condition mean min max 12pM Fe,Midday 38.3659 38.3659 38.3659 12pM Fe,Midnight 30.2805 28.058 32.503 58pM Fe,Midday 25.4062 25.4062 25.4062 58pM Fe,Midnight 22.945271428571427 0.0 31.1277 233pM Fe,Midnight 23.5789 22.9682 24.2925 1160pM Fe,Midday 26.056528571428572 23.747 30.1684 1160pM Fe,Midnight 10.984646666666666 7.3629 15.9713 High carbon,Dark 23.707338 4.04777 42.5424 High carbon,Light 15.649979230769231 1.74863 34.0308 Low carbon,Dark 20.5129 20.5129 20.5129 Phloroglucinol 13.6893 12.4083 15.5146 Silicon starvation,12h 61.6845 61.6845 61.6845