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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.