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Shoot (a) and root (b) fresh weight, shoot (c) and root (d) dry weight, and root/shoot ratio (e) of rice plants inoculated A. baldaniorum, E. coli DH10b, G. diazotrophicus lao- (mutant deficient in the production of IAA) and G. diazotrophicus PAL 5 (IAA-producing wild strain). “Control” stands for the uninoculated treatment. T-test (*p < 0.05; **p < 0.01; ***p < 0.001;**** p < 0.0001) for the means of effects between the control and different treatments, ns = not significant
