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Submitted May 15, 2018
Published 2017-12-15

Artículos

Vol. 1 No. 2 (2017): Visión Antataura

Adaptability of 20 corn hybrids to agroclimatic conditions of the maize area of the Azuero Region, Panama, 2016.


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Vol. 1 Núm. 2 (2017): Visión Antataura
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DOI: ND

Published: 2017-12-15

How to Cite

Gordón M., R., Franco B., J., Núñez C., J., Sáez C., A. E., & Jaén V., J. (2017). Adaptability of 20 corn hybrids to agroclimatic conditions of the maize area of the Azuero Region, Panama, 2016. Visión Antataura, 1(2), 1–17. Retrieved from https://revistas.up.ac.pa/index.php/antataura/article/view/16

Abstract

In order to evaluate the adaptability and stability of different hybrids in the Azuero region, an experiment was planted in 10 locations. The genetic material of this trial consisted of three hybrids of White grain and 17 of yellow grain, for a total of 20 genotypes. The experimental design Alpha Látice 4 x 5 was used with three replicates. To the collected data, a combined analysis of variance was performed and the means were separated using the DMS. The environment captured 57.4% of the total sum of squares of the experiment, suggesting a high variability in the evaluated environments. The average yield was 6.76 t ha-1, but it was affected in some localities by the distribution of the rain and the type of soil. The analysis of variance showed highly significant differences among the different hybrids evaluated for grain yield. Of the evaluated cultivars, nine surpassed the general average, with hybrids of P-4039, X40K-176, P-3966 W and P-4226 with average yields exceeding 7.50 t ha-1. This group was followed by the group X40F-440, PAC-1290139, 2B-604, PAC-1290022 and ADV-9293 with means above the general average. The commercial control 30F-35 presented a yield of 6.60 tha-1, and it was exceeded by more than 17% by the hybrids of the first group. According to the scores of the first 2 axes of the Biplot GGE-SREG analysis, the most stable hybrids were P- 4039, X-40K176 and P-4226.

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