condition mean min max 12pM Fe,Midday 56.3909 56.3909 56.3909 12pM Fe,Midnight 43.751599999999996 38.5449 48.9583 58pM Fe,Midday 34.6548 34.6548 34.6548 58pM Fe,Midnight 33.85548571428571 0.0 41.6361 233pM Fe,Midnight 32.07546666666667 31.3613 32.6311 1160pM Fe,Midday 38.29315714285714 32.6444 43.0189 1160pM Fe,Midnight 21.460566666666665 13.6929 28.284 High carbon,Dark 29.452146666666668 11.7319 47.4626 High carbon,Light 23.80220076923077 3.08069 44.1627 Low carbon,Dark 16.7645 16.7645 16.7645 Phloroglucinol 26.7942 17.2307 35.5991 Silicon starvation,12h 29.9368 29.9368 29.9368