Mean values for the photosynthetic and respiration parameters of coffee plants grown under shade or full sunlight conditions.

n = 6±SE. The overall photosynthetic limitations associated with stomatal, mesophyll and biochemical factors are also shown. Data for A, gs, gm_Harley, Ci, Cc_Harley, JF, and RP were obtained under PPFD of 1000 µmol m−2 s−1, Ca of 400 µmol mol−1 and leaf temperature of 25°C. Asterisks indicate statistically significant differences (P<0.05) between shade and full sun treatments.
Abbreviations: A, net photosynthesis; gs, stomatal conductance to water vapour; gm, mesophyll conductance to CO2; Ci, sub-stomatal CO2 concentration; Cc, chloroplastic CO2 concentration; JF, electron transport rate estimated by chlorophyll fluorescence; Vcmax, maximum carboxylation capacity; Jmax, maximum capacity for electron transport rate; Cc_trans, the Cc that denotes the transition between the Rubisco- and RuBP regeneration-limited state; RD, dark respiration; RL, light respiration; RP, photorespiration rate.