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. 2020 Nov 5;11:596000. doi: 10.3389/fpls.2020.596000

FIGURE 6.

FIGURE 6

Nitrate concentration in basil leaves. (A) Nitrate concentration in sweet basil cv. Genovese plants grown in control hydroponic solution, in a NO3- or in a SO42–-overfertilized nutrient solution, either non-inoculated or inoculated with A. brasilense. (B) Nitrate concentration in sweet basil cv. Red Rubin plants grown in control hydroponic solution, in a NO3- or in a SO42–-overfertilized nutrient solution, either non-inoculated or inoculated with A. brasilense. Data are reported as means ± SE, n = 6. The statistical significance was tested by means of ANOVA with Tukey posttest. Different letters indicate statistically different values (p < 0.05).