condition mean min max 12pM Fe,Midday 55.4746 55.4746 55.4746 12pM Fe,Midnight 45.4722 44.6307 46.3137 58pM Fe,Midday 49.6559 49.6559 49.6559 58pM Fe,Midnight 41.05021428571428 37.2643 45.7551 233pM Fe,Midnight 46.56353333333333 45.1286 48.2715 1160pM Fe,Midday 40.38955714285714 38.0702 42.2746 1160pM Fe,Midnight 35.347541666666665 20.0748 54.3321 High carbon,Dark 53.993719999999996 34.6574 73.6437 High carbon,Light 48.304307692307695 14.9861 69.6662 Low carbon,Dark 28.4445 28.4445 28.4445 Phloroglucinol 43.1793 30.8407 56.9992 Silicon starvation,12h 82.5333 82.5333 82.5333