condition mean min max 12pM Fe,Midday 33.1309 33.1309 33.1309 12pM Fe,Midnight 29.9304 29.7529 30.1079 58pM Fe,Midday 23.0046 23.0046 23.0046 58pM Fe,Midnight 18.1526 0.0 21.9098 233pM Fe,Midnight 15.776966666666667 14.5614 16.9014 1160pM Fe,Midday 16.906157142857143 14.4196 20.1503 1160pM Fe,Midnight 14.042566666666666 10.3256 18.4467 High carbon,Dark 23.357778 6.11313 69.6866 High carbon,Light 13.714106153846155 5.69105 21.5844 Low carbon,Dark 12.6586 12.6586 12.6586 Phloroglucinol 13.789633333333333 11.7829 17.4189 Silicon starvation,12h 47.235 47.235 47.235