condition mean min max 12pM Fe,Midday 86.4735 86.4735 86.4735 12pM Fe,Midnight 91.7741 89.8327 93.7155 58pM Fe,Midday 67.8171 67.8171 67.8171 58pM Fe,Midnight 70.66197142857143 57.8403 129.432 233pM Fe,Midnight 77.18323333333333 75.9611 79.0751 1160pM Fe,Midday 45.50284285714286 39.9027 51.6932 1160pM Fe,Midnight 57.148475 47.3649 74.8463 High carbon,Dark 79.29222 49.0512 97.9865 High carbon,Light 89.6756 34.7313 119.345 Low carbon,Dark 50.29 50.29 50.29 Phloroglucinol 93.6336 87.3174 102.55 Silicon starvation,12h 128.958 128.958 128.958