condition mean min max 12pM Fe,Midday 35.3956 35.3956 35.3956 12pM Fe,Midnight 37.6142 30.3868 44.8416 58pM Fe,Midday 28.7973 28.7973 28.7973 58pM Fe,Midnight 28.2596 0.0 39.7069 233pM Fe,Midnight 31.8905 30.1801 33.2416 1160pM Fe,Midday 29.012857142857143 27.4978 31.8197 1160pM Fe,Midnight 19.821125 12.8614 25.3237 High carbon,Dark 21.138531333333333 4.5181 33.9718 High carbon,Light 18.02344846153846 2.51733 41.4177 Low carbon,Dark 30.8814 30.8814 30.8814 Phloroglucinol 23.039833333333334 21.1378 26.1325 Silicon starvation,12h 39.467 39.467 39.467