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Table 2 Linear regression analyses of colony counts (y) and elevated concentrations of dissolved oxygen in the Hoagland’s solutions (x) after being bubbled with pure oxygen by Phytophthora species and exposure time z

From: Oxygen stress reduces zoospore survival of Phytophthora species in a simulated aquatic system

Species

Exposure (h)

Intercept ( a)

Slope ( b)

P

P. megasperma

0 (10 min)

24.1

-0.4

< 0.0001

 

2

22.0

-0.3

0.0010

 

4

15.3

-0.2

0.0324

 

8

11.9

-0.2

0.4980

 

24

9.5

0.1

0.1902

P. nicotianae

0

2.8

0.2

0.0032

 

2

23.5

-0.4

0.0011

 

4

33.0

-0.7

0.0001

 

8

22.5

-0.2

0.0377

 

24

7.0

0.2

0.0202

P. pini

0

7.6

0.3

0.0032

 

2

42.3

-0.9

0.0033

 

4

43.1

-1.4

< 0.0001

 

8

21.2

-0.3

0.0175

 

24

17.7

-0.4

0.0006

P. tropicalis

0

13.3

-0.2

0.0794

 

2

21.2

-0.4

0.0025

 

4

22.0

-0.6

0.0004

 

8

17.7

-0.3

0.0098

 

24

10.2

-0.4

< 0.0001

  1. zLinear model: y = a + bx, in which x ≥ 5.6 mg L-1.