condition mean min max 12pM Fe,Midday 17.5412 17.5412 17.5412 12pM Fe,Midnight 16.4548 11.2471 21.6625 58pM Fe,Midday 19.8866 19.8866 19.8866 58pM Fe,Midnight 10.577357142857142 0.0 14.309 233pM Fe,Midnight 22.0522 18.7758 24.1261 1160pM Fe,Midday 20.662742857142856 19.1349 25.0018 1160pM Fe,Midnight 6.8458425 2.35631 11.8199 High carbon,Dark 19.43150066666667 4.78569 42.0032 High carbon,Light 19.60023153846154 0.0 55.9097 Low carbon,Dark 18.7056 18.7056 18.7056 Phloroglucinol 8.77219 6.18287 10.0835 Silicon starvation,12h 34.6195 34.6195 34.6195