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Table 3 Maximum pH values and extent of variation in response over 12-h period to different treatment combinations

From: The short-term effects of elevated CO2 and ammonium concentrations on physiological responses in Gracilariopsis lemaneiformis (Rhodophyta)

  Maximum pH values Extent of variation
LpH (low pH) HpH (high pH) LpH (low pH) HpH (high pH)
LA (low NH4 +) 8.36 ± 0.03a 8.34 ± 0.02a 0.86 ± 0.03a 0.44 ± 0.02b
MA (medium NH4 +) 8.66 ± 0.01b 8.61 ± 0.04b 1.16 ± 0.01c 0.71 ± 0.04a
HA (high NH4 +) 8.78 ± 0.18b 8.77 ± 0.07b 1.28 ± 0.18c 0.87 ± 0.07a
  1. Data are means ± SD (n = 4). Within a column, values not followed by the same letter are significantly different at p < 0.05