condition mean min max 12pM Fe,Midday 55.6538 55.6538 55.6538 12pM Fe,Midnight 17.84525 15.3687 20.3218 58pM Fe,Midday 50.0797 50.0797 50.0797 58pM Fe,Midnight 30.3702 13.1244 111.775 233pM Fe,Midnight 27.844533333333334 26.877 28.5892 1160pM Fe,Midday 31.66562857142857 28.4239 41.2232 1160pM Fe,Midnight 12.0851975 4.29738 31.2095 High carbon,Dark 39.924413333333334 10.9375 80.0142 High carbon,Light 36.13433923076923 4.2592 75.1538 Low carbon,Dark 19.4155 19.4155 19.4155 Phloroglucinol 30.11456666666667 23.4569 36.2533 Silicon starvation,12h 45.9772 45.9772 45.9772