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Asian Journal of Plant Sciences

Year: 2008 | Volume: 7 | Issue: 2 | Page No.: 163-169
DOI: 10.3923/ajps.2008.163.169

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Authors


Solomon Admassu


Mandefro Nigussie


Habtamu Zelleke


Keywords


  • AMMI
  • maize
  • stability
  • Zea mays
  • cluster
Research Article

Genotype-Environment Interaction and Stability Analysis for Grain Yield of Maize (Zea mays L.) in Ethiopia

Solomon Admassu, Mandefro Nigussie and Habtamu Zelleke
Fifteen maize genotypes were tested at nine different locations in 2005 under rainfed condition to determine stable maize genotypes for grain yield and determine genotypes with high yield and form homogenous grouping of environments and genotypes. The experiment was conducted using Randomized Complete Block Design with three replications. There was considerable variation among genotypes and environments for grain yield. Stability was estimated using the Additive Main Effects and Multiplicative Interactions (AMMI). Based on the stability analysis, genotypes 30H83, BH-540, Ambo Synth-1, AMH-800 and BHQP-543 were found to be stable for grain yield. The first two Interaction Principal Component axis (IPCA1 and IPCA2) were significant (p<0.01) and cumulatively contributed 70.27% of the total genotype by environment interaction. The coefficient of determination (R2) for genotypes 30H83 was as high as 0.92, confirming its high predictability to stability. Among the genotypes, the highest grain yield was obtained from genotype 30H83 and BH-541 (8.98 and 8.05 t ha-1) across environments. Clustering of AMMI-estimate values grouped genotypes in to four clusters and the environment in to three clusters. Environment Goffa was unique as it is grouped differently from all other environments.
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How to cite this article

Solomon Admassu, Mandefro Nigussie and Habtamu Zelleke, 2008. Genotype-Environment Interaction and Stability Analysis for Grain Yield of Maize (Zea mays L.) in Ethiopia. Asian Journal of Plant Sciences, 7: 163-169.

DOI: 10.3923/ajps.2008.163.169

URL: https://scialert.net/abstract/?doi=ajps.2008.163.169

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