Table 3 Biomass productivity (g L⁻¹ day⁻¹) and cell number of Chlorella sp. at different levels of temperature (T) control: no (NTC), partly (PTC), and full temperature control (FTC) and at a controlled day temperature combined with low night temperature (LN)

g L⁻¹ day⁻¹

 NTC^α

0.20^b

(±0.01)

0.41^a

(±0.01)

0.38^a

(±0.05)

0.37^b

(±0.02)

0.27^b

(±0.06)

 PTC^α

0.18^b

(±0.01)

0.40^a

(±0.02)

0.35^a

(±0.05)

0.41^ab

(±0.03)

0.26^b

(±0.04)

 FTC^α

0.26^a

(±0.01)

0.43^a

(±0.05)

0.35^a

(±0.02)

0.46^a

(±0.01)

0.44^a

(±0.04)

 LN^α

0.19^b

(±0.01)

0.33^b

(±0.00)

No. cells (10⁶ mL⁻¹)

 NTC

177

(±3)

224

(±16)

202

(±5)

222

(±11)

253

(±16)

 PTC

194

(±12)

287

(±5)

207

(±7)

330

(±13)

288

(±5)

 FTC

204

(±25)

248

(±13)

205

(±11)

352

(±24)

191

(±33)

 LN

179

(±43)

289

(±18)