Analysis of the stability for yield in maize (Zea mays) hybrids in the central Ecuadorian Coastal Region

Authors

  • Daniel Vera Aviles Universidad Técnica Estatal de Quevedo, Quevedo
  • Gabriel Liuba Delfini Universidad Técnica Estatal de Quevedo, Quevedo
  • Luis Godoy Montiel Universidad Técnica Estatal de Quevedo, Quevedo
  • Eduardo Díaz Ocampo Universidad Técnica Estatal de Quevedo, Quevedo
  • Freddy Sabando Ávila Universidad Técnica Estatal de Quevedo, Quevedo
  • Felipe Garcés Fiallos Universidad Técnica Estatal de Quevedo, Quevedo
  • Gary Meza Bone Universidad Técnica Estatal de Quevedo, Quevedo

DOI:

https://doi.org/10.17268/sci.agropecu.2013.03.07

Keywords:

Genotype, environment, stability, yield

Abstract

The objective of this study was to determine the stability of commercial and experimental maize hybrids in the Central Ecuadorian Coastal Region. During a period from december 2010 to april 2011 uniform trials of yield in four locations with contrasting environments were evaluated. The genetic material was constituted by five experimental hybrids and three commercial. The experimental design used was completely randomized blocks design with four replications; the experimental plots were two rows with a length of 5.0 m separated to 0.90 meters. The combined analysis of variance proposed by Eberhart and Russel was statistical significance as well as for genotype and for interaction. The average yield showed that between experimental hybrids two, (SM45 x SSD08)SV39 and (SM45 x SV15)SV39, were highlighted with averages higher than 7.0 t ha-1 whilst AG-003 was the highlighted commercial hybrid with a yield of 7.48 t ha-1. The best yields and environmental indexes were registered in the locations of Quevedo and Vinces, the lowest environmental indexes were for Balzar and Ventanas. In relation to the tendency of response of the outstanding genotypes in the four evaluation environments, it was particularly observed that genotypes are desirable by virtue of the outstanding results in both favorable and unfavorable environments.

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Received: 07/01/13

Accepted: 10/07/13

Corresponding author: E-mail: federic_net@hotmail.com (D. Vera)

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Published

2013-10-09

How to Cite

Vera Aviles, D., Liuba Delfini, G., Godoy Montiel, L., Díaz Ocampo, E., Sabando Ávila, F., Garcés Fiallos, F., & Meza Bone, G. (2013). Analysis of the stability for yield in maize (Zea mays) hybrids in the central Ecuadorian Coastal Region. Scientia Agropecuaria, 4(3), 211 - 218. https://doi.org/10.17268/sci.agropecu.2013.03.07

Issue

Vol. 4 No. 3 (2013): July - September

Section

Original Articles

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