Table 1 Statistical analysis of microscopic phenotypes of different internodes.

From: Association analysis of maize stem vascular bundle micro-characteristics with yield components based on micro-CT and identification of related genes

Trait

Minimum

Maximum

Mean

Standard deviation

 

CV(%)

 

BTI

EI

HI

BTI

EI

HI

BTI

EI

HI

BTI

EI

HI

BTI

EI

HI

SZ_A

225.38

111.90

19.40

607.51

241.86

57.04

329.81

169.49

33.32

42.73

22.26

6.12

12.95%

13.13%

18.36%

SZ_P

57.70

47.69

16.81

90.64

76.07

27.19

69.16

54.78

21.67

4.42

3.38

1.87

6.39%

6.18%

8.64%

SZ_LA

17.84

13.32

4.50

28.00

18.28

7.81

21.39

15.68

6.01

1.38

0.93

0.53

6.47%

5.91%

8.80%

SZ_SA

15.62

10.96

5.26

25.92

16.60

8.68

19.32

13.64

6.82

1.24

0.95

0.65

6.43%

6.96%

9.58%

SZ_LWR

1.07

1.08

1.07

1.16

1.30

1.36

1.11

1.16

1.14

0.02

0.05

0.05

1.50%

4.01%

4.12%

PZ_A

40.40

20.17

4.77

112.82

44.53

10.43

62.55

28.62

6.64

8.47

3.51

0.99

13.54%

12.25%

14.92%

PZ_T

0.80

0.53

0.29

1.34

0.90

0.46

1.03

0.65

0.36

0.09

0.06

0.03

8.46%

8.40%

8.30%

IZ_A

178.50

85.45

12.79

483.47

198.48

45.84

262.40

136.86

24.92

34.90

19.51

5.16

13.30%

14.25%

20.72%

IZ_T

7.36

5.09

1.94

12.05

7.85

3.63

9.07

6.53

2.75

0.60

0.47

0.28

6.59%

7.24%

10.26%

VB_A

33.15

19.91

3.94

94.43

40.86

11.08

48.65

28.00

6.68

7.35

3.13

1.21

15.12%

11.17%

18.14%

VB_Aave

0.07

0.07

0.04

0.13

0.11

0.08

0.09

0.09

0.05

0.01

0.01

0.01

10.37%

8.98%

12.81%

PZ_VB_A

13.97

9.63

1.55

41.60

17.65

4.47

21.74

12.86

2.71

3.42

1.37

0.53

15.71%

10.66%

19.56%

IZ_VB_A

17.97

8.93

2.19

49.67

21.78

6.26

25.95

14.33

3.77

4.22

1.97

0.73

16.25%

13.71%

19.26%

VB_AreaRatio

0.13

0.13

0.16

0.17

0.21

0.25

0.15

0.17

0.20

0.01

0.01

0.02

5.96%

7.39%

7.99%

VB_N

405.66

253.69

78.89

697.60

417.34

190.96

526.79

325.67

125.26

49.04

29.78

17.44

9.31%

9.14%

13.92%

PZ_VB_N

233.34

139.48

57.12

439.38

245.04

111.98

315.54

198.69

77.96

32.89

18.58

9.80

10.42%

9.35%

12.58%

IZ_VB_N

157.80

90.68

22.76

279.72

173.31

77.20

211.98

127.30

47.16

23.09

14.26

9.09

10.89%

11.21%

19.28%

VB_D

1.23

1.56

2.92

2.76

2.90

5.48

1.65

2.02

3.97

0.19

0.20

0.45

11.34%

10.12%

11.25%

PZ_VB_D

3.93

5.78

9.54

8.21

10.09

16.28

5.25

7.66

12.42

0.59

0.73

1.23

11.20%

9.55%

9.87%

IZ_VB_D

0.57

0.68

1.22

1.54

1.44

3.38

0.84

0.98

1.97

0.12

0.12

0.32

14.46%

12.08%

16.24%

  1. BTI, basal third internode; EI, ear internode; HI, highest internode. CV, variable coefficient. SZ_A: the area of the slice zone; SZ_A: the area of the slice zone; SZ_P: the perimeter of the slice zone; SZ_LA: the long axis length of the slice zone; SZ_SA: the short axis length of the slice zone; SZ_LWR; length-width ratio of the slice zone; PZ_VB_N: The number of vascular bundles in the periphery zone; PZ_VB_D: the vascular bundles density of the periphery zone; PZ_VB_A: the total area of vascular bundles in the periphery zone; PZ_A: the area of the periphery zone; PZ_T: the estimated thickness of periphery zone: similar to the radius of equal inner area; IZ_VB_N: the number of vascular bundles in the inner zone; IZ_VB_D: the vascular bundle density of the inner zone; IZ_VB_A: the total area of vascular bundles in the inner zone. IZ_A: the area of the inner zone. IZ_T: the estimated thickness of periphery zone: similar to the radius of equal circle area. VB_N: the total number of vascular bundles; VB_D: the density of vascular bundles; VB_A: the total area of vascular bundles; VB_Aave: the average area of vascular bundles; VB_AreaRatio: bundle area per unit area (VB_A/SZ_A).
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