Molecular Plant Breeding 2016, Vol.7, No.02, 1
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model and the coefficient of determination is greater
than regression model higher. Using this method,
Terra and Pomar cultivars were with the highest
coefficient of variation as stable genotypes introduced. The
regression models Hanson model in this way, how much
D
i
lower the deviation is less stable and more sustainable
cultivars, The Terra and Pomar genotypes were stable
with the lowest varieties. And according to the
average performance Alisson and Fabiola genotypes
can be introduced as stable genotypes. By definition,
Euroflor and Almanzor genotypes were introduced
unstable genotypes in these models (Table 3).
Table 3 Finlay and Wilkinson regression parameters of stability for sunflower cultivars investigated
Genotype
Average yield
Regression coefficient(
i
b
)
Coefficient of determination(
2
i
R
)
Henson
Alexandra
3248.66
0.97
0.96
1612.87
Alisson
3060.72
1.1
0.99
1591.63
Almanzor
3107.53
1.15
0.89
1706.55
Altesse
3108.83
0.97
0.96
1614.5
Arena
3147.98
1.24
0.98
1609.1
Azargol
3935.05
0.95
0.87
1688.54
Brocar
3133.05
0.77
0.998
1587.11
Euroflor
2814.75
0.84
0.76
1754.59
Fabiola
3209.4
1.2
0.994
1592.15
Joana
2619.5
0.9
0.95
1613.4
Mas96a
2684.31
0.87
0.985
1595.09
Melody
3174.29
1.05
0.95
1629.6
Nkarmoni
3273.14
0.83
0.987
1593.07
Pomar
2906.59
1.16
0.999
1587.25
Terra
2505.08
0.9
0.9997
1586.42
Vidoc
2983.35
1.0006
0.98
1599.27
2.3 The effect of genotype × environment
interaction using multivariate AMMI
Biplot diagram AMMI1 Almanzor, Altesse and
Euroflor genotypes also Sari and Karaj environments
were with high IPCA1, In other words, the greatest
impact in the creation of their interaction. Vertical line
in the middle of biplot out all data passes. Genotypes
and locations right out of their line of higher
performance, So Nkarmoni, Arena, Alexandra, Vidoc,
Altesse, Melody, Pomar, Mas96a, Joana, Fabiola
genotypes were respectively the highest to the lowest
mean performance is above average, And were the
right of the vertical line in the middle biplot (Figure
1).
In the chart biplot AMMI2 Euroflor, Alisson, Mas96a,
Fabiola genotypes had stable genotypes. Terra cultivar
was observed lowest performance in the biplot. Also
among the places, Birjand showed high performance
in the environment. Karaj locations had the lowest
performance. As well as the in Birjand location is
cultivar Fabiola and in Isfahan place in the best
cultivar is Nkarmoni and to Karaj place is cultivar
Joana and to Sari place is cultivar Pomar, respectively
Stable component in the survey varieties for grain
yield (Figure 2).
Figure 1 Biplot average yield of sunflower, the environment
and the values of the first main component (AMMI1).(S1 to S4,
respectively, Birjand, Isfahan, Karaj and Sari G1 to G16
varieties is Alexandra, Alisson, Almanzor, Altesse, Arena,
Azargol, Brocar, Euroflor, Fabiola, Joana, Mas96a, Melody,
Nkarmoni, Pomar, Terra and Vidoc )
