condition mean min max 12pM Fe,Midday 6.50012 6.50012 6.50012 12pM Fe,Midnight 23.476599999999998 20.2796 26.6736 58pM Fe,Midday 6.42827 6.42827 6.42827 58pM Fe,Midnight 12.545114285714286 0.0 20.511 233pM Fe,Midnight 18.7939 17.1893 21.0951 1160pM Fe,Midday 3.6492244285714284 0.917651 5.8111 1160pM Fe,Midnight 10.209476666666667 5.03496 17.251 High carbon,Dark 11.197440666666667 2.0029 31.5894 High carbon,Light 6.314309307692308 0.0 16.7612 Low carbon,Dark 12.4264 12.4264 12.4264 Phloroglucinol 9.041743333333333 7.66709 11.7226 Silicon starvation,12h 14.1408 14.1408 14.1408