Abstract
In order to evaluate yield stability of twenty genotypes of bread wheat, an experiment was conducted in randomized complete block design (RCBD) with three replications under irrigated and rainfed conditions in Razi University of Kermanshah for three years (2011-2013). Combined analysis of variance showed highly significant differences for the GEI. Stability determined by AMMI analysis indicated that the first two AMMI model (AMMI1-AMMI2) were highly significant (P<0.01). The GEI was three times higher than that of the genotype effect. The results of Biplot AMMI2 showed that, genotypes WC-47359, WC-47472, WC-4611, WC-47388 and WC-47403 had general adaptability. Based on the ASV and GSI, the genotypes number WC-47403 and WC-47472 revealed the highest stability. GGE biplot analysis of yield displaying main effect G and GEI justified 57.5 percent of the total variation. The first two principal components (PC1 and PC2) were used to create a 2-dimensional GGE biplot and explained 34.3, 23.2 of GGE sum of squares (SS), respectively. Genotypes WC-47403, PISHGAM2 exhibited the highest mean yield and stability. Based on the results obtained the best genotypes were WC-47403, PISHGAM2, WC-4968, WC-47472 and WC-47528 for breeding programs.
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Claims 11
Claim · model-written summary
Genotype-by-environment interaction differences were highly significant among bread wheat genotypes.
- Taxon
- bread wheat
Triticum aestivumt0 - Outcome
- differences for the GEIe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e1“Combined analysis of variance showed highly significant differences for the GEI”
Claim · model-written summary
The GEI variance was three times higher than the genotype effect.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- GEIe2
- Direction
- highere2
- Value
- three timese2
- Comparator
- genotype effecte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e2“The GEI was three times higher than that of the genotype effect”
Claim · model-written summary
The first two AMMI models (AMMI1-AMMI2) were highly significant (P<0.01).
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- first two AMMI model (AMMI1-AMMI2)e3
- Value
- P<0.01e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e3“Stability determined by AMMI analysis indicated that the first two AMMI model (AMMI1-AMMI2) were highly significant (P<0.01)”
Claim · model-written summary
Genotypes WC-47359, WC-47472 and WC-4611 had general adaptability in the Biplot AMMI2 analysis.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WC-47359, WC-47472, WC-4611e4
- Outcome
- general adaptabilitye4
- Qualifier
- Biplot AMMI2e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e4“The results of Biplot AMMI2 showed that, genotypes WC-47359, WC-47472, WC-4611, WC-47388 and WC-47403 had general adaptability”
Claim · model-written summary
Genotypes WC-47388 and WC-47403 had general adaptability in the Biplot AMMI2 analysis.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WC-47388 and WC-47403e4
- Outcome
- general adaptabilitye4
- Qualifier
- Biplot AMMI2e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e4“The results of Biplot AMMI2 showed that, genotypes WC-47359, WC-47472, WC-4611, WC-47388 and WC-47403 had general adaptability”
Claim · model-written summary
Genotypes WC-47403 and WC-47472 showed the highest stability based on ASV and GSI.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WC-47403 and WC-47472e5
- Outcome
- stabilitye5
- Direction
- higheste5
- Qualifier
- Based on the ASV and GSIe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e5“Based on the ASV and GSI, the genotypes number WC-47403 and WC-47472 revealed the highest stability”
Claim · model-written summary
The GGE biplot analysis of yield explained 57.5 percent of the total variation.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- total variatione6
- Value
- 57.5 percente6
- Qualifier
- main effect G and GEIe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e6“GGE biplot analysis of yield displaying main effect G and GEI justified 57.5 percent of the total variation”
Claim · model-written summary
PC1 of the GGE biplot explained 34.3 of the GGE sum of squares.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- GGE sum of squares (SS)e7
- Value
- 34.3e7
- Qualifier
- PC1e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e7“The first two principal components (PC1 and PC2) were used to create a 2-dimensional GGE biplot and explained 34.3, 23.2 of GGE sum of squares (SS), respectively”
Claim · model-written summary
PC2 of the GGE biplot explained 23.2 of the GGE sum of squares.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- GGE sum of squares (SS)e7
- Value
- 23.2e7
- Qualifier
- PC2e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e7“The first two principal components (PC1 and PC2) were used to create a 2-dimensional GGE biplot and explained 34.3, 23.2 of GGE sum of squares (SS), respectively”
Claim · model-written summary
Genotypes WC-47403 and PISHGAM2 had the highest mean yield and stability.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WC-47403, PISHGAM2e7
- Outcome
- mean yield and stabilitye7
- Direction
- higheste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e7“Genotypes WC-47403, PISHGAM2 exhibited the highest mean yield and stability”
Claim · model-written summary
The best genotypes WC-47403, PISHGAM2, WC-4968, WC-47472 and WC-47528 are recommended for breeding programs.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- WC-47403, PISHGAM2, WC-4968, WC-47472 and WC-47528e7
- Outcome
- best genotypese7
- Qualifier
- for breeding programse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stability analysis of bread wheat landraces and lines”
e7“Based on the results obtained the best genotypes were WC-47403, PISHGAM2, WC-4968, WC-47472 and WC-47528 for breeding programs”