condition mean min max 12pM Fe,Midday 50.609 50.609 50.609 12pM Fe,Midnight 45.74795 40.6934 50.8025 58pM Fe,Midday 38.0381 38.0381 38.0381 58pM Fe,Midnight 36.63798571428571 0.0 45.4662 233pM Fe,Midnight 29.359866666666665 29.0752 29.5554 1160pM Fe,Midday 42.06388571428572 39.0309 46.0448 1160pM Fe,Midnight 32.86881666666667 28.9285 37.1857 High carbon,Dark 34.872659999999996 22.7207 57.2943 High carbon,Light 31.343607692307693 10.142 48.6763 Low carbon,Dark 29.2119 29.2119 29.2119 Phloroglucinol 39.7405 39.4057 40.284 Silicon starvation,12h 47.9175 47.9175 47.9175