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Table 1 Dissolved oxygen (DO) levels in 10% Hoagland’s solution generated by oxygen (O 2 ) or nitrogen (N 2 ) bubbling

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

O2bubbling at 0.5 L min-1 N2bubbling at 0.4 L min-1
Time (Sec) Assigned time segment value (x) Measured DO (mg L-1)y SD Predicted DO increase within time segment (y)Z Predicted total DO in solution Time (Min) Measured DO (mg L-1) SD
0 0 5.6 0.2 - 5.6 0 5.3 0.1
15 1 8.8 0.0 3.2 8.8 2 2.0 0.0
30 2 11.2 0.2 2.5 11.3 5 1.2 0.0
45 3 13.4 0.3 2.1 13.4 10 0.9 0.1
60 4 15.2 0.2 1.8 15.4 20 0.9 0.0
75 5 16.7 0.2 1.6 16.7 30 1.0 0.1
90 6 Out of range ND 1.4 18.1    
120 8 Out of range ND 1.1 19.2    
150 10 Out of range ND 0.9 20.1    
  1. yThese numbers are meter readings and the meter cannot measure dissolved oxygen above 18.0 mg L-1.
  2. ZThese values are calculated based on a regression model: y = 3.2 - ln (x), as generated from the SAS analysis.