condition mean min max 12pM Fe,Midday 35.7213 35.7213 35.7213 12pM Fe,Midnight 25.6984 24.1072 27.2896 58pM Fe,Midday 24.7147 24.7147 24.7147 58pM Fe,Midnight 17.8039 0.0 24.1304 233pM Fe,Midnight 30.1885 28.1505 32.1224 1160pM Fe,Midday 22.218557142857144 16.9331 24.5354 1160pM Fe,Midnight 33.85259166666667 27.314 39.6844 High carbon,Dark 31.745206666666668 15.6417 68.0597 High carbon,Light 20.45551769230769 4.26464 42.2326 Low carbon,Dark 16.9815 16.9815 16.9815 Phloroglucinol 8.725963333333334 7.20758 10.874 Silicon starvation,12h 58.9189 58.9189 58.9189