MG-424, Km 45, Zona Rural, CEP 35701-970 Sete Lagoas, MG
  • Gerson Quirino Bastos Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Rua Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171‑900 Recife, PE
  • José Airton Rodrigues Nunes Universidade Federal de Lavras, Departamento de Biologia, Campus Universitário, Caixa Postal 3037, CEP 37200‑000 Lavras, MG
  • Robert Eugene Schaffert Embrapa Milho e Sorgo, Rodovia MG-424, Km 45, Zona Rural, CEP 35701-970 Sete Lagoas, MG

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.23137

Keywords:

Sorghum bicolor, genetic gain, plant breeding

Abstract

The objective of this work was to compare the genetic gains obtained by different selection indices applied to various agronomic traits of sweet sorghum (Sorghum bicolor). Evaluations were carried out for 189 F5 progenies and seven controls, in an incomplete block design, with three replicates. The measured traits were green matter yield, content of total soluble solids, juice extraction, sucrose content in juice, and total soluble solids per hectare. The rank summation index of Mulamba and Mock (or index of ranks), standardized value summation index (or Z index), standardized by the mean index, and the modified standardized by the mean index were analyzed. The correlations and coincidence percentages in the progeny selections were high between the Z index, the standardized by the mean index, and the modified standardized by the mean index. Among the tested selection indices, the rank summation index of Mulamba and Mock was the less efficient. The simultaneous selection of sweet sorghum progenies allows expressive genetic gains for all measured traits.

Author Biographies

Álvaro Eugênio Duarte de França, Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Rua Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171‑900 Recife, PE

http://lattes.cnpq.br/8140155861098222

Rafael Augusto da Costa Parrella, Embrapa Milho e Sorgo, Rodovia MG-424, Km 45, Zona Rural, CEP 35701-970 Sete Lagoas, MG

http://lattes.cnpq.br/8564338440779903

Vander Filipe de Souza, Embrapa Milho e Sorgo, Rodovia MG-424, Km 45, Zona Rural, CEP 35701-970 Sete Lagoas, MG

http://lattes.cnpq.br/9233464052059239

Gerson Quirino Bastos, Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Rua Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171‑900 Recife, PE

http://lattes.cnpq.br/7783346464824345

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Published

2016-12-02

How to Cite

França, Álvaro E. D. de, Parrella, R. A. da C., Souza, V. F. de, Bastos, G. Q., Nunes, J. A. R., & Schaffert, R. E. (2016). Simultaneous selection in sweet sorghum progenies by selection indices. Pesquisa Agropecuaria Brasileira, 51(10), 1737–1743. https://doi.org/10.1590/S1678-3921.pab2016.v51.23137

Issue

v.51, n.10, out. 2016

Section

GENETICS