condition mean min max 12pM Fe,Midday 38.0915 38.0915 38.0915 12pM Fe,Midnight 36.69845 32.5268 40.8701 58pM Fe,Midday 32.9321 32.9321 32.9321 58pM Fe,Midnight 36.22788571428571 28.3976 62.1147 233pM Fe,Midnight 26.221566666666664 23.6134 27.9454 1160pM Fe,Midday 35.751985714285716 34.6107 36.8399 1160pM Fe,Midnight 20.757675 14.0726 25.4451 High carbon,Dark 28.702526666666667 12.7392 42.0812 High carbon,Light 27.978564615384617 7.61214 50.2601 Low carbon,Dark 22.4306 22.4306 22.4306 Phloroglucinol 20.332633333333334 13.3579 29.5231 Silicon starvation,12h 34.597 34.597 34.597