condition mean min max 12pM Fe,Midday 6.7939 6.7939 6.7939 12pM Fe,Midnight 24.33305 22.4939 26.1722 58pM Fe,Midday 4.78471 4.78471 4.78471 58pM Fe,Midnight 20.409642857142856 0.0 32.8986 233pM Fe,Midnight 14.069566666666667 13.432 15.1108 1160pM Fe,Midday 7.571135714285714 6.32165 10.7788 1160pM Fe,Midnight 7.7243275 3.00968 17.4113 High carbon,Dark 9.575296 2.48029 16.1327 High carbon,Light 9.404679 0.816257 32.0472 Low carbon,Dark 5.18196 5.18196 5.18196 Phloroglucinol 4.10416 2.51959 6.48668 Silicon starvation,12h 20.9053 20.9053 20.9053