condition mean min max 12pM Fe,Midday 59.5379 59.5379 59.5379 12pM Fe,Midnight 39.7292 38.8172 40.6412 58pM Fe,Midday 44.9822 44.9822 44.9822 58pM Fe,Midnight 41.36627142857143 30.3016 81.4035 233pM Fe,Midnight 39.4113 38.1331 40.5981 1160pM Fe,Midday 44.508242857142854 39.3861 50.2698 1160pM Fe,Midnight 36.98354166666667 20.2446 53.8849 High carbon,Dark 29.007424666666665 6.79727 51.2094 High carbon,Light 27.93531 3.23545 58.7569 Low carbon,Dark 26.7914 26.7914 26.7914 Phloroglucinol 41.5276 36.6276 48.2078 Silicon starvation,12h 58.7605 58.7605 58.7605