condition mean min max 12pM Fe,Midday 0.365981 0.365981 0.365981 12pM Fe,Midnight 0.568334 0.375456 0.761212 58pM Fe,Midday 0.647674 0.647674 0.647674 58pM Fe,Midnight 0.6010608571428572 0.0 1.20809 233pM Fe,Midnight 0.5311170000000001 0.0 1.13961 1160pM Fe,Midday 0.15850014285714287 0.0 0.575604 1160pM Fe,Midnight 0.40062866666666663 0.0 1.15598 High carbon,Dark 1.7111731333333333 0.0 4.27672 High carbon,Light 0.5395023846153846 0.0 1.98301 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 1.9187999999999998 1.376 2.99212 Silicon starvation,12h 0.416464 0.416464 0.416464