condition mean min max 12pM Fe,Midday 43.8361 43.8361 43.8361 12pM Fe,Midnight 43.769149999999996 43.3725 44.1658 58pM Fe,Midday 48.3117 48.3117 48.3117 58pM Fe,Midnight 40.76848571428572 0.0 56.8691 233pM Fe,Midnight 52.63073333333333 51.6671 54.5184 1160pM Fe,Midday 34.49838571428572 30.9455 40.5504 1160pM Fe,Midnight 40.68938333333333 26.4868 61.4574 High carbon,Dark 51.25198666666667 31.8068 64.3784 High carbon,Light 39.90564076923077 8.04893 63.0654 Low carbon,Dark 39.3507 39.3507 39.3507 Phloroglucinol 27.5094 18.8541 36.2053 Silicon starvation,12h 57.0909 57.0909 57.0909