condition mean min max 12pM Fe,Midday 31.3389 31.3389 31.3389 12pM Fe,Midnight 30.1893 30.1818 30.1968 58pM Fe,Midday 29.6543 29.6543 29.6543 58pM Fe,Midnight 27.267642857142857 21.6975 45.4717 233pM Fe,Midnight 22.19986666666667 20.896 23.8186 1160pM Fe,Midday 23.4028 21.1522 26.7081 1160pM Fe,Midnight 13.198230833333334 9.41256 18.8476 High carbon,Dark 24.18118666666667 12.76 42.6614 High carbon,Light 17.618605384615385 3.40929 25.0864 Low carbon,Dark 19.1227 19.1227 19.1227 Phloroglucinol 27.097466666666666 23.6948 31.5475 Silicon starvation,12h 35.9528 35.9528 35.9528