Figure 6 | Scientific Reports

Figure 6

From: IBA and melatonin increase trigonelline and caffeine during the induction and initiation of adventitious roots in Coffea arabica L. cuttings

Figure 6

Principal component analysis in induction (0 DAP and 7 DAP), initiation (28 DAP) and extension (47 and 69 DAP) phasesas a function of IBA and melatonin application (M21 and M43) in Coffea arabica Catuai IAC-144 cuttings. The size and the direction of the vectors (arrows) represent the correlation between the variables and PC. PEE percentage of rooted cuttings, RL root length, T50 time required to reach 50% of the maximum potential, WRDM root dry matter weight, A cumulative root area, SDMW shoot dry matter weight, RS root/shoot dry matter ratio, RGR relative growth rate, H2O2 hydrogen peroxide, SOD superoxide dismutase, CAT catalase, APX ascorbate peroxidase, POD peroxidase, PPO polyphenoloxidase, trigonelline and caffeine.

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