Fig. 3From: Appropriate NH4 +: NO3 − ratio improves low light tolerance of mini Chinese cabbage seedlingsActivities of main enzymes in Calvin cycle in mini Chinese cabbage seedling leaves at 0, 3, 6, 9, 12, and 15 days after treatments. Capital letters A to E represent Rubisco, GAPDH, FBA, FBPase and TK activities, respectively. Letters are followed by 1 and 2 that represent normal (200 μmol m−2 s−1) and low (100 μmol m−2 s−1) light conditions. Vertical bars represent mean ± SE value from three independent replicates (n = 3)Back to article page