Effects of fluctuating light intensity in local regions on the respiration rate and photosynthetic rate of adjacent region in the same maize leaves in the field. (A) light intensity under natural fluctuating light in the local regions or in darkness in the adjacent region; (B) light intensity under natural fluctuating light in the local regions or under steady light intensity in the adjacent region; (C) photosynthetic rate under natural fluctuating light in the local regions or respiration in darkness in the adjacent region; (D) photosynthetic rate under natural fluctuating light in the local regions or under steady light intensity in the adjacent region; (E) stomatal conductance under natural fluctuating light in the local regions or in darkness in the adjacent region; (F) stomatal conductance under natural fluctuating light in the local regions or under steady light intensity in the adjacent region; (G) intercellular CO2 concentration under natural fluctuating light in the local regions or in darkness in the adjacent region; (H) intercellular CO2 concentration under natural fluctuating light in the local regions or under steady light intensity in the adjacent region. Ci, intercellular CO2 concentration; FL treatment, fluctuating light treatment; Gs, stomatal conductance; PAR, photosynthetically active radiation; Pn, photosynthetic rate; Rd, respiration in darkness; SL treatment, steady light treatment.