Genotype – environment interaction for seed yield of maize hybrids and lines using the AMMI model

Authors

  • Jan Bocianowski Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
  • Kamila Nowosad Department of Genetics, Plant Breeding and Seed Production, Wrocław University of Environmental and Life Sciences, Grunwaldzki 24A, 53-363 Wrocław, Poland
  • Agnieszka Tomkowiak Department of Genetics and Plant Breeding, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland

Keywords:

adaptability, AMMI, biplot, maize, seed yield, stability

Abstract

The objective of this study was to assess genotype by environment interaction for seed yield in maize hybrids and
lines growing in Western Poland using the additive main effects and multiplicative interaction model (AMMI). The
study comprised 32 maize genotypes (13 F1 hybrids and their 19 parental lines), evaluated in four environments
(two locations in two years). Seed yield ranged from 2.50 t/ha (S311 in Łagiewniki 2013) to 18.31 t/ha (Popis in
Łagiewniki 2014), with an average of 8.41 t/ha. The Popis hybrid had the highest average seed yield (15.53 t/ha),
and the S56125A line had the lowest (3.65 t/ha). The average seed yield per environments also varied from 6.60
t/ha in Łagiewniki 2013, to 9.95 t/ha in Smolice 2013. AMMI analyses revealed significant genotype (G) and environmental
(E) effects as well as GE interaction effect with respect to seed yield. The analysis of variance explained
14.59% of the total seed yield variation by environment, 77.41% by differences between genotypes, 6.50% by GE
interaction, and 1.50% by error. The Blask, Brda and Bejm hybrids are recommended for further inclusion in the
breeding program because of their stability and high averages of seed yields.

Downloads

Published

2019-10-29

Issue

Vol. 64 No. 2 (2019)

Section

Articles

License

Copyright The corresponding author represents all the manuscript’s authors. Upon manuscript acceptance, copyright becomes held by Maydica, which adopts an open access publishing policy. Published articles can be retrieved from the Maydica web site free of charge for personal use, deposition into any departmental or institutional repository, or distribution for any commercial or non-commercial endeavor. Articles obtained from the web site may not be altered in any way without the permission of the Maydica editors. The corresponding author must obtain permission to reproduce figures, tables, or text from other copyrighted material.