condition mean min max 12pM Fe,Midday 92.5983 92.5983 92.5983 12pM Fe,Midnight 43.3913 42.0896 44.693 58pM Fe,Midday 62.9726 62.9726 62.9726 58pM Fe,Midnight 30.995414285714286 0.0 38.5298 233pM Fe,Midnight 26.55333333333333 25.6149 27.0494 1160pM Fe,Midday 64.27587142857143 60.658 68.5822 1160pM Fe,Midnight 22.302891666666667 12.2369 31.8685 High carbon,Dark 28.991393333333335 13.8072 39.3333 High carbon,Light 23.77075 8.7708 46.2624 Low carbon,Dark 23.6504 23.6504 23.6504 Phloroglucinol 37.93286666666667 35.2133 43.1099 Silicon starvation,12h 30.0595 30.0595 30.0595