condition mean min max 12pM Fe,Midday 14.8527 14.8527 14.8527 12pM Fe,Midnight 25.24785 24.518 25.9777 58pM Fe,Midday 11.8281 11.8281 11.8281 58pM Fe,Midnight 15.364471428571429 0.0 21.5845 233pM Fe,Midnight 8.36168 7.36569 8.91342 1160pM Fe,Midday 11.742571428571429 10.0621 13.4325 1160pM Fe,Midnight 8.0149775 4.36726 11.7534 High carbon,Dark 27.674198666666666 1.28403 53.1958 High carbon,Light 18.809661538461537 1.11287 39.3677 Low carbon,Dark 17.7721 17.7721 17.7721 Phloroglucinol 3.20733 2.21949 3.72282 Silicon starvation,12h 29.5774 29.5774 29.5774