condition mean min max 12pM Fe,Midday 79.0401 79.0401 79.0401 12pM Fe,Midnight 53.5703 47.5836 59.557 58pM Fe,Midday 66.7974 66.7974 66.7974 58pM Fe,Midnight 59.30381428571429 36.6116 168.25 233pM Fe,Midnight 26.413933333333333 23.0753 28.3124 1160pM Fe,Midday 43.9216 38.0377 51.683 1160pM Fe,Midnight 21.234725 17.2307 26.288 High carbon,Dark 37.118156666666664 9.37675 58.6833 High carbon,Light 35.42766923076923 11.1454 81.6061 Low carbon,Dark 24.6107 24.6107 24.6107 Phloroglucinol 36.6274 27.5288 52.399 Silicon starvation,12h 46.4524 46.4524 46.4524