303
In order to determine similarity or distance between tested barley genotypes
based on macro- and microcontent, cluster analysis has been performed (Fig. 10.4).
The dendrogram illustrates that based on macro- and microcontent, barley genotypes are clearly grouped in four clusters. The first cluster is the smallest and is
consisted of three varieties (Hit, Izvor, and Petra). The similarity between Hit and
Petra varieties is based on zinc content. The second cluster is the biggest one and
contains 16 genotypes. Within the frame of this cluster, genotypes Line 1 and NS
565 are most similar; they are linked in a subgroup and have least distant unit (difference). Also, the least distant unit was obtained between the following genotypes:
Rex and Perun, Imeon and Zagorec (Bulgarian two-row varieties), Line 2 and Sajra,
Kuber and GK Judy, and Emon and Orfej (two-row cultivars with Bulgarian origin).
Table 10.13 Factor loading
of tested barley genotypes by
main components
Genotype
PC1
PC2
Hit
2.244
1.108
Izvor
1.054
−2.395
Egej
0.186
−0.201
Line 1
0.094
0.744
Line 2
2.086
1.366
Zlatko
0.196
−0.196
Rex
−0.193
0.039
NS 525
2.571
1.196
NS 565
−0.460
0.831
Obzor
1.661
0.200
Perun
−0.150
0.670
Emon
0.966
1.145
Lardeya
−0.977
1.308
Orfej
1.364
0.812
Imeon
0.314
−0.389
Zagorec
0.470
−0.068
Asparuh
−1.552
0.747
Kuber
1.323
0.561
Sajra
0.986
0.593
Devinija
−3.084
0.116
Odisej
2.887
1.077
NS 589
3.900
0.881
Somborac
−1.875
−0.628
Javor
−1.510
−0.820
Kompolti
korai
−3.271
−0.469
Petra
2.995
0.831
GK Stramm −2.716
−0.367
GK Judy
0.738
0.994
Liliana
−4.669
−0.665
Univers
−5.576
−0.141
10 Chemometric Determination of Macro- and Microelements in Barley Genotypes…
In order to determine similarity or distance between tested barley genotypes
based on macro- and microcontent, cluster analysis has been performed (Fig. 10.4).
The dendrogram illustrates that based on macro- and microcontent, barley genotypes are clearly grouped in four clusters. The first cluster is the smallest and is
consisted of three varieties (Hit, Izvor, and Petra). The similarity between Hit and
Petra varieties is based on zinc content. The second cluster is the biggest one and
contains 16 genotypes. Within the frame of this cluster, genotypes Line 1 and NS
565 are most similar; they are linked in a subgroup and have least distant unit (difference). Also, the least distant unit was obtained between the following genotypes:
Rex and Perun, Imeon and Zagorec (Bulgarian two-row varieties), Line 2 and Sajra,
Kuber and GK Judy, and Emon and Orfej (two-row cultivars with Bulgarian origin).
Table 10.13 Factor loading
of tested barley genotypes by
main components
Genotype
PC1
PC2
Hit
2.244
1.108
Izvor
1.054
−2.395
Egej
0.186
−0.201
Line 1
0.094
0.744
Line 2
2.086
1.366
Zlatko
0.196
−0.196
Rex
−0.193
0.039
NS 525
2.571
1.196
NS 565
−0.460
0.831
Obzor
1.661
0.200
Perun
−0.150
0.670
Emon
0.966
1.145
Lardeya
−0.977
1.308
Orfej
1.364
0.812
Imeon
0.314
−0.389
Zagorec
0.470
−0.068
Asparuh
−1.552
0.747
Kuber
1.323
0.561
Sajra
0.986
0.593
Devinija
−3.084
0.116
Odisej
2.887
1.077
NS 589
3.900
0.881
Somborac
−1.875
−0.628
Javor
−1.510
−0.820
Kompolti
korai
−3.271
−0.469
Petra
2.995
0.831
GK Stramm −2.716
−0.367
GK Judy
0.738
0.994
Liliana
−4.669
−0.665
Univers
−5.576
−0.141
10 Chemometric Determination of Macro- and Microelements in Barley Genotypes…