condition mean min max 12pM Fe,Midday 13.1268 13.1268 13.1268 12pM Fe,Midnight 11.992650000000001 10.8214 13.1639 58pM Fe,Midday 8.71144 8.71144 8.71144 58pM Fe,Midnight 12.857057142857142 6.61274 41.6644 233pM Fe,Midnight 5.05203 4.45267 5.66704 1160pM Fe,Midday 5.917135714285714 4.65148 7.23111 1160pM Fe,Midnight 5.51888 3.95936 7.15409 High carbon,Dark 4.382507266666667 0.958329 10.731 High carbon,Light 3.5805214615384613 0.651065 9.10786 Low carbon,Dark 4.7613 4.7613 4.7613 Phloroglucinol 9.898026666666667 8.66628 10.9666 Silicon starvation,12h 8.53574 8.53574 8.53574