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Table 6 Two-way ANOVA results (F-values) for effects of supplementary light source and duration on the chlorophyll fluorescence parameters of pepper plants

From: Effects of light-emitting diode supplementary lighting on the winter growth of greenhouse plants in the Yangtze River Delta of China

Source Y(II) QL NPQ Fv/Fm ETR
Light source 20.128** 18.393** 2.274 10.089** 7.848**
Light duration 85.719** 104.381** 7.046** 7.986** 80.325**
Light source × Light duration 1.012 12.104** 15.821** 3.138* 4.604*
  1. * and ** indicate significant difference at p < 0.05 and p < 0.01, respectively