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Table 3 Analysis of variance of AULEC from whole plant field inoculation of seven Phytophthora spp. on two Rhododendron cultivars

From: Growth, infection and aggressiveness of Phytophthora pathogens on Rhododendron leaves

Experiment

Source

DF

F

P

1 (18 °C)

Species

6

58.81

 < 0.001

 

Cultivar

1

38.20

 < 0.001

 

Species*Cultivar

6

2.81

0.012

 

Block

5

2.91

0.060

 

Leaf(Block)

12

0.71

0.737

CB

Species

6

39.24

 < 0.001

 

Block

5

5.86

0.006

 

Leaf(Block)

12

0.36

0.975

LDP

Species

6

23.92

 < 0.001

 

Block

5

1.97

0.156

 

Leaf(Block)

12

0.74

0.705

2 (15 °C)

Species

6

125.12

 < 0.001

 

Cultivar

1

18.92

 < 0.001

 

Species*Cultivar

6

3.54

0.002

 

Block

5

0.39

0.845

 

Leaf(Block)

12

1.15

0.322

CB

Species

6

183.79

 < 0.001

 

Block

5

0.75

0.600

 

Leaf(Block)

12

0.98

0.472

LDP

Species

6

31.63

 < 0.001

 

Block

5

0.27

0.922

 

Leaf(Block)

12

0.65

0.799

3 (4 °C)

Species

6

130.58

 < 0.001

 

Cultivar

1

4.85

0.029

 

Species*Cultivar

6

14.68

 < 0.001

 

Block

5

6.01

0.005

 

Leaf(Block)

12

0.53

0.892

CB

Species

6

120.04

 < 0.001

 

Block

5

2..92

0.059

 

Leaf(Block)

12

0.26

0.994

LDP

Species

6

45.37

 < 0.001

 

Block

5

7.37

0.002

 

Leaf(Block)

12

0.60

0.834

4 (8 °C)

Species

6

53.66

 < 0.001

 

Cultivar

1

4.41

0.037

 

Species*Cultivar

6

1.67

0.130

 

Block

5

41.49

 < 0.001

 

Leaf(Block)

12

0.13

1.000

CB

Species

6

30.45

 < 0.001

 

Block

5

12.50

 < 0.001

 

Leaf(Block)

12

0.42

0.951

LDP

Species

6

25.34

 < 0.001

 

Block

5

16.77

 < 0.001

 

Leaf(Block)

12

0.15

1.000

  1. Analysis of variance of AULEC (mm2 × days) (square root transformed). CB = Rhododendron cv. catawbiense ‘Boursault’; LDP = Rhododendron cv. catawbiense × unknown ‘Lee’s dark purple’. Bold P values are significant at < 0.05