Al-Qadisiyah Journal For Agriculture Sciences (Dec 2024)

Stability Analysis and Selection of Maize (Zea mays L.) Genotypes Using AMMI and GGE Biplot

  • Gemechu Asefa,
  • Temesgen Chibsa,
  • Desalegn Chalchisa,
  • Beyene Abebebe,
  • Tolera Keno,
  • Sara Oli,
  • Lemi Yadesa,
  • Bitew Tilahun,
  • Belay Garoma,
  • Yaregal Damtie,
  • Yednikachew Marid,
  • Mamud Aman,
  • Megersa Mengesha,
  • Zenebech Teshome,
  • Bedilu Goben

DOI
https://doi.org/10.33794/qjas.2024.154105.1188
Journal volume & issue
Vol. 14, no. 2
pp. 44 – 58

Abstract

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Genotype evaluation for stability and high yielding in maize is an important factor for boosting productivity and sustainability of maize production. A total of 25 maize genotypes were evaluated over six environments namely Bako (BK), Asosa (AS), Hawasa (HW), Pawe (PW), Jimma (JM) and Arsi-Negele (AN) using randomized complete block design with three replications during 2022 for the objective to identify superior and stable maize genotypes through stability analysis. Combined ANOVA revealed highly significant (p<0.01) difference among genotypes, environments, and genotype by environment interaction (GEI) for studied traits including grain yield (GY). The environment and GEI were found to be the most significant causes of the grain yield (GY) accounted 60.3% and 21.4 % of overall variation, respectively. The sum of the first two principal components of AMMI and GGE biplot explained the GEI variation for GY 74.5% and 78.1%, respectively. The AMMI and GGE biplot analysis depicted some genotypes G20, G25,G2, G17, G21, G13, G9 and G16 gave GY above the mean and less affected by GEI. The polygon view of the GGE biplot showed that the first mega-environment contains four environments BK, PW, AS, and HW with G20, the second and third environment contains JM and AN with G11 and G13 as winner genotypes (vertex), respectively. Environments AS, PW and BK identified as best environments based on its yield, discriminating and representativeness which were close to ideal environments. Genotypes G20 (3XM2110426) identified as ideal and G25 (BH520), G2 (3XM2110423), G17 (BH549), G21 (3XM2110422), G9 (3XM1900467) and G18 (3XM2110424) considered as desirable genotypes based on proximity to ideal genotypes. Therefore, G20 (3XM2110426) and G2 (3XM2110423) are recommended for verification and release after confirming the reliable performance of these genotypes through conducting multiyear evaluation and determining mega-environments for maize production in similar agro-ecologies of Ethiopia.

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