condition mean min max 12pM Fe,Midday 51.4997 51.4997 51.4997 12pM Fe,Midnight 34.088 32.3774 35.7986 58pM Fe,Midday 35.0092 35.0092 35.0092 58pM Fe,Midnight 31.152614285714286 24.8646 46.1145 233pM Fe,Midnight 28.846833333333333 27.4676 29.9141 1160pM Fe,Midday 29.687971428571426 26.7483 34.1074 1160pM Fe,Midnight 28.383591666666668 18.8907 38.8229 High carbon,Dark 31.429266666666667 14.0387 44.0148 High carbon,Light 34.275306923076926 0.52716 62.5947 Low carbon,Dark 17.7067 17.7067 17.7067 Phloroglucinol 26.3474 23.7837 29.1653 Silicon starvation,12h 40.8896 40.8896 40.8896