condition mean min max 12pM Fe,Midday 36.2495 36.2495 36.2495 12pM Fe,Midnight 28.190649999999998 26.7041 29.6772 58pM Fe,Midday 34.4638 34.4638 34.4638 58pM Fe,Midnight 20.010285714285715 0.0 27.3687 233pM Fe,Midnight 31.394866666666665 27.6106 34.3429 1160pM Fe,Midday 14.767857142857142 13.551 16.6411 1160pM Fe,Midnight 20.458094166666665 5.32897 44.9801 High carbon,Dark 38.312126666666664 11.9185 60.7067 High carbon,Light 27.29875253846154 0.811443 85.3623 Low carbon,Dark 20.3658 20.3658 20.3658 Phloroglucinol 12.0448 5.1199 17.6031 Silicon starvation,12h 39.8235 39.8235 39.8235