condition mean min max 12pM Fe,Midday 30.744 30.744 30.744 12pM Fe,Midnight 29.25965 28.1218 30.3975 58pM Fe,Midday 25.4616 25.4616 25.4616 58pM Fe,Midnight 26.072542857142857 24.0755 28.9055 233pM Fe,Midnight 25.047066666666666 23.0625 27.1789 1160pM Fe,Midday 22.7805 21.0031 24.0973 1160pM Fe,Midnight 14.343745 7.35478 25.3088 High carbon,Dark 20.311856666666667 8.40125 29.9072 High carbon,Light 15.697213846153845 5.53905 22.8999 Low carbon,Dark 15.5042 15.5042 15.5042 Phloroglucinol 11.663973333333333 7.37264 18.3664 Silicon starvation,12h 25.2045 25.2045 25.2045