condition mean min max 12pM Fe,Midday 9.19012 9.19012 9.19012 12pM Fe,Midnight 4.60537 4.574 4.63674 58pM Fe,Midday 5.95799 5.95799 5.95799 58pM Fe,Midnight 7.751802857142858 2.07353 32.3462 233pM Fe,Midnight 3.130986666666667 2.94666 3.45683 1160pM Fe,Midday 4.194742857142857 3.68641 4.8401 1160pM Fe,Midnight 1.2412099166666666 0.398548 2.94305 High carbon,Dark 3.4614134 0.576861 5.86726 High carbon,Light 3.4548838461538462 1.35581 5.43914 Low carbon,Dark 3.25286 3.25286 3.25286 Phloroglucinol 1.4075333333333333 1.02632 2.04575 Silicon starvation,12h 4.08993 4.08993 4.08993