condition mean min max 12pM Fe,Midday 39.622 39.622 39.622 12pM Fe,Midnight 25.1183 22.4917 27.7449 58pM Fe,Midday 23.1392 23.1392 23.1392 58pM Fe,Midnight 26.659457142857143 11.7053 93.9005 233pM Fe,Midnight 11.299746666666667 8.84214 13.2129 1160pM Fe,Midday 19.158271428571428 17.6192 21.9767 1160pM Fe,Midnight 7.492274166666666 5.5535 9.68277 High carbon,Dark 7.44212 1.41757 13.8904 High carbon,Light 7.987516769230769 0.0 22.8802 Low carbon,Dark 7.29688 7.29688 7.29688 Phloroglucinol 20.205766666666666 17.7107 22.2108 Silicon starvation,12h 32.6132 32.6132 32.6132