condition mean min max 12pM Fe,Midday 18.7631 18.7631 18.7631 12pM Fe,Midnight 31.27705 27.0178 35.5363 58pM Fe,Midday 13.1968 13.1968 13.1968 58pM Fe,Midnight 25.493357142857143 0.0 40.3396 233pM Fe,Midnight 30.886633333333332 29.8235 31.4599 1160pM Fe,Midday 15.490257142857143 11.0884 21.8781 1160pM Fe,Midnight 15.185335 5.19097 30.6411 High carbon,Dark 28.29802 11.1707 43.3705 High carbon,Light 33.560364615384614 2.74855 73.642 Low carbon,Dark 25.7987 25.7987 25.7987 Phloroglucinol 6.531416666666667 4.5221 8.5166 Silicon starvation,12h 42.9762 42.9762 42.9762