condition mean min max 12pM Fe,Midday 43.6041 43.6041 43.6041 12pM Fe,Midnight 41.660849999999996 40.261 43.0607 58pM Fe,Midday 37.8618 37.8618 37.8618 58pM Fe,Midnight 29.749142857142857 0.0 37.6388 233pM Fe,Midnight 38.70676666666667 35.8662 42.4397 1160pM Fe,Midday 40.58202857142857 33.0315 44.8129 1160pM Fe,Midnight 36.37343333333333 20.3859 49.6228 High carbon,Dark 50.46440666666667 24.7858 121.426 High carbon,Light 50.480938461538464 14.8744 87.8791 Low carbon,Dark 56.2868 56.2868 56.2868 Phloroglucinol 44.64613333333333 40.3468 49.7244 Silicon starvation,12h 83.0071 83.0071 83.0071