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Table 3 Variance components as percentages of the total variance for cross site analyses of parameters of the logistic growth function (Eq. 5)

From: A new approach to prediction of the age-age correlation for use in tree breeding

Species

Trial

Trait

σ 2 α

σ 2 β

σ 2 τβ

σ 2 ε

g ac

LP

G127a

k

1.52**

18.26***

5.05***

75.16

18.54

b

4.81**

2.61***

3.21***

89.38

2.74

r

5.79**

2.71***

4.23***

87.27

2.88

t 0.5

4.22**

8.71***

4.09***

82.98

9.09

WS

G132a

k

3.45*

6.72***

2.38***

87.44

6.96

b

2.76*

1.94**

2.37***

92.94

1.99

r

2.84*

3.70***

2.74***

90.71

3.81

t 0.5

2.79*

2.81***

2.94***

91.46

2.89

WS

G133a

k

1.85*

3.84**

4.85***

89.46

3.91

b

3.03*

1.10

2.58**

93.28

1.14

r

2.56*

1.96*

3.72***

91.76

2.01

t 0.5

2.98*

1.97*

3.52***

91.54

2.03

WS

G103b

k

3.27***

9.10**

6.44***

81.18

9.41

b

17.2***

0.42

2.81***

79.54

0.50

r

8.21***

0.18

3.42***

88.19

0.19

t 0.5

5.02***

0.51

3.56***

90.91

0.53

LP

G134b

k

2.04**

24.96***

8.47***

64.53

25.48

b

2.26**

5.61**

6.37***

85.76

5.74

r

1.35**

12.96**

9.32***

76.37

13.13

t 0.5

1.23**

18.41***

10.11***

70.25

18.64

  1. Test sites were treated as a fixed effect; σ 2 α , σ 2 β , σ 2 τβ , and σ 2 ε = variance components for replication within site, family, or provenance, family or provenance × site interaction and residual, respectively; g ac = intraclass correlation
  2. WS white spruce, LP lodgepole pine
  3. aProgeny trial
  4. bProvenance trial
  5. *P < 0.05; **P < 0.01; ***P < 0.001