Fig. 5.

a Initial (F_o) and b maximum (F_m) fluorescence, c PSII potential activity (F_v/F_o), d PSII effective photochemical efficiency (F_v′/F_m′), e photochemical (qP) and f non-photochemical (qN) extinction coefficients, and g electron transfer rate (ETR) in açaí palm seedlings inoculated with rhizobacteria: group 1 (control—without rhizobacteria), group 2 (UFRA-35, UFRA-38, UFRA-58, UFRA-61, BRM-32111, and UFRA-92), and group 3 (BRM-32113). The means were compared by the Student-Newman-Keuls test (P ≤ 0.05)