Figure 3

Effects of salinity stress, ACC deaminase-producing rhizobial bacterium and melatonin on chlorophyll (a) and Pn (b) of common bean. PM100, melatonin priming; PH, hydro priming; PD, no priming; NI, non-inoculated; RI, Rhizobium inoculated; NS, S1 and S2 are non-saline, 4 and 8 dSm−1 of salinity stress, respectively. The vertical bars followed the different letters were significantly differences according to the LSD test at P < 0.05.