condition mean min max 12pM Fe,Midday 12.0661 12.0661 12.0661 12pM Fe,Midnight 17.931449999999998 17.1264 18.7365 58pM Fe,Midday 12.4318 12.4318 12.4318 58pM Fe,Midnight 15.207171428571428 0.0 20.9914 233pM Fe,Midnight 20.070966666666667 18.117 23.6527 1160pM Fe,Midday 8.427475714285714 5.81812 10.1274 1160pM Fe,Midnight 5.3760449999999995 2.30459 10.0983 High carbon,Dark 11.338343333333333 0.0 32.6405 High carbon,Light 5.820801769230769 0.973083 13.1739 Low carbon,Dark 11.2808 11.2808 11.2808 Phloroglucinol 2.375103333333333 2.02702 2.61249 Silicon starvation,12h 12.4139 12.4139 12.4139