condition mean min max 12pM Fe,Midday 44.9118 44.9118 44.9118 12pM Fe,Midnight 50.134 46.5903 53.6777 58pM Fe,Midday 36.7744 36.7744 36.7744 58pM Fe,Midnight 44.796 33.5481 89.3594 233pM Fe,Midnight 31.620033333333335 30.2136 33.4504 1160pM Fe,Midday 27.378785714285716 23.6622 30.6377 1160pM Fe,Midnight 15.864158333333334 10.5173 21.4223 High carbon,Dark 16.486208666666666 3.32007 28.3287 High carbon,Light 7.993808923076923 0.822786 15.527 Low carbon,Dark 12.3903 12.3903 12.3903 Phloroglucinol 28.4111 21.8948 33.567 Silicon starvation,12h 14.207 14.207 14.207