condition mean min max 12pM Fe,Midday 1.25498 1.25498 1.25498 12pM Fe,Midnight 0.36911 0.186447 0.551773 58pM Fe,Midday 0.951828 0.951828 0.951828 58pM Fe,Midnight 0.27480385714285716 0.0 0.636881 233pM Fe,Midnight 0.33471966666666664 0.113518 0.555685 1160pM Fe,Midday 0.3396392857142857 0.143425 0.582168 1160pM Fe,Midnight 1.2386210833333333 0.0 2.34892 High carbon,Dark 2.903685933333333 0.575963 9.15843 High carbon,Light 1.1941183076923076 0.0 3.15207 Low carbon,Dark 0.291328 0.291328 0.291328 Phloroglucinol 25.085326666666667 1.01109 70.8445 Silicon starvation,12h 0.816052 0.816052 0.816052