condition mean min max 12pM Fe,Midday 48.7516 48.7516 48.7516 12pM Fe,Midnight 41.41975 39.7897 43.0498 58pM Fe,Midday 60.3382 60.3382 60.3382 58pM Fe,Midnight 41.3441 0.0 50.0347 233pM Fe,Midnight 48.013 44.349 50.1132 1160pM Fe,Midday 38.45261428571428 31.1019 46.7549 1160pM Fe,Midnight 37.23679166666667 27.0391 42.443 High carbon,Dark 55.43392 31.8375 82.4811 High carbon,Light 59.86168461538462 37.6568 78.1633 Low carbon,Dark 64.6793 64.6793 64.6793 Phloroglucinol 28.803633333333334 19.8976 36.1576 Silicon starvation,12h 97.9613 97.9613 97.9613