condition mean min max 12pM Fe,Midday 57.2411 57.2411 57.2411 12pM Fe,Midnight 70.16115 61.2477 79.0746 58pM Fe,Midday 85.2084 85.2084 85.2084 58pM Fe,Midnight 52.70332857142857 34.3591 146.92 233pM Fe,Midnight 30.541966666666667 28.956 31.926 1160pM Fe,Midday 46.28292857142857 40.9596 50.9157 1160pM Fe,Midnight 34.472075000000004 22.1309 46.3684 High carbon,Dark 34.85826266666667 5.2343 82.0313 High carbon,Light 35.53945769230769 7.4341 71.6614 Low carbon,Dark 33.2435 33.2435 33.2435 Phloroglucinol 41.443133333333336 26.9339 51.6694 Silicon starvation,12h 26.3369 26.3369 26.3369