condition mean min max 12pM Fe,Midday 31.211 31.211 31.211 12pM Fe,Midnight 28.1541 25.8494 30.4588 58pM Fe,Midday 21.9682 21.9682 21.9682 58pM Fe,Midnight 16.567585714285713 0.0 20.4696 233pM Fe,Midnight 13.7755 13.1123 14.1397 1160pM Fe,Midday 18.435928571428573 16.5868 21.4439 1160pM Fe,Midnight 9.5825675 8.40346 11.6403 High carbon,Dark 9.097738 2.73969 19.0232 High carbon,Light 7.003309307692308 0.858991 15.0028 Low carbon,Dark 6.86877 6.86877 6.86877 Phloroglucinol 21.601733333333332 18.715 25.9649 Silicon starvation,12h 13.4381 13.4381 13.4381