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Analysis of yield stability of barley (Hordeum vulgare L.) genotypes- using additive main effects and multiplicative interaction (AMMI) model
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Abstract: (4045 Views) |
| Significancet genotype environment (G E) interactions effects in a major constraint in evaluation and release of new cultivars. To achieve this goal and in order to evaluate and advance towards new high-yielding and stable/adaptable cultivars suitable for the temperate agro-ecological zone in Iran, a set of yield trials was conducted with 20 elite barley lines using a Randomized Complete Block Design (RCBD) with three
replicates at nine different experimental field stations during two successive years (1380-1382). Grain yield was studied and the results obtained from the combined analysis of variance revealed significance of all effects i.e. genotype, environment and genotype environment interactions. Genotypes mean showed that the entries
No. 9 (LB.Iran/Una8271//Gloria"S"/Come"s"-11M/3/Kavir) and No. 16 (L.131/Cerbel//Alger-Ceres/3/Gloria"s"-Copal"s") had the highest grain yield. To have a better interpretation of G × E interaction multivariate AMMI method was used, which resulted in five main principle components that explained 74.68% of the interaction mean square. Additionally, the genotypes No. 16 (L.131/Cerbel//Alger-Ceres/3/Gloria"s"-Copal"s") and
No. 17 (L.131/Cerbel//Alger-Ceres/3/Kavir) had the lowest IPC1 and IPC2 and the highest levels of stability. Using the results of biplot and AMMI analysis, parameters integrated with those of grain yield, the entries 9 and 16 were selected as candidates lines with both best performance and grain yield stability. |
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| Keywords: Genotype Environment Interaction, Barley, Grain yield, AMMI analysis, Temperate agro-ecological zone. |
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Full-Text [PDF 2438 kb]
(1348 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/02/28 | Accepted: 2015/02/28 | Published: 2015/02/28
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