condition mean min max 12pM Fe,Midday 19.9936 19.9936 19.9936 12pM Fe,Midnight 14.1254 12.7222 15.5286 58pM Fe,Midday 14.892 14.892 14.892 58pM Fe,Midnight 16.647375714285715 9.39863 44.984 233pM Fe,Midnight 9.99306 9.22036 10.9036 1160pM Fe,Midday 9.523278571428571 8.01327 10.5481 1160pM Fe,Midnight 16.015033333333335 11.6204 20.7539 High carbon,Dark 14.25412 8.8145 21.46 High carbon,Light 13.06106076923077 3.19521 27.9348 Low carbon,Dark 6.99129 6.99129 6.99129 Phloroglucinol 8.15138 6.42286 9.31102 Silicon starvation,12h 19.6556 19.6556 19.6556