condition mean min max 12pM Fe,Midday 41.4388 41.4388 41.4388 12pM Fe,Midnight 40.54645 36.81 44.2829 58pM Fe,Midday 34.3753 34.3753 34.3753 58pM Fe,Midnight 32.970685714285715 0.0 42.0338 233pM Fe,Midnight 53.6098 52.4763 54.3018 1160pM Fe,Midday 14.634292857142857 9.94865 18.2217 1160pM Fe,Midnight 30.990466666666666 12.7056 63.8414 High carbon,Dark 79.10078666666666 17.7877 138.354 High carbon,Light 49.38149615384616 4.84416 100.811 Low carbon,Dark 54.7109 54.7109 54.7109 Phloroglucinol 48.337500000000006 31.1106 57.6409 Silicon starvation,12h 79.5736 79.5736 79.5736