Evaluation of the combining ability of S2 popcorn families using different testers

Authors

  • Rafael Reccanello Barreto Cooperativa Central de Pesquisa Agrícola
  • Carlos Alberto Scapim Universidade Estadual de Maringá
  • Antonio Teixeira do Amaral Júnior Universidade Estadual do Norte Fluminense Darci Ribeiro
  • Marcos de Araújo Rodovalho Universidade Estadual de Maringá
  • Rafael Augusto Vieira Universidade Estadual de Maringá
  • Adílson Ricken Schuelter Cooperativa Central de Pesquisa Agrícola

DOI:

https://doi.org/10.5433/1679-0359.2012v33n3p873

Keywords:

Topcross, Partial diallel, Fasoulas’s index, Hybrid performance.

Abstract

The objective of this work was to compare three testers for discrimination and evaluation of the combining ability of 49 S2 families, derived from the topcross popcorn hybrid IAC 125. Families were evaluated by their per se performance and their crosses with the testers BRS ANGELA, IAC125 and Line 3.3. The experiment was conducted in lattice design, in Maringá, PR, Brazil, during 2007/2008 cropping season. Genetic and phenotypic parameters was estimated for grain yield and popping expansion, and compared using the topcrosses between families and testers and the families per se. General and specific combining ability were estimated according the partial diallel model. Topcrosses heterosis was also evaluated, and the capacity of discriminating the families was compared among testers using the differential index from Fasoulas (1983). The tester line 3.3 was the most suitable to evaluate the S2 families in respect to grain yield and popping expansion.

Author Biographies

Rafael Reccanello Barreto, Cooperativa Central de Pesquisa Agrícola

Pesquisador da Cooperativa Central de Pesquisa Agrícola, Coodetec, Cascavel, PR.

Carlos Alberto Scapim, Universidade Estadual de Maringá

Prof. do Deptº de Agronomia, Universidade Estadual de Maringá,UEM. Maringá, PR.

Antonio Teixeira do Amaral Júnior, Universidade Estadual do Norte Fluminense Darci Ribeiro

Prof. da Universidade Estadual do Norte Fluminense Darcy Ribeiro, UENF, Parque Califórnia, CEP 28012-602, Campos dos Goytacazes, RJ,

Marcos de Araújo Rodovalho, Universidade Estadual de Maringá

Doutorando do Programa de Pós-Graduação em Agronomia da UEM, Maringá, PR.

Rafael Augusto Vieira, Universidade Estadual de Maringá

Mestrando do Programa de Pós-Graduação em Agronomia da UEM, Maringá, PR.

Adílson Ricken Schuelter, Cooperativa Central de Pesquisa Agrícola

Pesquisador da Cooperativa Central de Pesquisa Agrícola, Coodetec, Cascavel, PR.

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Published

2012-06-28

How to Cite

Barreto, R. R., Scapim, C. A., Amaral Júnior, A. T. do, Rodovalho, M. de A., Vieira, R. A., & Schuelter, A. R. (2012). Evaluation of the combining ability of S2 popcorn families using different testers. Semina: Ciências Agrárias, 33(3), 873–890. https://doi.org/10.5433/1679-0359.2012v33n3p873

Issue

Vol. 33 No. 3 (2012)

Section

Articles

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