condition mean min max 12pM Fe,Midday 13.0722 13.0722 13.0722 12pM Fe,Midnight 23.03145 19.2416 26.8213 58pM Fe,Midday 11.211 11.211 11.211 58pM Fe,Midnight 14.8596 0.0 20.673 233pM Fe,Midnight 27.438233333333333 24.9585 28.9318 1160pM Fe,Midday 10.694045714285714 7.98152 11.7165 1160pM Fe,Midnight 15.610125 11.0476 18.7391 High carbon,Dark 23.986164 8.91466 36.0186 High carbon,Light 23.56982769230769 8.61711 37.2674 Low carbon,Dark 18.6275 18.6275 18.6275 Phloroglucinol 18.680333333333333 14.749 23.0189 Silicon starvation,12h 34.6711 34.6711 34.6711