condition mean min max 12pM Fe,Midday 57.459 57.459 57.459 12pM Fe,Midnight 45.3869 41.6756 49.0982 58pM Fe,Midday 36.9174 36.9174 36.9174 58pM Fe,Midnight 27.45797142857143 0.0 39.0031 233pM Fe,Midnight 23.3481 19.0571 27.3506 1160pM Fe,Midday 30.275614285714287 26.5749 35.3997 1160pM Fe,Midnight 19.515641666666667 14.8609 26.7753 High carbon,Dark 26.61454 12.7612 48.255 High carbon,Light 16.851415384615386 2.05358 28.1123 Low carbon,Dark 14.8676 14.8676 14.8676 Phloroglucinol 32.28743333333333 19.0347 46.1285 Silicon starvation,12h 25.6125 25.6125 25.6125