condition mean min max 12pM Fe,Midday 72.0823 72.0823 72.0823 12pM Fe,Midnight 50.9443 42.6394 59.2492 58pM Fe,Midday 59.4907 59.4907 59.4907 58pM Fe,Midnight 40.28001428571429 0.0 53.8115 233pM Fe,Midnight 44.122566666666664 40.4767 48.3731 1160pM Fe,Midday 40.83811428571429 38.1948 47.0797 1160pM Fe,Midnight 32.63209166666667 23.1732 42.3558 High carbon,Dark 43.30903333333333 31.1522 66.6107 High carbon,Light 42.24906923076923 11.6796 77.4067 Low carbon,Dark 43.7003 43.7003 43.7003 Phloroglucinol 58.433 53.655 63.0767 Silicon starvation,12h 59.8257 59.8257 59.8257