PC I

PC II

PC III

PC IV

PC V

PC VI

PC VII

Eigen value

4.9

3.2

1.6

1.2

0.9

0.8

0.6

% total variance

32.8

22.9

10.9

8.0

6.5

5.0

3.9

Cumulative variance %

32.8

55.7

66.6

74.6

81.1

86.1

90

Factor loading by various traits

Biomass

0.22

0.39

0.02

0.13

0.19

0.09

0.21

Days to 50% flowering

0.40

0.13

0.06

0.03

0.22

0.17

0.06

Days to maturity

0.38

−0.10

0.17

0.21

0.29

0.14

0.02

Grain yield

−0.25

0.40

−0.04

0.09

0.06

−0.07

−0.03

Harvest index

−0.34

−0.12

0.19

0.24

0.09

−0.22

−0.45

Leaf area

0.16

0.31

−0.29

−0.43

−0.09

−0.33

0.03

Number of leaves

0.24

0.27

−0.17

0.19

−0.14

0.26

−0.67

Overall agronomic score

−0.27

0.19

−0.35

0.14

−0.02

0.33

0.41

Peduncle exsertion

−0.30

−0.039

0.45

0.17

−0.02

0.15

0.17

Plant height

−0.02

0.26

0.52

−0.39

0.18

−0.21

−0.07

Number of productive tiller

−0.14

−0.16

−0.12

−0.39

0.70

0.36

−0.14

Panicle length

0.36

0.05

0.32

0.03

−0.10

−0.13

0.24

Panicle width

−0.10

0.22

0.29

−0.39

−0.42

0.58

−0.10

Seedling vigor

0.09

−0.39

−0.14

−0.40

−0.18

−0.04

0.04

Stay-green

−0.24

0.37

−0.06

−0.07

0.19

−0.24

0.01