condition mean min max 12pM Fe,Midday 44.2173 44.2173 44.2173 12pM Fe,Midnight 47.6659 43.7978 51.534 58pM Fe,Midday 51.2679 51.2679 51.2679 58pM Fe,Midnight 44.02478571428571 0.0 61.2733 233pM Fe,Midnight 78.10226666666667 73.3533 80.6134 1160pM Fe,Midday 55.91417142857143 49.7965 65.2942 1160pM Fe,Midnight 41.30925 30.6456 56.9878 High carbon,Dark 35.483113333333336 13.9772 77.0789 High carbon,Light 30.159485384615383 9.34981 67.5979 Low carbon,Dark 60.7021 60.7021 60.7021 Phloroglucinol 50.48826666666667 48.2496 52.0542 Silicon starvation,12h 51.8347 51.8347 51.8347