condition mean min max 12pM Fe,Midday 45.8864 45.8864 45.8864 12pM Fe,Midnight 31.41465 31.0452 31.7841 58pM Fe,Midday 46.0622 46.0622 46.0622 58pM Fe,Midnight 26.868257142857143 24.6173 30.8939 233pM Fe,Midnight 23.7362 23.6515 23.7992 1160pM Fe,Midday 30.079842857142857 28.2201 31.4596 1160pM Fe,Midnight 19.930583333333335 13.9649 25.1712 High carbon,Dark 30.939206666666667 13.4986 44.6681 High carbon,Light 33.0871 3.23064 73.6232 Low carbon,Dark 20.4768 20.4768 20.4768 Phloroglucinol 19.735799999999998 11.9503 33.7788 Silicon starvation,12h 18.9134 18.9134 18.9134