condition mean min max 12pM Fe,Midday 67.9096 67.9096 67.9096 12pM Fe,Midnight 48.98425 45.5254 52.4431 58pM Fe,Midday 54.4376 54.4376 54.4376 58pM Fe,Midnight 54.779157142857144 40.4212 119.51 233pM Fe,Midnight 31.1176 29.3113 32.7814 1160pM Fe,Midday 40.9262 35.752 42.8618 1160pM Fe,Midnight 25.008283333333335 14.3803 39.8425 High carbon,Dark 33.62994666666667 15.0349 57.3903 High carbon,Light 25.90023769230769 7.12502 56.5922 Low carbon,Dark 17.4813 17.4813 17.4813 Phloroglucinol 51.12956666666666 36.4447 68.4841 Silicon starvation,12h 31.9437 31.9437 31.9437