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Table 2 Seedling root traits in the two parental lines and the RIL population

From: Genetic analysis of seedling root traits reveals the association of root trait with other agronomic traits in maize

Root trait

Timea

Zong3

Yu87–1

Significance

RILs

h2(%)c

(dag)

Mean

Mean

levelb

Mean

Range

 

PRL (cm)

4

7.80

5.94

**

8.53

4.89–12.43

87.6

9

15.96

14.94

*

17.55

11.73–22.30

84.2

14

20.40

17.17

**

21.95

16.82–28.63

75.5

PSC

4

3.07

4.27

**

4.21

1.83–7.67

88.8

9

5.80

7.73

**

8.58

3.82–13.67

83.6

14

11.40

12.80

**

9.75

5.50–14.75

83.1

LRN

4

3.60

4.53

NS

7.51

0.39–17.06

87.8

9

46.87

34.87

**

60.56

22.04–166.26

89.4

14

123.67

49.67

**

104.44

41.00–187.75

91.3

RTN

4

6.67

9.00

**

11.72

3.73–21.6

90.2

9

52.60

42.60

**

69.14

26.44–174.90

89.9

14

135.07

62.53

**

114.19

50.6–198.2

91.6

TRL (cm)

4

14.85

14.31

NS

21.56

6.86–37.17

91.3

9

66.20

53.03

**

90.51

42.16–156.88

91.1

14

178.89

99.86

**

160.31

76.91–244.25

93.3

RSA (cm2)

4

6.48

5.44

NS

6.08

1.93–11.57

92.9

9

21.08

18.10

*

29.98

11.15–54.31

92.6

14

50.91

31.22

**

55.14

22.39–91.64

91.9

TRV (cm3)

4

0.29

0.16

**

0.14

0.04–0.26

89.9

9

0.54

0.42

*

0.81

0.22–1.71

90.6

14

1.12

0.84

**

1.53

0.52–2.77

87.9

ARD (mm)

4

1.45

1.19

**

0.90

0.57–1.20

87.9

9

0.98

1.05

*

1.06

0.73–1.38

89.9

14

0.88

1.05

**

1.08

0.79–1.34

90.2

  1. aThe time-points for seedling root trait evaluation: 4 days after germination (dag), 9 dag, and 14 dag
  2. bThe level of statistical significance of differences between two maize genotypes analyzed by t-test: NS, not significant; *, significant at P < 0.05; **, significant at P < 0.01
  3. cBroad-sense heritability detected