condition mean min max 12pM Fe,Midday 43.9727 43.9727 43.9727 12pM Fe,Midnight 46.252250000000004 40.4533 52.0512 58pM Fe,Midday 34.4196 34.4196 34.4196 58pM Fe,Midnight 25.636257142857144 0.0 42.0559 233pM Fe,Midnight 12.6944 10.5326 13.9213 1160pM Fe,Midday 15.838642857142856 13.2844 18.5638 1160pM Fe,Midnight 5.338485 0.0 15.1951 High carbon,Dark 25.862857333333334 0.0 53.6435 High carbon,Light 13.562508153846155 0.0 42.8603 Low carbon,Dark 35.727 35.727 35.727 Phloroglucinol 2.6146933333333333 1.06925 5.18515 Silicon starvation,12h 27.9059 27.9059 27.9059