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. 2020 Dec 14;9(12):1773. doi: 10.3390/plants9121773

Figure 4.

Figure 4

The capability of physic nut and sacha inchi rhizobacteria to produce indole-3-acetic acid (IAA). Only the top three excellent IAA-forming isolates per cultivation site are presented. The IAA-produced concentrations were primarily estimated with colorimetry and were consequently quantified by high-performance liquid chromatography (HPLC). Every measurement was done in triplicate. The origins of these bacteria are available in Table 2. The difference of lower-case letters or capital letters refers to the statistical difference by one-way ANOVA across results derived from colorimetry (F(17, 36) = 156.06, p ≤ 0.0005) or HPLC (F(17, 36) = 44.57, p ≤ 0.0005), respectively. Asterisks refer to the rhizobacterial isolates that produced the highest level of IAA assessed by HPLC.