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Table 1 Comparison of doubling time (= τ) observations based on total aerobic plate counting with growth time (= TAPC[t]), time to 1/2-maximal OD with growth time (= tm[t]), and optical density at 590 nm with time (= OD[t]) in either LB broth or MM at 37°C.

From: Evidence for a bimodal distribution of Escherichia coli doubling times below a threshold initial cell concentration

Method τ (min) -- LB   
  Exp. 1 2 3 average F2,4
TAPC[t] 18.6 17.3 18.1 18.0 3.43
tmi] 17.1 17.4 16.8 17.1 P > 0.1
OD[t] 17.9 17.9 17.7 17.8  
Method τ (min) --MM   
  Exp. 1 2 3 average F2,4
TAPC[t] 52.7 50.1 51.9 51.6 0.886
tmi] 50.8 59.9 52.1 54.3 P >> 0.1
OD[t] 50.1 53.8 49.4 51.1