Figure 8.

The effects of the supplementary and night-interrupting 10 μmol∙m⁻²∙s⁻¹ PPFD B light on the enzymatic activities in kalanchoe (Kalanchoe blossfeldiana ‘Rudak’), after 60 days of exposure to the photoperiodic light treatments: the reactive oxygen species (ROS) scavenging enzymatic activities (A): catalase (CAT), guaiacol peroxidase (GPX), superoxide peroxidase (SOD), and ascorbate peroxidase (APX); sucrose synthesis enzymatic activities; (B): sucrose synthase (SS), sucrose phosphate synthase (SPS), phosphoenolpyruvate carboxykinase (PEPC), and phosphoenolpyruvate phosphatase (PEPP); starch synthesis enzymatic activities; (C): soluble starch synthase (SSS), adenosine diphosphate glucose pyro-phosphorylase (ADPGPPase), uridine diphosphate glucose pyro-phosphorylase (UDGPPase); photosynthesis enzymatic activities; (D): activated and non-activated activity of RuBisCo. Vertical bars indicate the means ± standard error (n = 6). Different lowercase letters indicate significant separation within treatments by the Duncan’s multiple range test at p ≤ 0.05. (See Figure 2 for details on the photoperiodic treatments with B light).