condition mean min max 12pM Fe,Midday 90.623 90.623 90.623 12pM Fe,Midnight 94.3988 90.516 98.2816 58pM Fe,Midday 90.4092 90.4092 90.4092 58pM Fe,Midnight 75.35415714285715 70.8028 80.0538 233pM Fe,Midnight 76.63346666666666 75.415 77.9367 1160pM Fe,Midday 74.73991428571429 70.2938 80.198 1160pM Fe,Midnight 44.202533333333335 28.1521 65.4485 High carbon,Dark 75.89492 56.8213 96.2751 High carbon,Light 64.00302384615385 2.23517 114.58 Low carbon,Dark 54.3726 54.3726 54.3726 Phloroglucinol 60.58866666666667 44.1813 92.0016 Silicon starvation,12h 57.6811 57.6811 57.6811