Stabilitas Hasil Jagung Hibrida Silang Tunggal

Genotype x environment interaction is of major concern to the plant breeder in developing new varieties. The present research objective was to evaluate the agronomic performance and yield stability of hybrid maize in eight locations during dry season. A randomize block design with three replications was applied to the experiment in each location. The combined analyses of variance showed that hybrid x location interaction effects were highly significant for all characters, except for number of rows per ear. Hybrid test Hybk-03 showed the highest grain yield in all locations, except in Maros and in Pandu, and did significantly higher than both check varieties in Bajeng, Muneng, Sleman and Bligo. There was no hybrid indicating stable yield in all locations based on AMMI 2 and Biplot analyses, but five hybrids were indicating specific adaptation. The specific hybrids adaptation was as follow: Hybk-02 in Bajeng, Hybk-03 in Bajeng and in Bligo, Hybk-09 in Bajeng and in Sleman, DK 3 and Bima 2 in Bajeng and in Pandu